Browse species

2986 species

Species	Common name	Group	Class	Status	States	Photo	Spec	Seq
Abacion lactarium (Say, 1821)		Callipodida	Trogloxene	G5	GA, TN	○	○	○
Abacion magnum (Loomis, 1943)		Callipodida	Trogloxene	G5	AL, GA, VA	○	○	○
Acanthocyclops brevispinosus (Herrick, 1884)		Cyclopoida	Stygoxene		IL	○	○	○
Acanthocyclops einslei Mirabdullayev & Defaye, 2004		Cyclopoida	Stygoxene		IL, IN	○	○	○
Acanthocyclops exilis (Coker, 1934)		Cyclopoida	Stygoxene		KY, TN	○	○	○
Acanthocyclops parasensitivus Reid, 1998		Cyclopoida	Stygophile	G2	IN, KY, TN	○	○	○
Acanthocyclops robustus (Sars G.O., 1863)	Robusthops	Cyclopoida	Stygophile		GA, IL, IN, KY, TN	○	○	○
Acanthocyclops venustoides (Coker, 1934)		Cyclopoida	Stygoxene		IL, IN	○	○	○
Acanthocyclops vernalis (Fischer, 1853)	Survannshops	Cyclopoida	Stygophile		GA, IA, IL, IN, KY, NM, TN, TX	○	○	○
Achemenides pectinatus (Causey, 1952)		Chordeumatida	Troglophile	G3	IA, IL, MN, WI	○	○	○
Aclodes nicuesa Hebard, 1928		Orthoptera	Trogloxene			○	○	○
Acris blanchardi Harper, 1947	Blanchard's Cricket Frog	Anura	Accidental	G5 LC	OK	○	○	○
Acris crepitans Baird, 1854	Northern Cricket Frog	Anura	Accidental	G4 LC	KY	○	○	○
Acris gryllus (LeConte, 1825)	Southern Cricket Frog	Anura	Accidental	G5 LC	FL	○	○	○
Acroneuria abnormis (Newman, 1838)	Common Stone	Plecoptera	Stygoxene	G5		○	○	○
Acrotrichis lucidula Rosskothen, 1935		Coleoptera	Troglophile	G2	TN	○	○	○
Actia diffidens Curran, 1933		Diptera	Accidental	GNR		○	○	○
Adelocosa anops Gertsch, 1973	Kauai Cave Wolf Spider	Araneae	Troglobiont	G1G2 EN ESA	HI	○	1	○
Aedes abserratus (Felt & Young, 1904)	Serrated Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes aurifer (Coquillett, 1903)	Golden Bog Mosquito	Diptera	Trogloxene	GNR		○	○	○
Aedes canadensis (Theobald, 1901)	Woodland Pool Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes cinereus Wiedemann, 1818		Diptera	Trogloxene			○	○	○
Aedes communis (De Geer, 1776)	Snow Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes fitchii (Felt & Young, 1904)		Diptera	Trogloxene	G5		○	○	○
Aedes provocans (Walker, 1848)	Provoking Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes punctor (Kirby, 1837)	Moustique Pointu Provocateur Canadien	Diptera	Trogloxene	G5		○	○	○
Aedes sticticus (Meigen, 1835)	Floodwater Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes stimulans (Walker, 1848)	Woodland Mosquito	Diptera	Trogloxene	G5		○	○	○
Aedes triseriatus (Say, 1823)	Eastern Treehole Mosquito	Diptera	Trogloxene	G5	TN	○	○	○
Aedes vexans (Meigen, 1830)	Vexans Mosquito	Diptera	Trogloxene	G5		○	○	○
Agastoschizomus texanus Monjarez-Ruedas et al., 2016		Schizomida	Troglobiont		TX	○	3	○
Agelenopsis pennsylvanica (C. L. Koch, 1843)	Pennsylvania Grass Spider	Araneae	Trogloxene	GNR	IL	○	○	○
Agkistrodon conanti Gloyd, 1969	Green-Tailed Moccasin	Squamata	Accidental	G5	FL	○	○	○
Agkistrodon contortrix (Linnaeus, 1766)	Copperhead	Squamata	Accidental	G5 LC	AR, KY, TN	○	○	○
Agonum extensicolle (Say, 1823)	Extensive Harp Ground Beetle	Coleoptera	Trogloxene	G5	AL, MO	○	○	○
Agonum punctiforme (Say, 1823)	Punctiform Harp Ground Beetle	Coleoptera	Trogloxene	GNR	AL, IN	○	○	○
Agyneta gagnei (Gertsch, 1973)		Araneae	Troglobiont	G1G2	HI	○	1	○
Agyneta hedini Duperre & Paquin, 2009		Araneae	Troglobiont		CO, NM	○	3	○
Agyneta unimaculata (Banks, 1892)		Araneae	Trogloxene	GNR	IL	○	○	○
Alabamocreagris mortis (Muchmore, 1969)	Alabama pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Alabamocreagris pecki (Muchmore, 1969)		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Albiorix anophthalmus Muchmore & Pape, 1998		Pseudoscorpiones	Troglobiont	G1G2	AZ	○	○	○
Alectorobius concanensis Camicas et al., 1998		Ixodida	Trogloxene		OK	○	○	○
Alectorobius kelleyi Camicas et al., 1998		Ixodida	Trogloxene		GA	○	○	○
Aleochara castaneimarmotae Klimaszewski, Webster & Brunke, 2017		Coleoptera	Troglophile	GNR	AR, IL, KY, MO, TN	○	○	○
Aleochara castaneipennis Mannerheim, 1843		Coleoptera	Troglophile	G5	AL	○	○	○
Aleochara fumata Gravenhorst, 1802	Rove Beetle	Coleoptera	Troglophile	GNR	AL, TN	○	○	○
Aleochara lucifuga (Casey, 1893)		Coleoptera	Troglophile	GNR	AL, IA, IL, IN, KY, TN	○	○	○
Aleochara ocularis Klimaszewski, 1984		Coleoptera	Troglophile	GNR	IA	○	○	○
Alligator mississippiensis (Daudin, 1801)	Louisiana Alligator	Crocodylia	Stygoxene	G5 LC	FL	○	○	○
Allocosa funerea (Hentz, 1844)		Araneae	Trogloxene	GNR	TN	○	○	○
Allocosa sublata (Montgomery, 1902)		Araneae	Accidental	GNR	AL	○	○	○
Allocrangonyx hubrichti Holsinger, 1971	Hubricht's Long-tailed Cave Amphipod	Amphipoda	Stygobiont	G3G4 VU	AR, MO	○	18	○
Allocrangonyx pellucidus (Mackin, 1935)	Oklahoma Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	OK, MO	○	12	○
Allolobophora chlorotica (Savigny in Cuvier, 1826)	Green Worm	Crassiclitellata	Troglophile		VA	○	○	○
Allomideopsis wichitaensis (Smith, 1990)		Trombidiformes	Stygobiont		TX	○	○	○
Allotexiweckelia hirsuta Holsinger, 1980		Amphipoda	Stygobiont	G2G3	TX	○	43	○
Almuerzothyas comalensis Smith & Cook, 2009		Trombidiformes	Stygobiont	GNR	TX	○	○	○
Alocodesmus angustatus Silvestri, 1896		Polydesmida	Trogloxene			○	○	○
Aloconota diversiseta Klimaszewski & Peck, 1986		Coleoptera	Troglophile	G1	TN	○	○	○
Aloconota insecta (Thomson, C. G., 1856)	Staph Beetle	Coleoptera	Troglophile	GNR	AL, IL, TN	○	○	○
Aloconota neospelea Klimaszewski & Peck, 1986		Coleoptera	Troglophile	GNR	AL	○	○	○
Aloconota sulcifrons (Stephens, 1832)	Sulcate-Faced Minute Rove Beetle	Coleoptera	Troglophile	GNR	TN	○	○	○
Alucita huebneri Wallengren, 1859		Lepidoptera	Accidental			○	○	○
Amara musculis (Say, 1823)		Coleoptera	Accidental	G5	AL, KY	○	○	○
Ambloplites rupestris (Rafinesque, 1817)	Rock Bass	Centrarchiformes	Stygoxene	G5 LC	KY	○	○	○
Amblyopsis hoosieri Niemiller, Prejean & Chakrabarty, 2014	Hoosier Cavefish	Percopsiformes	Stygobiont	G2	IN	○	63	1
Amblyopsis spelaea DeKay, 1842	Northern Cavefish	Percopsiformes	Stygobiont	G2G3 NT	KY	○	93	384
Ambystoma maculatum (Shaw, 1802)	Spotted Salamander	Caudata	Accidental	G5 LC	AL, AR, OH	○	○	○
Ambystoma opacum (Gravenhorst, 1807)	Marbled Salamander	Caudata	Accidental	G4 LC	FL, OH	○	○	○
Ambystoma tigrinum (Green, 1825)	Eastern Tiger Salamander	Caudata	Accidental	G5 LC	FL, GA, IL	○	○	○
Ameiurus catus (Linnaeus, 1758)	White Catfish	Siluriformes	Stygoxene	G5 LC	FL	○	○	○
Ameiurus melas (Rafinesque, 1820)	Black Bullhead	Siluriformes	Stygoxene	G5 LC	AL, IL	○	○	○
Ameiurus natalis (Lesueur, 1819)	Yellow Bullhead	Siluriformes	Stygoxene	G5 LC	AL, FL, KY	○	○	○
Ameiurus nebulosus (Lesueur, 1819)	Brown Bullhead	Siluriformes	Stygoxene	G5 LC	FL, GA	○	○	○
Ameractis satis Causey, 1959		Julida	Troglobiont	G2G4	AL, GA, TN, VA	○	1	○
Americina adusta (Loew, 1863)		Diptera	Trogloxene	GNR		○	○	○
Americocreagris columbiana (Chamberlin, 1962)		Pseudoscorpiones	Troglobiont	G2G3	OR, WA	○	○	○
Amerigoniscus centralis Vandel, 1978		Isopoda	Troglobiont	G1G2	OK	○	○	○
Amerigoniscus curvatus Vandel, 1978		Isopoda	Troglobiont	G1	GA	○	○	○
Amerigoniscus georgiensis Vandel, 1978		Isopoda	Troglobiont	G1	GA	○	○	○
Amerigoniscus gipsocolus (Vandel, 1965)		Isopoda	Troglobiont	G1G2	TX, NM	○	1	○
Amerigoniscus henroti Vandel, 1950	Powell Valley Terrestrial Cave Isopod	Isopoda	Troglobiont	G3	VA	○	10	○
Amerigoniscus malheurensis Schultz, 1982		Isopoda	Troglobiont	G1	OR	○	2	○
Amerigoniscus nicholasi (Vandel, 1965)		Isopoda	Troglobiont	G1G2	GA, TN	○	4	○
Amerigoniscus proximus Vandel, 1978		Isopoda	Troglobiont	G1G2	GA	○	○	○
Amerizus wingatei (Bland, 1864)		Coleoptera	Trogloxene	G5	IA, IL, KY, WI	○	○	○
Ameroduvalius jeanneli Valentine, 1952		Coleoptera	Troglobiont	G3	KY	○	8	6
Amnestus subferrugineus (Westwood, 1837)		Hemiptera	Troglophile			○	○	○
Amnicola cora Hubricht, 1979	Foushee Cavesnail	Littorinimorpha	Stygobiont	G1 VU	AR, AZ	○	9	○
Amnicola stygius Hubricht, 1971	Stygian cavesnail	Littorinimorpha	Stygobiont	G1 VU	MO	○	6	○
Amoeba guttula Duj.		Euamoebida	Stygoxene		AL, KY	○	○	○
Amoeba vespertilio Pen.		Euamoebida	Stygoxene		AL	○	○	○
Amoebaleria defessa (Osten Sacken, 1877)		Diptera	Troglophile	GNR	AL, AR, GA, IL, IN, KY, MO, TN, WI	○	○	○
Amphasia interstitialis (Say, 1823)	Red-Headed Ground Beetle	Coleoptera	Accidental	G5	IL	○	○	○
Amphibiocapillaria texensis Moravec & Huffman, 2000		Trichocephalida	Stygobiont		TX	○	○	○
Amplaria flucticulus Shear, 2021		Chordeumatida	Troglobiont		CA	○	○	○
Amplaria shastae (Causey, 1958)		Chordeumatida	Troglobiont	G1G2	CA	○	1	○
Amynthas diffringens (Baird, 1869)	Japanese Jumper	Crassiclitellata	Troglophile	GNR	AL	○	○	○
Amynthas minimus (Horst, 1893)		Crassiclitellata	Troglophile		GA	○	○	○
Anachemmis jungi Platnick & Ubick, 2005		Araneae	Troglobiont		CA	○	○	○
Anahita punctulata (Hentz, 1844)	Southeastern Wandering Spider	Araneae	Trogloxene	G4	AL, GA, TN	○	○	○
Anargyrtes annulata (Bilimek, 1867)	Grillo De Cueva	Orthoptera	Trogloxene			○	○	○
Anasaitis canosus (Walckenaer, 1837)	Twin-Flagged Jumping Spider	Araneae	Accidental		AL	○	○	○
Anaxyrus americanus (Holbrook, 1836)	American Toad	Anura	Accidental	G5 LC	AL, IL, KY, TN	○	○	○
Anaxyrus fowleri (Hinckley, 1882)	Fowler's Toad	Anura	Accidental	G5 LC	GA, KY	○	○	○
Anaxyrus terrestris (Bonnaterre, 1789)	Southern Toad	Anura	Accidental	G5 LC	FL, GA	○	○	○
Andrognathus corticarius Cope, 1869	Cope's Noodle Millipede	Platydesmida	Trogloxene	G5	GA	○	○	○
Aneides aeneus (Cope & Packard, 1881)	Green Salamander	Caudata	Trogloxene	G3 NT	AL, GA, TN	○	○	○
Anevrina olympiae (Aldrich, 1904)		Diptera	Trogloxene	GNR	IA	○	○	○
Anguilla rostrata (Lesueur, 1817)	American Eel	Anguilliformes	Stygoxene	G4 EN	FL, GA	○	○	○
Anguispira alternata (Say, 1817)		Stylommatophora	Trogloxene		AL, FL, TN	○	○	○
Anguispira mordax (Shuttleworth, 1852)	Appalachian Tigersnail	Stylommatophora	Trogloxene	G4	KY, TN	○	○	○
Anillaspis explanata (Horn, 1888)		Coleoptera	Troglobiont		CA	○	1	○
Anillinus actuipennis Sokolov & Reddell, 2014		Coleoptera	Troglobiont		TX	○	○	○
Anillinus bexarensis Sokolov, 2022		Coleoptera	Troglobiont		TX	○	○	○
Anillinus cavicola Sokolov, 2012		Coleoptera	Troglobiont		AL	○	○	○
Anillinus clinei Sokolov, 2020		Coleoptera	Troglobiont		AL	○	○	○
Anillinus folkertsioides Sokolov, 2020		Coleoptera	Troglophile		AL	○	○	○
Anillinus forthoodensis Sokolov & Reddell, 2014		Coleoptera	Troglobiont		TX	○	4	○
Anillinus hildebrandti Sokolov, 2020		Coleoptera	Troglobiont		AL	○	○	○
Anillinus longiceps Jeannel, 1963		Coleoptera	Troglobiont		TN	○	2	○
Anillinus reddelli Sokolov, 2022		Coleoptera	Troglobiont		TX	○	○	○
Anillinus smokiensis Sokolov, 2011		Coleoptera	Troglobiont		TN	○	○	13
Anillinus tombarri Sokolov, 2012		Coleoptera	Troglobiont		AL	○	○	○
Anillinus valentinei (Jeannel, 1963)		Coleoptera	Troglobiont	G3G4	AL	○	2	○
Anillinus wisemanensis Sokolov & Kavanaugh, 2014		Coleoptera	Troglobiont		TX	○	4	○
Anisodactylus opaculus (LeConte, 1863)		Coleoptera	Accidental		MO	○	○	○
Anisolabis howarthi Brindle, 1980		Dermaptera	Troglobiont	G1G2	HI	○	1	○
Aniulus nigrans (Chamberlin, 1918)		Julida	Trogloxene		TN	○	○	○
Ankyrodrilus legaeus Holt, 1965		Branchiobdellida	Stygophile		TN	○	○	○
Anolis carolinensis Voigt, 1832	Carolina Anole	Squamata	Accidental	G5 LC	FL, TN	○	○	○
Anopheles earlei Vargas, 1943		Diptera	Trogloxene	G5		○	○	○
Anopheles punctipennis (Say, 1823)	Woodland Malaria Mosquito	Diptera	Trogloxene	G5	GA, IL, IN, KY, TN	○	○	○
Anopheles quadrimaculatus Say, 1824	Common Malaria Mosquito	Diptera	Trogloxene	G5	IL, IN	○	○	○
Anotylus exiguus (Erichson, 1840)	Rove Beetle	Coleoptera	Trogloxene		AL, IA	○	○	○
Anotylus tetracarinatus (Block, 1799)	Rove Beetle	Coleoptera	Trogloxene	GNR	AL	○	○	○
Anthicus cervinus LaFerté-Senéctère, 1848	Cloudy Flower Beetle	Coleoptera	Accidental	G5	WI	○	○	○
Anthrobia coylei Miller, 2005		Araneae	Troglobiont	G2	VA, WV, KY, TN	○	○	○
Anthrobia monmouthia Tellkampf, 1844	Mammoth Cave Spider	Araneae	Troglobiont	G5	AL, KY, TN, VA	○	3	○
Anticarsia gemmatalis Hübner, 1818	Velvetbean Caterpillar	Lepidoptera	Trogloxene	G5	AL	○	○	○
Antrobia culveri Hubricht, 1971	Tumbling Creek cavesnail	Littorinimorpha	Stygobiont	G1 EN ESA	MO	○	7	○
Antrodiaetus unicolor (Hentz, 1842)		Araneae	Trogloxene	GNR	AL, GA, TN	○	○	○
Antrolana lira Bowman 1964		Isopoda	Stygobiont	G2G4 VU ESA	VA, WV	○	37	17
Antrorbis breweri Hershler & Thompson, 1990	Manitou cavesnail	Littorinimorpha	Stygobiont	G1 VU	AL	○	7	1
Antrorbis tennesseensis Perez, Shoobs, Gladstone, & Niemiller, 2019	Tennessee Cavesnail	Littorinimorpha	Stygobiont	GNR	TN	○	3	6
Antroselates spiralis Hubricht, 1963	Shaggy cavesnail	Littorinimorpha	Stygobiont	G3	IN, KY	○	34	3
Antroxestoblatta immaculata (Hebard, 1920)		Blattodea	Trogloxene			○	○	○
Anurida tullbergi Schött, H, 1891		Poduromorpha	Accidental		IA	○	○	○
Anyphaena celer (Hentz, 1847)		Araneae	Accidental	GNR	AL	○	○	○
Aphaenogaster tennesseensis (Mayr, 1862)	Tennessee Collared Ant	Hymenoptera	Accidental	G5	KY	○	○	○
Apheloria corrugata (Wood, 1864)		Polydesmida	Accidental		KY	○	○	○
Apheloria montana (Bollman, 1887)		Polydesmida	Accidental	G5	TN	○	○	○
Apheloria virginiensis Drury, 1770	Black-And-Gold Flat Millipede	Polydesmida	Accidental	G5	KY	○	○	○
Aphrastochthonius grubbsi Muchmore, 1984	Grubb's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	○	○
Aphrastochthonius pachysetus Muchmore, 1976		Pseudoscorpiones	Troglobiont	G1G2	NM	○	○	○
Aphrastochthonius pecki Muchmore, 1968		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Aphrastochthonius similis Muchmore, 1984	Carlow's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	○	○
Aphrastochthonius tenax Chamberlin, 1962		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Aphredoderus gibbosus Lesueur, 1833		Percopsiformes	Stygoxene		FL	○	○	○
Aplexa hypnorum (Linnaeus, 1758)	Moss Bladder Snail	Basommatophora	Stygoxene			○	○	○
Apocheiridium reddelli Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	3
Apochthonius coecus (Packard, 1884)		Pseudoscorpiones	Troglobiont	G1G2	VA	○	2	○
Apochthonius colecampi Muchmore, 1967		Pseudoscorpiones	Troglobiont	G1G2	MO	○	○	○
Apochthonius diabolus Muchmore, 1967		Pseudoscorpiones	Troglobiont	G1	AR	○	○	○
Apochthonius forbesi Benedict, 1979		Pseudoscorpiones	Troglobiont	G1G2	OR	○	○	○
Apochthonius grubbsi Muchmore, 1980		Pseudoscorpiones	Troglobiont	G1G2	CA	○	○	○
Apochthonius hobbsi Muchmore, 1994	Buckskin Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	OH	○	○	○
Apochthonius holsingeri Muchmore, 1967		Pseudoscorpiones	Troglobiont	G1G2	VA	○	○	○
Apochthonius indianensis Muchmore, 1967	Indiana Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	IN	○	○	○
Apochthonius malheuri Benedict & Malcolm, 1973	Malheur Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	OR	○	○	○
Apochthonius minor Muchmore, 1976		Pseudoscorpiones	Troglobiont	G1	GA, TN	○	○	○
Apochthonius moestus (Banks, 1891)		Pseudoscorpiones	Troglophile	GNR	KY	○	○	○
Apochthonius mysterius Muchmore, 1976	Mystery Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	MO	○	○	○
Apochthonius paucispinosus Muchmore, 1967	Dry Fork Valley Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	WV	○	○	○
Apochthonius russelli Muchmore, 1976	Russell Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Apochthonius titanicus Muchmore, 1976		Pseudoscorpiones	Troglobiont	G2	AR	○	○	○
Apochthonius typhlus Muchmore, 1967	Stone County Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	MO	○	○	○
Aporrectodea longa (Ude, 1885)	Deep-Burrowing Longworm	Crassiclitellata	Troglophile	GNR	AL	○	○	○
Aporrectodea rosea (Savigny in Cuvier, 1826)	Pink Soilworm	Crassiclitellata	Troglophile	GNR	KY, VA	○	○	○
Aporrectodea trapezoides (Duges, 1828)		Crassiclitellata	Troglophile		AL, GA, IL, KY, TN, WV	○	○	○
Aporrectodea tuberculata (Eisen, 1874)		Crassiclitellata	Troglophile		IA, MN	○	○	○
Aporrectodea turgida (Eisen, 1874)		Crassiclitellata	Troglophile		VA	○	○	○
Appaleptoneta barrowsi (Gertsch, 1974)		Araneae	Troglobiont	G1	AL	○	1	2
Appaleptoneta credula (Gertsch, 1974)		Araneae	Troglobiont	G1	AL	○	5	2
Appaleptoneta fiskei (Gertsch, 1974)		Araneae	Troglobiont	GNR	GA	○	13	3
Appaleptoneta jonesi (Gertsch, 1974)		Araneae	Troglobiont	G1	AL	○	○	○
Aquarius conformis (Uhler, 1878)		Hemiptera	Stygoxene	GNR	OK	○	○	○
Aquarius remigis (Say, 1832)	North American Common Water Strider	Hemiptera	Stygoxene	GNR	AR, IL, MO, OK	○	○	○
Araneus cavaticus (Keyserling, 1881)	Barn Orbweaver	Araneae	Trogloxene	GNR	AL, KY	○	○	○
Araneus diadematus Clerck, 1757	Cross Orbweaver	Araneae	Trogloxene	GNR		○	○	○
Araneus marmoreus Clerck, 1757	Marbled Orbweaver	Araneae	Accidental	G5	TN	○	○	○
Arcteonais lomondi (Martin, 1907)	Aquatic Oligochaete Worm	Tubificida	Stygophile	GNR	GA	○	○	○
Arenophilus bipuncticeps Wood (1862)	Northern Short-Clawed Centipede	Geophilomorpha	Trogloxene	GNR	GA	○	○	○
Argyrodes nephilae Taczanowski, 1873		Araneae	Accidental		AL	○	○	○
Arianops cavernensis Park, 1951		Coleoptera	Troglobiont	GNR	AL	○	7	○
Arianops gorei Carlton, 2008		Coleoptera	Troglobiont		TN	○	1	○
Arianops jeanneli Park, 1956		Coleoptera	Troglobiont	G1	VA	○	○	○
Arianops pecki Barr, 1974		Coleoptera	Troglobiont		TN	○	1	○
Arianops steevesi Barr, 1974		Coleoptera	Troglobiont	GNR	AL	○	1	○
Arianops stygica Park, 1960		Coleoptera	Troglobiont	G1	TN	○	○	○
Arion fasciatus (Nilsson, 1823)	Banded Slug	Stylommatophora	Trogloxene	G5 LC		○	○	○
Armadillidium nasatum Budde-Lund, 1885	Nosy Pill Woodlouse	Isopoda	Troglophile	GNR	AR, IL, KY, OK, TN	○	○	○
Armadillidium vulgare (Latreille, 1804)	Common Pill Woodlouse	Isopoda	Troglophile	GNR	AL, AR, GA, IL, MO, TN	○	○	○
Arrhopalites benitus (Folsom, 1896)		Symphypleona	Trogloxene		IA	○	○	○
Arrhopalites caecus Barjadze & Djanashvili, 2008		Symphypleona	Troglophile		IA, TN	○	○	○
Artesia subterranea Holsinger, 1980		Amphipoda	Stygobiont	G1G2	TX	○	94	○
Artesia welbourni Holsinger, 1992		Amphipoda	Stygobiont	G1G2	TX	○	2	○
Atheta alabama Klimaszewski & Peck, 1986		Coleoptera	Troglophile	GNR	AL	○	○	○
Atheta annexa Casey, 1910		Coleoptera	Troglophile	G5	AL, FL, GA, IA, TN	○	○	○
Atheta klagesi Bernhauer, 1909		Coleoptera	Troglophile	G5	GA	○	○	○
Atheta lucifuga Klimaszewski & Peck, 1986		Coleoptera	Troglophile	G4	AL, FL, GA, TN	○	○	○
Atheta troglophila Klimaszewski & Peck, 1986		Coleoptera	Troglophile	G4	AL, FL, GA, IA, OK, TN	○	○	○
Atranus pubescens (Dejean, 1828)		Coleoptera	Troglophile	GNR	AL, AR, GA, IL, IN, KY, MO, TN	○	○	○
Attagenus brunneus Faldermann, 1835		Coleoptera	Trogloxene	GNR	IA	○	○	○
Attheyella illinoisensis (Forbes, 1876)		Cyclopoida	Stygoxene		GA, IN, TN	○	○	○
Attheyella nordenskioldii (Borutzky, 1952)		Cyclopoida	Stygoxene		IL, IN	○	○	○
Attheyella pilosa (Chappuis, 1929)		Cyclopoida	Stygoxene		GA	○	○	○
Australinocreagris grahami (Muchmore, 1969)		Pseudoscorpiones	Troglobiont	G1G2	CA	○	○	○
Austrotyla awishoshola Wynne & Shear, 2016		Chordeumatida	Troglobiont		NM	○	○	○
Austrotyla coloradensis (Chamberlin, 1910)		Chordeumatida	Troglobiont		CO	○	47	○
Austrotyla montivaga (Loomis, 1943)		Chordeumatida	Accidental		NM	○	○	○
Austrotyla specus (Loomis, 1939)		Chordeumatida	Troglophile		IL, MO	○	○	○
Austrotyla stephensoni (Chamberlin, 1910)		Chordeumatida	Troglobiont		CO	○	1	○
Axonopsella bakeri Smith & Cook, 1998		Trombidiformes	Stygobiont		FL, TX	○	○	○
Azilia affinis O. Pickard-Cambridge, 1893	Longjawed Orb Weavers	Araneae	Trogloxene		AL, FL	○	○	○
Bactrurus angulus Koenemann & Holsinger, 2001	Cumberland Gap Cave Amphipod	Amphipoda	Stygobiont	G1	TN, VA	○	4	○
Bactrurus brachycaudus Hubricht & Mackin, 1940		Amphipoda	Stygobiont	G4	IL, MO	○	98	8
Bactrurus cellulanus Koenemann & Holsinger, 2001		Amphipoda	Stygobiont	GX	IN	○	4	○
Bactrurus hubrichti Shoemaker, 1945	Kansas Well Amphipod	Amphipoda	Stygobiont	G4	KS, MO, OK, VA	○	26	○
Bactrurus mucronatus (Forbes, 1876)		Amphipoda	Stygobiont	G5	IA, IL, IN, MI, OH, AR, MO	○	126	6
Bactrurus pseudomucronatus Koenemann & Holsinger, 2001	False Sword-tailed Cave Amphipod	Amphipoda	Stygobiont	G2G3	AR, MO	○	25	5
Bactrurus speleopolis Holsinger, Sawicki, & Graening, 2006	Cave City Cave Amphipod	Amphipoda	Stygobiont	G1	AR	○	4	○
Bactrurus wilsoni Koenemann & Holsinger, 2001		Amphipoda	Stygobiont	G1G2	AL	○	4	○
Balantiopteryx plicata Peters, 1867	Gray Sac-Winged Bat	Chiroptera	Trogloxene	LC		○	○	○
Balconorbis coronae (Hershler & Longley, 1987)		Littorinimorpha	Stygobiont		TX	○	○	○
Balconorbis uvaldensis Hershler & Longley, 1986	Balcones ghostsnail	Littorinimorpha	Stygobiont	G1G2	TX	○	47	9
Banksula californica Briggs, 1974	Alabaster Cave Harvestman	Opiliones	Troglobiont	GH	CA	○	3	○
Banksula galilei Briggs, 1974	Galile's Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Banksula grahami Briggs, 1974		Opiliones	Troglobiont	G2G3	CA	○	1	○
Banksula grubbsi Briggs & Ubick, 1981	Grubbs' Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Banksula martinorum Briggs & Ubick, 1981	Martins' Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Banksula melones Briggs, 1974	Melones Cave Harvestman	Opiliones	Troglobiont	G1 VU	CA	○	1	○
Banksula rudolphi Briggs & Ubick, 1981	Rudolph's Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Banksula tuolumne Briggs, 1974	Tuolumne Cave Harvestman	Opiliones	Troglobiont	G2	CA	○	1	○
Banksula tutankhamen Ubick & Briggs, 2002	King Tut Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Basacallis tarachodes Dyar, 1914		Lepidoptera	Accidental	GNR	FL	○	○	○
Basilia boardmani Rozeboom, 1934		Diptera	Trogloxene	G3	FL	○	○	○
Bathynella fraterna Cho & Kim, 1997		Bathynellacea	Stygobiont		CA	○	○	○
Bathynella germanitas Cho & Kim, 1997		Bathynellacea	Stygobiont		CA	○	○	○
Bathynella riparia Pennak & Ward, 1985		Bathynellacea	Stygobiont		CO	○	1	○
Bathyphantes alboventris (Banks, 1892)	Notch-Tipped Shield Sheetweaver	Araneae	Troglophile	GNR	IL, TN	○	○	○
Bathyphantes nigrinus (Westring, 1851)	Donker Wevertje	Araneae	Trogloxene	GNR	IN	○	○	○
Bathyphantes pallidus (Banks, 1892)	Pale Sheetweb Weaver	Araneae	Troglophile	G5	GA, IL, MO, TN	○	○	○
Bathyphantes reprobus (Kulczyński, 1916)	Reprobus Sheetweb Weaver	Araneae	Troglophile	GNR		○	○	○
Bathyphantes weyeri (Emerton, 1875)	Wide Shield Sheetweaver	Araneae	Troglobiont	G4	AR, IN, KY, ON, PA, QC, VA, WI, WV, CO, ME, OH	○	9	○
Batriasymmodes greeveri Park, 1965		Coleoptera	Troglobiont	G1G2	TN	○	2	○
Batriasymmodes monstrosus (LeConte, J. L., 1849)		Coleoptera	Troglophile		VA	○	○	○
Batriasymmodes parki Barr, 1987		Coleoptera	Troglobiont	GH	WV	○	1	○
Batriasymmodes quisnamus (Park, O., 1951)		Coleoptera	Troglobiont	G3	KY, TN	○	3	○
Batriasymmodes spelaeus (Park, 1951)		Coleoptera	Troglobiont	G3G4	AL, GA, TN	○	○	2
Batriasymmodes troglodytes Park, 1951		Coleoptera	Troglobiont	G1G2	AL	○	○	○
Batrisodes barri Park, 1958		Coleoptera	Troglobiont	G1G2	TN	○	2	○
Batrisodes cavernosus Park, 1951		Coleoptera	Troglobiont	G1	AL	○	○	○
Batrisodes clypeospecus Park, 1960		Coleoptera	Troglobiont	G1G2	TN	○	○	○
Batrisodes cryptotexanus Chandler & Reddell, 2001	Coffin Cave Mold Beetle	Coleoptera	Troglobiont	G2	TX	○	28	○
Batrisodes denticollis (Casey, 1884)		Coleoptera	Trogloxene		VA	○	○	○
Batrisodes dentifrons Chandler & Reddell, 2009		Coleoptera	Troglobiont	G1G2	TX	○	1	○
Batrisodes fanti Chandler & Reddell, 2009		Coleoptera	Troglobiont	G1G2	TX	○	1	○
Batrisodes feminiclypeus Chandler & Reddell, 2001		Coleoptera	Troglobiont	G1G2	TX	○	3	○
Batrisodes ferulifer Park, 1960		Coleoptera	Troglobiont	G1	TN	○	○	○
Batrisodes gemmoides Park, 1960		Coleoptera	Troglobiont	G1	TN	○	○	○
Batrisodes gemmus Park, 1956		Coleoptera	Troglobiont	G1	TN	○	○	○
Batrisodes gravesi Chandler & Reddell, 2001		Coleoptera	Troglobiont	G3	TX	○	14	○
Batrisodes grubbsi Chandler, 1992		Coleoptera	Troglobiont	G1G2	TX	○	3	○
Batrisodes henroti Park, 1956		Coleoptera	Troglobiont	G2G3	KY	○	2	○
Batrisodes hubrichti Park, 1958		Coleoptera	Troglobiont	G1	KY	○	2	○
Batrisodes incispes Chandler & Reddell, 2009		Coleoptera	Troglobiont	G1	TX	○	○	○
Batrisodes jocuvestus Park, 1960		Coleoptera	Troglobiont	G1	AL	○	○	○
Batrisodes jonesi Park, O., 1951		Coleoptera	Troglobiont	G2G3	AL	○	○	○
Batrisodes krekeleri Park, 1960		Coleoptera	Troglobiont		IN	○	○	○
Batrisodes lineaticollis (Aubé, 1833)		Coleoptera	Troglophile	G5	AL, GA, TN	○	○	○
Batrisodes pannosus Park, 1960		Coleoptera	Troglobiont	G1	TN	○	2	○
Batrisodes pekinsi Chandler & Reddell, 2009		Coleoptera	Troglobiont	G1	TX	○	2	○
Batrisodes profundus Park, 1956		Coleoptera	Troglobiont	G1G2	AL	○	○	○
Batrisodes reyesi Chandler, 1992		Coleoptera	Troglobiont	G2G3	TX	○	25	○
Batrisodes rossi Park, O., 1947		Coleoptera	Troglophile	GNR	IL	○	○	○
Batrisodes schmitti (Casey, 1897)		Coleoptera	Troglophile		TN	○	○	○
Batrisodes shadeae Chandler & Reddell, 2009		Coleoptera	Troglobiont	G1	TX	○	1	○
Batrisodes specus Park, 1951		Coleoptera	Troglobiont	G3G4	AL, TN, TX	○	4	○
Batrisodes subterraneus Park, 1951		Coleoptera	Troglobiont	G1	AL	○	○	○
Batrisodes texanus Chandler, 1992	Inner Space Cavern Mold Beetle	Coleoptera	Troglobiont	G1G2 ESA	TX	○	15	○
Batrisodes tumoris Park, 1960		Coleoptera	Troglobiont	G1	AL	○	○	○
Batrisodes valentinei Park, 1951		Coleoptera	Troglobiont	G2G4	AL, TN	○	○	○
Batrisodes venyivi Chandler, 1992	Helotes Cave Mold Beetle	Coleoptera	Troglobiont	G1 ESA	TX	○	4	○
Batrisodes wartoni Chandler & Reddell, 2001		Coleoptera	Troglobiont	G1G2	TX	○	1	○
Bdellodrilus illuminatus (Moore, 1894)		Branchiobdellida	Stygophile		TN, WV	○	○	○
Belba bulbipedata (Packard, 1888)		Oribatida	Troglobiont	G1	KY	○	○	○
Bembidion affine Say, 1823		Coleoptera	Trogloxene	GNR	AL	○	○	○
Bembidion lacunarium (Zimmermann in LeConte, 1869)	Greenbrier Riverbank Ground Beetle	Coleoptera	Troglophile	GNR	AL, GA, IA, IL, KY, TN	○	○	○
Bembidion nigripes (Kirby, 1837)		Coleoptera	Trogloxene	G5	AL	○	○	○
Bembidion texanum Chaudoir, 1868	Simple Riverbank Ground Beetle	Coleoptera	Troglophile	GNR	IL, MO, OK	○	○	○
Bertkauia crosbyana Chapman, 1930		Psocodea	Trogloxene		AL	○	○	○
Bibio xanthopus Wiedemann, 1828	Yellow-Footed March Fly	Diptera	Accidental	GNR		○	○	○
Bicornucandona fineganensis Kulkoyluoglu et al., 2011		Podocopida	Stygobiont	GNR	TX	○	○	○
Bimastos heimburgeri (Smith, 1928)		Crassiclitellata	Troglophile	GNR	IL	○	○	○
Bimastos longicinctus (Smith & Gittins, 1915)		Crassiclitellata	Troglophile		IL	○	○	○
Bimastos rubidus (Savigny in Cuvier, 1826)	Gilt-Tail	Crassiclitellata	Troglophile	GNR	AL, GA, IA, IL, KY, MO, NC, TN, VA	○	○	○
Bimastos tumidus (Eisen, 1874)		Crassiclitellata	Troglophile		AL, GA, MO, TN, VA	○	○	○
Bimastos zeteki (Smith & Gittins, 1915)		Crassiclitellata	Troglophile		GA, TN	○	○	○
Bishopella jonesi Goodnight & Goodnight, 1942		Opiliones	Troglobiont	G1	AL	○	○	○
Bishopella laciniosa (Crosby & Bishop, 1924)	Bishop's Harvestman	Opiliones	Troglophile		AL, FL, GA, TN	○	○	○
Bishopella marianna Goodnight & Goodnight, 1942		Opiliones	Troglophile		FL	○	○	○
Bittacomorpha clavipes (Fabricius, 1781)	Phantom Crane Fly	Diptera	Trogloxene	GNR		○	○	○
Blaberus giganteus (Linnaeus, 1758)	Caribbean Giant Cockroach	Blattodea	Trogloxene			○	○	○
Blackburnia aaae (Samuelson & Liebherr, 1992)		Coleoptera	Troglobiont	G1G2	HI	○	○	○
Blackburnia howarthi (Samuelson & Liebherr, 1992)		Coleoptera	Troglobiont	G1G2	HI	○	○	○
Blancosoma scaturgo Shear & Hubbard, 1998		Chordeumatida	Troglobiont	G1G2	CO	○	○	○
Blaniulus guttulatus (Fabricius, 1798)	Snake Millepede	Julida	Trogloxene	G5	GA	○	○	○
Blarina brevicauda (Say, 1823)		Eulipotyphla	Accidental		AL, KY	○	○	○
Blarina carolinensis (Bachman, 1837)	Southern Short-Tailed Shrew	Eulipotyphla	Accidental	G5 LC	AR, FL	○	○	○
Bleptina caradrinalis Guenée, 1854	Bent-Winged Owlet	Lepidoptera	Trogloxene	G5	AL	○	○	○
Bodo minimus Klebs		Eubodonida	Stygoxene		AL, KY	○	○	○
Boisea trivittata (Say, 1825)	Boxelder Bug	Hemiptera	Accidental	GNR	IL	○	○	○
Bolitophila cinerea Meigen & Wiedemann, 1818		Diptera	Trogloxene	GNR		○	○	○
Bolitophila hybrida (Meigen, 1804)		Diptera	Trogloxene	GNR	IN	○	○	○
Bolitophila perlata Garrett, 1925		Diptera	Trogloxene	GNR		○	○	○
Bos taurus Linnaeus, 1758	Taurine Cattle	Artiodactyla	Accidental	G5	KY	○	○	○
Bosmina longirostris (O. F. Müller, 1776)	Common Long-Nosed Waterflea	Anomopoda	Stygoxene	GNR	KY, TN	○	○	○
Bowmanasellus sequoiae (Bowman, 1975)	Sequoia Cave Isopod	Isopoda	Stygobiont	G2	CA	○	○	○
Brachinus fumans (Fabricius, 1781)	American Bombardier Beetle	Coleoptera	Accidental	GNR	MO	○	○	○
Brachycybe lecontii Wood, 1864		Platydesmida	Trogloxene	G5	AR	○	○	○
Brachycybe petasata Loomis, 1936		Platydesmida	Trogloxene		TN	○	○	○
Brachycybe producta Loomis, 1936		Platydesmida	Trogloxene		CA	○	○	○
Brachydesmus superus Latzel, 1884	Compact Flat-Backed Millipede	Polydesmida	Trogloxene		PA, VA	○	○	○
Brackenridgia ashleyi Lewis, 2004	Ashley's Terrestrial Cave Isopod	Isopoda	Troglobiont	G1G3	AR, MO	○	3	○
Brackenridgia cavernarum Ulrich, 1902		Isopoda	Troglobiont	G3G4	TX, NM	○	8	○
Brackenridgia reddelli (Vandel, 1965)		Isopoda	Troglobiont	G2G3	TX	○	13	○
Bradycellus rupestris (Say, 1823)	Rock-Dwelling Harp Ground Beetle	Coleoptera	Trogloxene	G5	AL	○	○	○
Bradysia forficulata (Bezzi, 1914)		Diptera	Troglophile	GNR	GA	○	○	○
Brathinus nitidus LeConte, J. L., 1852		Coleoptera	Troglophile	G4	AL, KY, TN	○	○	○
Bremia caricis (Felt, 1907)		Diptera	Trogloxene			○	○	○
Bryocamptus morrisoni (Chappuis, 1929)	Morrison's Cave Copepod	Harpacticoida	Stygobiont	G3G4	IN, KY, MD	○	2	○
Bryocamptus newyorkensis (Chappuis, 1927)		Harpacticoida	Stygoxene		TN	○	○	○
Bryocamptus nivalis (Willey, 1925)		Harpacticoida	Stygoxene		IN	○	○	○
Caconemobius albus Otte, 1994		Orthoptera	Troglobiont		HI	○	○	○
Caconemobius howarthi Gurney & Rentz, 1978	Howarth's Cave Cricket	Orthoptera	Troglobiont	G1G2 VU	HI	○	○	○
Caconemobius paralbus Otte, 1994		Orthoptera	Troglobiont		HI	○	○	○
Caconemobius uuku Otte, 1994		Orthoptera	Troglobiont		HI	○	1	○
Caconemobius varius Gurney & Rentz, 1978	Kuamana Cave Cricket	Orthoptera	Troglobiont	G1G2 VU	HI	○	1	○
Caecidotea acuticarpa Mackin & Hubricht, 1940		Isopoda	Stygobiont	G2G3	OK, KS	○	26	○
Caecidotea adenta Mackin & Hubricht, 1940		Isopoda	Stygobiont	G1G2	OK	○	3	○
Caecidotea alabamensis Stafford, 1911		Isopoda	Stygobiont	G3G4	AL, IL, IN, KY, TN	○	128	○
Caecidotea alleghenyensis Lewis, Bowman, & Feller, 2011	Allegheny Spring Isopod	Isopoda	Stygobiont	G1G2	MD	○	18	○
Caecidotea ancyla (Fleming, 1972)		Isopoda	Stygobiont	G3G4	AR, MO, OK	○	34	○
Caecidotea antricola Creaser, 1931		Isopoda	Stygobiont	G5	AR, MO, OK, IL, KY, OH	○	191	10
Caecidotea barri (Steeves, 1965)	Clifton Cave Isopod	Isopoda	Stygobiont	G1 EN	KY	○	3	○
Caecidotea beattyi Lewis & Bowman, 1981	Beatty's Groundwater Isopod	Isopoda	Stygobiont	G3G4	IL, IN, MO	○	16	13
Caecidotea bicrenata (Steeves, 1963)	Two-toothed Cave Isopod	Isopoda	Stygobiont	G5	AL, IL, KY, TN	○	66	28
Caecidotea bilineata Lewis & Bowman, 1996		Isopoda	Stygobiont	G2G3	TX	○	4	○
Caecidotea cannula (Steeves, 1963)	Cannulate Cave Isopod	Isopoda	Stygobiont	G1	WV	○	12	○
Caecidotea carolinensis (Lewis & Bowman, 1977	Bennett's Mill Cave Isopod	Isopoda	Stygobiont	G2G3	NC, SC	○	4	○
Caecidotea catachaetus (Fleming & Steeves, 1972)		Isopoda	Stygobiont		GA, TN, AL	○	10	○
Caecidotea circulus (Steeves & Holsinger, 1968)		Isopoda	Stygobiont	G1G2	TN	○	3	○
Caecidotea cumberlandensis Lewis, 2000	Cumberland Gap Cave Isopod	Isopoda	Stygobiont	G1G2	VA	○	2	3
Caecidotea cyrtorhynchus (Fleming & Steeves, 1972)		Isopoda	Stygobiont	G1	GA	○	4	○
Caecidotea dauphina Modlin, 1986		Isopoda	Stygobiont		AL	○	2	○
Caecidotea dimorpha (Mackin & Hubricht, 1940)		Isopoda	Stygobiont	G2G3	AR, MO, IN	○	17	○
Caecidotea dunlaporum Lewis, 2015	Dunlap's Groundwater Isopod	Isopoda	Stygobiont	GNR	IN	○	○	4
Caecidotea extensolinguala (Fleming, 1972)		Isopoda	Stygobiont		MO	○	3	○
Caecidotea filicispeluncae Bowman & Hobbs, 1983	Fern Cave Isopod	Isopoda	Stygobiont	G1	OH	○	3	○
Caecidotea fisherorum Lewis & Lewis, 2023		Isopoda	Stygobiont	GNR	VA	○	○	15
Caecidotea fonticulus Lewis, 1983		Isopoda	Stygobiont	GNR	AR	○	5	○
Caecidotea franzi (Holsinger & Steeves, 1971)	Franz's Cave Isopod	Isopoda	Stygobiont	G2G4	KY, MD, PA, WV	○	15	○
Caecidotea fustis Lewis, 1981	Fustis Cave Isopod	Isopoda	Stygobiont	G3	MO	○	15	○
Caecidotea hobbsi (Maloney, 1939)	Florida Cave Isopod	Isopoda	Stygobiont	G1G2	FL, GA, VA	○	17	8
Caecidotea insula Lewis, 2013	Kindt's Cave Isopod	Isopoda	Stygobiont	G1	OH	○	2	○
Caecidotea jordani (Eberly, 1966)	Jordan's Cave Isopod	Isopoda	Stygobiont	G2G3	IN	○	20	10
Caecidotea kendeighi (Steeves & Seidenberg, 1971)	Kendeigh's Groundwater Isopod	Isopoda	Stygobiont	G5	IA, IL, IN, MO, OH	○	81	9
Caecidotea lesliei Lewis & Bowman, 1981		Isopoda	Stygobiont	G1G2	IL, MO	○	3	○
Caecidotea mackini Lewis, Graening, Fenolio & Bergey, 2006		Isopoda	Stygobiont	GNR	OK	○	3	○
Caecidotea macropropoda Chase & Blair, 1937	Bat Cave Isopod	Isopoda	Stygobiont	G3 VU	AR, OK	○	27	○
Caecidotea metcalfi (Fleming, 1972)		Isopoda	Stygobiont	G1G2	KS	○	4	○
Caecidotea nickajackensis Packard, 1881	Nickajack Cave Isopod	Isopoda	Stygobiont	G1 VU	AL, TN, AR, GA, KY, MO, VA	○	9	○
Caecidotea nordeni Lewis & Bowman, 2010	Norden's Groundwater Isopod	Isopoda	Stygobiont	GH	MD	○	2	○
Caecidotea nortoni (Steeves, 1966)	Norton's Cave Isopod	Isopoda	Stygobiont	G2G3	TN	○	6	○
Caecidotea ornatus Lewis & Lewis, 2023		Isopoda	Stygobiont	G1	VA	○	○	21
Caecidotea packardi Mackin & Hubricht, 1940		Isopoda	Stygobiont	G2G4	IL, MO, KY	○	34	10
Caecidotea paurotrigona (Fleming, 1972)		Isopoda	Stygobiont	G1G2	LA, MS	○	3	○
Caecidotea putea Lewis, 2009	American Waterslaters	Isopoda	Stygobiont	G1G3	FL, GA	○	○	○
Caecidotea recurvata (Steeves, 1963)	Southwest Virginia Cave Isopod	Isopoda	Stygobiont	G5	TN, VA	○	120	76
Caecidotea reddelli (Steeves, 1968)		Isopoda	Stygobiont	G3G4	TX	○	267	11
Caecidotea richardsonae Hay, 1901	Tennessee Valley Cave Isopod	Isopoda	Stygobiont	G5	AL, GA, TN, VA	○	59	○
Caecidotea rotunda Bowm& & Lewis, 1984	Frost Cave Isopod	Isopoda	Stygobiont	G2G4	IN, OH	○	17	32
Caecidotea salemensis Lewis, 1981	Salem Cave Isopod	Isopoda	Stygobiont	G4	AR, MO	○	33	4
Caecidotea scyphus (Steeves & Holsinger, 1968)		Isopoda	Stygobiont	G1G2	TN, WV	○	○	○
Caecidotea serrata (Fleming, 1972)	Serrated Cave Isopod	Isopoda	Stygobiont	G1G2	MO	○	4	○
Caecidotea simonini (Bresson, 1955)		Isopoda	Stygobiont	G1	WV	○	3	○
Caecidotea simulator Lewis, 1999		Isopoda	Stygobiont	G2G3	AR, KS, OK	○	7	○
Caecidotea sinuncus (Steeves, 1965)		Isopoda	Stygobiont	G1	WV	○	3	○
Caecidotea spatulata Mackin & Hubricht, 1940		Isopoda	Stygobiont	G3G4	IL, MO, VA	○	6	○
Caecidotea steevesi (Fleming, 1972)	Steeves' Cave Isopod	Isopoda	Stygobiont	G3G4	AR, KS, MO, OK	○	10	○
Caecidotea stiladactyla Mackin & Hubricht, 1940	Slender-fingered Cave Isopod	Isopoda	Stygobiont	G3G4	AR, MO, OK	○	64	○
Caecidotea stygia Packard, 1871	Stygian Cave Isopod	Isopoda	Stygobiont	G5	IL, IN, KY, MO, OH, TN, MS, VA	○	190	111
Caecidotea teresae Lewis, 1982		Isopoda	Stygobiont	GX	IN	○	5	○
Caecidotea tridentata Hungerford, 1922		Isopoda	Stygobiont	G1G2	IL, KS, AR, MO, OK	○	38	○
Calasellus californicus (Miller, 1933)		Isopoda	Stygobiont	G2	CA, OR	○	20	1
Calasellus longus Bowman, 1981		Isopoda	Stygobiont	G1	CA	○	3	○
Calathaemon holthuisi (Strenth, 1976)	Purgatory Cave Shrimp	Decapoda	Stygobiont	G1G2 EN	TX	○	11	○
Calathus opaculus LeConte, 1854		Coleoptera	Trogloxene	GNR	KY	○	○	○
Calicina cloughensis (Briggs & Hom, 1967)	Clough Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	5	7
Califobathynella noodti Cho, 1997		Bathynellacea	Stygobiont		CA	○	○	○
Califobathynella teucherti Cho, 1997		Bathynellacea	Stygobiont		CA	○	○	○
Californibathynella californica Schminke & Noodt, 1988		Bathynellacea	Stygobiont		CA	○	○	○
Calileptoneta briggsi Ledford, 2004	Briggs' Cave Spider	Araneae	Troglobiont	G1	CA	○	1	○
Callinectes sapidus Rathbun, 1896	American Blue Crab	Decapoda	Stygoxene	GNR	FL	○	○	○
Calliphora terraenovae Hall, 1948		Diptera	Trogloxene		NM	○	○	○
Calliphora vicina Robineau-Desvoidy, 1830		Diptera	Trogloxene		GA, IL	○	○	○
Calliphora vomitoria (Linnaeus, 1758)	Orange-Bearded Bluebottle	Diptera	Trogloxene	GNR	GA, IN	○	○	○
Callobius bennetti (Blackwall, 1846)	Bennett's Laceweaver	Araneae	Trogloxene	G5	IN	○	○	○
Caloptilia alnivorella (Chambers, 1875)	Alder Leafminer	Lepidoptera	Accidental	GNR		○	○	○
Calymmaria persica (Hentz, 1847)		Araneae	Troglophile	GNR	AL, GA, IL, KY, TN, VA	○	○	○
Calymmaria virginica Heiss & Draney, 2004		Araneae	Trogloxene	G1	TN	○	○	○
Cambala annulata (Say, 1821)	Violet Ridged Millipede	Spirostreptida	Troglophile	G5	AL, FL, GA, IN, KY, TN	○	○	○
Cambala hubrichti Hoffman, 1958		Spirostreptida	Troglophile	G5	GA, NC, TN	○	○	○
Cambala minor Bollman, 1888	Amber Ridged Millipede	Spirostreptida	Troglophile	G5	AL, AR, GA, IL, IN, KY, MO, OK, TN, VA, WV	○	○	○
Cambala ochra Chamberlin, 1942		Spirostreptida	Troglophile		AL, GA	○	○	○
Cambala reddelli Causey, 1964		Spirostreptida	Troglophile		NM, TX	○	○	○
Cambala speobia Chamberlin, 1953		Spirostreptida	Troglobiont	G4	TX, Mexico	○	1.3k	○
Cambarincola alienus Holt, 1963		Branchiobdellida	Stygobiont	G1G2	KY, TN	○	9	○
Cambarincola demissus Hoffman, 1963		Branchiobdellida	Stygophile		WV	○	○	○
Cambarincola dubius Holt, 1973		Branchiobdellida	Stygobiont	G1G2	IN	○	8	○
Cambarincola fallax Hoffman, 1963		Branchiobdellida	Stygophile	GNR	TN, WV	○	○	○
Cambarincola heterognathus Hoffman, 1963		Branchiobdellida	Stygophile		WV	○	○	○
Cambarincola holostomus Hoffman, 1963		Branchiobdellida	Stygophile		TN	○	○	○
Cambarincola leoni Holt, 1973		Branchiobdellida	Stygobiont	G3	FL	○	13	○
Cambarincola leptadenus Holt, 1973		Branchiobdellida	Stygophile	G1	TN	○	○	○
Cambarincola manni Holt, 1973		Branchiobdellida	Stygoxene		FL	○	○	○
Cambarincola marthae Holt, 1973		Branchiobdellida	Stygobiont	G1G2	TN	○	2	○
Cambarincola philadelphicus (Leidy, 1851)		Branchiobdellida	Stygophile		FL, IN, KY, TN, VA, WV	○	○	○
Cambarincola sheltensis Holt, 1973		Branchiobdellida	Stygobiont	G1G2	AL	○	12	○
Cambarincola steevesi Holt, 1973		Branchiobdellida	Stygobiont	G3	KY	○	6	○
Cambarincola susanae Holt, 1973		Branchiobdellida	Stygophile			○	○	○
Cambarincola vitrea Ellis, 1918		Branchiobdellida	Stygophile		FL	○	○	○
Cambarus aculabrum Hobbs & Brown, 1987	Benton County Cave Crayfish	Decapoda	Stygobiont	G1 CR ESA	AR, MO	○	11	4
Cambarus bartonii (Fabricius, 1798)	Appalachian Brook Crayfish	Decapoda	Stygophile	G5 LC	GA, IN, KY, TN, VA, WV	○	○	○
Cambarus cryptodytes Hobbs, 1941	Dougherty Plain Cave Crayfish	Decapoda	Stygobiont	G2G3 LC	FL, GA	○	47	6
Cambarus hamulatus (Cope & Packard, 1881)	Prickly Cave Crayfish	Decapoda	Stygobiont	G3G4 LC	AL, TN, KY	○	46	58
Cambarus hubbsi Creaser, 1931	Hubbs' Crayfish	Decapoda	Stygoxene	G3 LC		○	○	○
Cambarus hubrichti Hobbs, 1952	Salem Cave Crayfish	Decapoda	Stygobiont	G4 DD	MO	○	21	23
Cambarus jonesi Hobbs & Barr, 1960	Alabama Cave Crayfish	Decapoda	Stygobiont	G2 VU	AL	○	70	36
Cambarus laconensis Buhay & Crandall, 2009	Lacon Exit Cave Crayfish	Decapoda	Stygobiont	G1 CR	AL	●	8	12
Cambarus latimanus (LeConte, 1856)	Variable Crayfish	Decapoda	Stygoxene	G5 LC	GA, TN	○	○	○
Cambarus nerterius Hobbs, 1964	Greenbrier Cave Crayfish	Decapoda	Stygobiont	G1 NT	WV	○	26	2
Cambarus parvoculus Hobbs & Shoup, 1947	Mountain Midget Crayfish	Decapoda	Accidental	G5 LC	KY	○	○	○
Cambarus pecki (Hobbs, 1967)	Phantom Cave Crayfish	Decapoda	Stygobiont	G1G2 EN	AL	○	16	10
Cambarus setosus Faxon, 1889	Bristly Cave Crayfish	Decapoda	Stygobiont	G3 NT	AR, MO, OK	○	51	11
Cambarus sheltae (Cooper & Cooper, 1997)	Shelta Cave Crayfish	Decapoda	Stygobiont	G1 CR	AL	○	○	○
Cambarus speleocoopi Buhay & Crandall, 2009	Sweet Home Alabama Cave Crayfish	Decapoda	Stygobiont	G1 EN	AL	○	6	12
Cambarus striatus Hay, 1902	Ambiguous Crayfish	Decapoda	Stygophile	G5 LC	AL, GA, TN	○	○	○
Cambarus subterraneus Hobbs III, 1993	Delaware County Cave Crayfish	Decapoda	Stygobiont	G1 CR	OK, KY	○	7	6
Cambarus tartarus Hobbs & Cooper, 1972	Oklahoma Cave Crayfish	Decapoda	Stygobiont	G1 CR	OK	○	11	10
Cambarus tenebrosus Hay, 1902	Cavespring Crayfish	Decapoda	Stygophile	G5 LC	AL, GA, IL, IN, KY, TN	○	○	○
Cambarus veitchorum Cooper & Cooper, 1997	White Spring Cave Crayfish	Decapoda	Stygobiont	G1 CR	AL	○	5	○
Cambarus zophonastes Hobbs & Bedinger, 1964	Hell Creek Cave Crayfish	Decapoda	Stygobiont	G1 CR ESA	AR	○	6	2
Camponotus sayi Emery, 1893	Say's Carpenter Ant	Hymenoptera	Accidental	GNR	AR	○	○	○
Campostoma anomalum (Rafinesque, 1820)	Central Stoneroller	Cypriniformes	Stygoxene	G5 LC	KY	○	○	○
Campostoma oligolepis Hubbs & Greene, 1935	Largescale Stoneroller	Cypriniformes	Stygoxene	G5 LC	AL, KY	○	○	○
Canis dirus Leidy, 1858	Dire Wolf	Carnivora	Accidental			○	○	○
Canis familiaris Linnaeus, 1758	Domestic Dog	Carnivora	Accidental	GNA	AL	○	○	○
Canis latrans Say, 1823	Coyote	Carnivora	Accidental	G5 LC	KY, OK	○	○	○
Canis rufus Audubon & Bachman, 1851	Red Wolf	Carnivora	Accidental	G1 CR	AL	○	○	○
Canthon imitator Brown, 1946		Coleoptera	Trogloxene		NM	○	○	○
Carcinophora americana (Palisot de Beauvois)		Dermaptera	Trogloxene			○	○	○
Carebara urichi (Wheeler, 1922)		Hymenoptera	Accidental			○	○	○
Carnarimelita janstocki Bousfield, 1990		Amphipoda	Stygobiont		HI	○	6	○
Carphophis amoenus (Say, 1825)	Common Wormsnake	Squamata	Accidental	G5 LC	AL, GA	○	○	○
Cartodere constricta (Gyllenhal, 1827)	Plaster Beetle	Coleoptera	Accidental	GNR	IA	○	○	○
Carychium clappi Hubricht, 1959	Appalachian Thorn	Basommatophora	Troglophile	G5	AL	○	○	○
Carychium exile H. C. Lea, 1842	Ice Thorn	Basommatophora	Troglophile	G5	AL, IL, KY, TN	○	○	○
Carychium mexicanum Pilsbry, 1891	Southern Thorn	Basommatophora	Trogloxene	G5	AL, IL	○	○	○
Carychium nannodes G. H. Clapp, 1905	File Thorn	Basommatophora	Trogloxene	G5	IL, TN	○	○	○
Carychium riparium Hubricht, 1978	Floodplain Thorn	Basommatophora	Trogloxene	G2	IL	○	○	○
Carychium stygium Call, 1897	Cave thorn	Basommatophora	Troglobiont	G3	AL, KY, TN	○	72	6
Castor canadensis Kuhl, 1820	American Beaver	Rodentia	Stygoxene	G5 LC	AL, FL, GA, IL, TN	○	○	○
Cathartes aura (Linnaeus, 1758)	Turkey Vulture	Accipitriformes	Trogloxene	G5 LC	GA, IL, TN	○	○	○
Catopocerus alabamae Peck, 1975		Coleoptera	Troglobiont	GNR	AL	○	1	○
Catopocerus appalachianus Peck, 1975		Coleoptera	Troglophile	GNR	AL, TN	○	○	○
Catopocerus jonesi Peck, 1975		Coleoptera	Troglobiont	GNR	AL	○	1	○
Catops gratiosus (Blanchard, F., 1915)		Coleoptera	Troglophile	G5	AL, GA, IA, IL, IN, KY, MA, MD, NY, OH, PA, TN, VA, WV	○	○	○
Catostomus commersonii (Lacepède, 1803)	White Sucker	Cypriniformes	Stygoxene	G5 LC	AL, KY, TN	○	○	○
Cauloxenus stygius Cope, 1872	Northern Cavefish Copepod	Siphonostomatoida	Stygobiont	G1G2	IN, KY	○	○	○
Causeyella causeyae Shear, 2003		Chordeumatida	Troglobiont		AR	○	○	○
Causeyella dendropus (Loomis, 1939)	Causeyella Cave Millipede	Chordeumatida	Troglobiont	G3	AR, MO	○	1	○
Causeyella youngsteadtorum Shear, 2003		Chordeumatida	Troglobiont		AR	○	○	○
Cavaticovelia aaa (Gagne & Howarth, 1975)		Heteroptera	Troglobiont	G1G2 NE	HI	○	8	○
Cavenderia aureostipes (Cavender, Raper & Norberg) S.Baldauf, S.Sheikh & Thulin, 2018		Acytosteliales	Stygophile		GA	○	○	○
Cavernicola pilosa Barber, 1937	Barbeiro	Heteroptera	Trogloxene			○	○	○
Cemophora coccinea (Blumenbach, 1788)	Scarlet Snake	Squamata	Accidental	G5 LC	GA	○	○	○
Centromerus cornupalpis (O. Pickard-Cambridge, 1875)	Eastern Spurred Sheetweaver	Araneae	Troglophile	GNR	AL, IL	○	○	○
Centromerus denticulatus (Emerton, 1909)		Araneae	Troglophile	GNR	AL, GA	○	○	○
Centromerus latidens (Emerton, 1882)		Araneae	Troglophile	G5	AL, FL, GA, IL, KY, MO, TN	○	○	○
Centromerus tennapex (Barrows, 1940)		Araneae	Trogloxene		TN	○	○	○
Centropyxis aculeata (Ehrenberg, 1832) Stein, 1859		Arcellinida	Stygoxene		KY	○	○	○
Ceraticelus fissiceps (O. Pickard-Cambridge, 1874)		Araneae	Troglophile	G5	AL	○	○	○
Ceraticelus minutus (Emerton, 1882)		Araneae	Troglophile	G5		○	○	○
Ceratophysella boletivora (Packard, AS, 1873)	Springtail	Poduromorpha	Trogloxene	GNR	IL	○	○	○
Ceratophysella brevis (Christiansen, K & Bellinger, P, 1980)		Poduromorpha	Trogloxene	GNR	IL	○	○	○
Ceratophysella denticulata Ardanaz, 1986		Poduromorpha	Troglophile		IA, IL, TN	○	○	○
Ceratophysella engadinensis (Gisin, 1949)		Poduromorpha	Trogloxene		IL	○	○	○
Ceratophysella lucifuga (Packard, 1888)	Wyandotte Cave Springtail	Poduromorpha	Troglobiont	GNR	IN, IL	○	2	○
Ceratozetes gracilis (Michael, 1884)		Sarcoptiformes	Troglophile	GNR	IA, KY	○	○	○
Cerobasis guestfalica (Kolbe, 1880)	Book Lice	Psocodea	Trogloxene		KY	○	○	○
Ceuthophilus brevipes Scudder, 1862	Short-Legged Camel Cricket	Orthoptera	Trogloxene	G5		○	○	○
Ceuthophilus carlsbadensis Caudell, 1924		Orthoptera	Trogloxene		NM, TX	○	○	○
Ceuthophilus conicaudus Hubbell, 1936		Orthoptera	Trogloxene		NM	○	○	○
Ceuthophilus elegans Hubbell, 1934		Orthoptera	Trogloxene		IL, MO, WI	○	○	○
Ceuthophilus ensifer Packard, 1881		Orthoptera	Trogloxene		AL, GA, TN	○	○	○
Ceuthophilus gracilipes (Haldeman, 1850)	Slender-Legged Camel Cricket	Orthoptera	Trogloxene	GNR	AL, FL, GA, IL, TN	○	○	○
Ceuthophilus isletae Hubbell, 1936		Orthoptera	Trogloxene		NM	○	○	○
Ceuthophilus latens Scudder, 1862	Black-Sided Camel Cricket	Orthoptera	Trogloxene	GNR	AL, VA	○	○	○
Ceuthophilus latibuli Scudder, 1894		Orthoptera	Trogloxene		FL	○	○	○
Ceuthophilus longipes Caudell, 1924		Orthoptera	Trogloxene	GNR	NM	○	○	○
Ceuthophilus maculatus (Harris, 1835)	Spotted Camel Cricket	Orthoptera	Trogloxene	G5		○	○	○
Ceuthophilus pallidipes Walker, 1905		Orthoptera	Trogloxene		KY	○	○	○
Ceuthophilus palmeri Scudder, 1894		Orthoptera	Trogloxene			○	○	○
Ceuthophilus seclusus Scudder, 1894		Orthoptera	Trogloxene	GNR	IL	○	○	○
Ceuthophilus stygius (Scudder, 1861)	Cave Camel Cricket	Orthoptera	Trogloxene	GNR	AL, IN, KY, TN	○	○	○
Ceuthophilus virgatipes Rehn & Hebard, 1905		Orthoptera	Trogloxene		FL	○	○	○
Ceuthophilus williamsoni Hubbell, 1934		Orthoptera	Trogloxene	GNR	IL	○	○	○
Chaetaspis aleyorum Lewis, 2002	Aley's Cave Milliped	Polydesmida	Troglobiont	G1	MO	○	○	○
Chaetaspis attenuatus Lewis & Slay, 2013		Polydesmida	Troglobiont		AR	○	○	○
Chaetaspis debilis (Causey, 1959)		Polydesmida	Troglobiont		TN	○	○	○
Chaetaspis fragilis (Loomis, 1943)		Polydesmida	Troglobiont	GNR	KY	○	2	○
Chaetaspis mollis (Causey, 1959)		Polydesmida	Troglobiont	G1	TN, AL	○	○	○
Chaetogaster diaphanus (Gruithuisen, 1828)	Aquatic Oligochaete Worm	Tubificida	Stygophile	GNR	SC	○	○	○
Chaoborus albatus Johnson, 1921		Diptera	Trogloxene	GNR		○	○	○
Chauliodes pectinicornis (Linnaeus, 1763)	Summer Fishfly	Megaloptera	Accidental	GNR		○	○	○
Cheiracanthium inclusum (Hentz, 1847)	Yellow Sac Spider	Araneae	Accidental	GNR	AL	○	○	○
Cheiridium reyesi Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Chelydra serpentina (Linnaeus, 1758)	North American Snapping Turtle	Testudines	Accidental	G4 LC	FL, KY	○	○	○
Cherokia georgiana (Bollman, 1889)		Polydesmida	Accidental	G4	GA	○	○	○
Cheumatopsyche minuscula (Banks, 1907)		Trichoptera	Stygoxene	G5		○	○	○
Chilodonella caudata Stokes		Chlamydodontida	Stygoxene		AL	○	○	○
Chinquipellobunus madlae (Goodnight & Goodnight, 1967)		Opiliones	Troglobiont	G4	TX	○	284	○
Chinquipellobunus russelli (Goodnight & Goodnight, 1967)		Opiliones	Troglobiont	G2G3	TX	○	21	○
Chionea scita Walker, 1848		Diptera	Trogloxene	GNR	KY	○	○	○
Chironomus decorus Johannsen, 1905		Diptera	Trogloxene	GNR	GA	○	○	○
Chironomus plumosus (Linnaeus, 1758)	Chironome Plumosus	Diptera	Trogloxene			○	○	○
Chiroptonyssus robustipes (Ewing, 1925)		Mesostigmata	Trogloxene		NM, TX	○	○	○
Chitrella archeri Malcolm & J. C. Chamberlin, 1960		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Chitrella cavicola (Packard, 1884)		Pseudoscorpiones	Troglophile	G3		○	○	○
Chitrella elliotti Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Chitrella major Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Chitrella regina Malcolm & Chamberline, 1960	Royal Syarinid Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	WV	○	○	○
Chitrella superba Muchmore, 1973		Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Chitrella welbourni Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	NM	○	○	○
Chitrellina chiricahuae Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1G2	AZ	○	○	○
Chlaenius aestivus Say, 1823	Summer Harp Ground Beetle	Coleoptera	Accidental	GNR	IL	○	○	○
Chlamydotheca texasiensis Baird, 1862		Podocopida	Stygophile		TX	○	○	○
Choctella cumminsi Chamberlin, 1918		Spirostreptida	Trogloxene		TN	○	○	○
Chrosomus erythrogaster (Rafinesque, 1820)	Southern Redbelly Dace	Cypriniformes	Accidental	G5 LC	AL	○	○	○
Chrysops univittatus Macquart, 1855	One-Striped Deer Fly	Diptera	Accidental	G5	TN	○	○	○
Chthonius cryptus Chamberlin, 1962		Pseudoscorpiones	Troglophile			○	○	○
Chthonius paludis (J. C. Chamberlin, 1929)		Pseudoscorpiones	Troglophile		GA, TN	○	○	○
Cicurina arcata Chamberlin & Ivie, 1940		Araneae	Troglophile	G5	IL	○	○	○
Cicurina arcuata Keyserling, 1887		Araneae	Troglophile	G5	GA, IL, TN	○	○	○
Cicurina bandera Gertsch, 1992		Araneae	Troglobiont	G2G3	TX	○	2	○
Cicurina bandida Gertsch, 1992	Bandit Cave Meshweaver	Araneae	Troglobiont	G2	TX	○	12	○
Cicurina baronia Gertsch, 1992	Robber Baron Cave Meshweaver	Araneae	Troglobiont	G1 ESA	TX	○	12	○
Cicurina barri Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina breviaria Bishop & Crosby, 1926		Araneae	Troglophile		AL, TN	○	○	○
Cicurina brevis (Emerton, 1890)	Small-Eared Meshweaver	Araneae	Troglophile	G5	IL	○	○	○
Cicurina browni Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina brunsi Cokendolpher, 2004		Araneae	Troglobiont		TX	○	4	○
Cicurina bullis Cokendolpher, 2004		Araneae	Troglobiont		TX	○	14	○
Cicurina buwata Chamberlin & Ivie, 1940		Araneae	Troglobiont	G1G2	TX	○	1	107
Cicurina caliga Cokendolpher & Reddell, 2001		Araneae	Troglobiont	GNR	TX	○	8	3
Cicurina cavealis Bishop & Crosby, 1926		Araneae	Troglophile	GNR	IL	○	○	○
Cicurina caverna Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina coryelli Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	5	1
Cicurina delrio Gertsch, 1992		Araneae	Troglobiont		TX	○	○	○
Cicurina ezelli Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	1
Cicurina gruta Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina holsingeri Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina hoodensis Cokendolpher & Reddell, 2001		Araneae	Troglobiont	GNR	TX	○	35	11
Cicurina joya Gertsch, 1992		Araneae	Troglobiont		TX	○	○	○
Cicurina loftini Cokendolpher, 2004		Araneae	Troglobiont		TX	○	○	○
Cicurina machete Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina madla Gertsch, 1992	Madla Cave Meshweaver	Araneae	Troglobiont	G1 ESA	TX	○	23	22
Cicurina mckenziei Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina medina Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina menardia Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina minima Chamberlin & Ivie, 1940		Araneae	Troglophile	GNR	AL	○	○	○
Cicurina mirifica Gertsch, 1992		Araneae	Troglobiont		TX	○	○	○
Cicurina mixmaster Cokendolpher & Reddell, 2001		Araneae	Troglobiont	GNR	TX	○	3	1
Cicurina neovespera Cokendolpher, 2004		Araneae	Troglobiont		TX	○	4	○
Cicurina obscura Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina orellia Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina pablo Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina pallida Keyserling, 1887		Araneae	Troglophile	GNR	GA, IL, IN, KY	○	○	○
Cicurina pastura Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina patei Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina placida Banks, 1892		Araneae	Troglophile	GNR	TN	○	○	○
Cicurina platypus Cokendolpher, 2004		Araneae	Troglobiont		TX	○	1	○
Cicurina porteri Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina puentecilla Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	4	7
Cicurina rainesi Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	2	○
Cicurina reclusa Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina reddelli Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	1
Cicurina russelli Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina sansaba Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina selecta Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina serena Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina sheari Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina sprousei Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	2	○
Cicurina stowersi Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	1	○
Cicurina suttoni Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina travisae Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	11	208
Cicurina troglobia Cokendolpher, 2004		Araneae	Troglobiont	GNR	TX	○	2	○
Cicurina ubicki Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina uvalde Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	2	○
Cicurina varians Gertsch & Mulaik, 1940		Araneae	Troglophile	GNR	NM	○	○	○
Cicurina venefica Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina vespera Gertsch, 1992	Government Canyon Bat Cave Meshweaver	Araneae	Troglobiont	G1 ESA	TX	○	6	○
Cicurina vibora Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	2	4
Cicurina wartoni Gertsch, 1992	Warton Cave Meshweaver	Araneae	Troglobiont	G1	TX	○	○	○
Cicurina watersi Gertsch, 1992		Araneae	Troglobiont	G1G2	TX	○	○	○
Cicurina wiltoni Gertsch, 1992		Araneae	Troglobiont	G1	AL	○	○	○
Cirolanides texensis Benedict, 1896		Isopoda	Stygobiont	G4	TX, Mexico	○	431	130
Cirolanides wassenichae Schwartz et al., 2019		Isopoda	Stygobiont		TX	○	76	38
Cladura flavoferruginea Osten Sacken, 1860		Diptera	Trogloxene	GNR	IN	○	○	○
Cleidogona baroqua Shear, 1972		Chordeumatida	Trogloxene			○	○	○
Cleidogona crucis (Chamberlin, 1942)		Chordeumatida	Trogloxene			○	○	○
Cleidogona crystallina Shear, 1972		Chordeumatida	Trogloxene			○	○	○
Cleidogona hoffmani Shear, 1972		Chordeumatida	Trogloxene	G3	VA	○	○	○
Cleidogona mayapec Shear, 1972		Chordeumatida	Trogloxene			○	○	○
Cleidogona pecki Shear, 1972		Chordeumatida	Trogloxene			○	○	○
Cleidogona unita Causey, 1951		Chordeumatida	Troglophile		IL	○	○	○
Clethrionomys gapperi (Vigors, 1830)		Rodentia	Accidental			○	○	○
Climacia areolaris (Hagen, 1861)		Neuroptera	Accidental	GNR		○	○	○
Coecobrya kukae (Christiansen & Bellinger, 1992)		Entomobryomorpha	Troglobiont	G1G2	HI	○	1	○
Coecobrya lua (Christiansen & Bellinger, 1992)		Entomobryomorpha	Troglobiont	G1G2	HI	○	1	○
Coecobrya nupa (Christiansen & Bellinger, 1992)		Entomobryomorpha	Troglobiont	G1G2	HI	○	1	○
Coecobrya tenebricosa (Folsom, JW, 1902)		Entomobryomorpha	Troglophile	GNR	AL, IL	○	○	○
Colacium vesiculosum Ehrenb.		Euglenales	Stygoxene		KY	○	○	○
Coloradesmus aquiliensis (Shear, 1984)		Polydesmida	Troglobiont	G1G2	CO	○	7	○
Coloradesmus beckleyi Shear & Steinmann, 2019		Polydesmida	Troglobiont		CO	○	2	○
Coloradesmus hopkinsae Shear & Steinmann, 2019		Polydesmida	Troglobiont		CO	○	3	○
Coloradesmus manitou Shear & Steinmann, 2019		Polydesmida	Troglobiont		CO	○	6	○
Coloradesmus warneri Shear & Steinmann, 2019		Polydesmida	Troglobiont		CO	○	7	○
Coluber constrictor Linnaeus, 1758	North American Racer	Squamata	Accidental	G5 LC	FL	○	○	○
Columba livia J. F. Gmelin, 1789	Common Pigeon	Columbiformes	Trogloxene		AR, IL	○	○	○
Columbasellus acheron Lewis et al., 2003		Isopoda	Stygobiont		WA	○	1	○
Colusa illecta (Casey, 1911)		Coleoptera	Troglophile		AL	○	○	○
Comalcandona gibsoni Kulkoyluoglu, 2019	Gibson's Groundwater Ostracod	Podocopida	Stygobiont		TX	○	○	○
Comalcandona mixoni Kulkoyluoglu et al., 2019		Podocopida	Stygobiont		TX	○	○	○
Comalcandona tressleri Kulkoyluoglu & Gibson, 2018		Podocopida	Stygobiont		TX	○	○	○
Comaldessus stygius Spangler & Barr, 1995	Comal Springs Diving Beetle	Coleoptera	Stygobiont	G1	TX	○	3	3
Conasellus burkensis (Lewis & Lewis, 2021)		Isopoda	Stygobiont	GNR	VA	○	○	○
Conasellus communis (Say, 1818)	Eastern Waterslater	Isopoda	Stygoxene		NY	○	○	○
Conasellus forbesi (Williams, 1970)	Forbes' Waterslater	Isopoda	Stygoxene		TN	○	○	○
Conasellus jeffersoni (Lewis, 2009)		Isopoda	Stygobiont		VA	○	○	○
Conasellus kenki (Bowman, 1967)		Isopoda	Stygobiont	G3	DC, MD, PA, VA	○	○	○
Conasellus phreaticus (Lewis & Holsinger, 1985)		Isopoda	Stygobiont	G2G3	VA	○	○	○
Conasellus pricei (Levi, 1949)	Price's Cave Isopod	Isopoda	Stygobiont	G5	MD, PA, VA, WV	○	○	○
Conasellus washingtoni Lewis & Lewis, 2023		Isopoda	Stygobiont		DC	○	○	○
Condeicampa langei Ferguson, 1996		Rhabdura	Troglobiont	GNR	TN	○	○	○
Conicera similis Haliday, 1833		Diptera	Trogloxene		AL	○	○	○
Conosoma velocipes Casey, 1895		Coleoptera	Accidental			○	○	○
Conotyla blakei (Verhoeff, 1932)		Chordeumatida	Troglophile	G4	MD, PA	○	○	○
Conotyla bollmani (McNeill, 1887)	Bollman's Cave Millipede	Chordeumatida	Troglobiont	G3	IN	○	1	○
Conotyla vista Shear, 1971		Chordeumatida	Troglobiont	GH	WV	○	1	○
Copestylum vesicularium (Curran, 1947)	Iridescent Bromeliad Fly	Diptera	Accidental	G5	GA	○	○	○
Coquillettidia perturbans (Walker, 1856)	Cattail Mosquito	Diptera	Trogloxene	G5		○	○	○
Coragyps atratus (Bechstein, 1793)	Black Vulture	Accipitriformes	Trogloxene	G5 LC	AL, FL	○	○	○
Coras juvenilis (Keyserling, 1881)		Araneae	Troglophile	GNR	GA, KY	○	○	○
Coras lamellosus (Keyserling, 1887)		Araneae	Troglophile	GNR	AL, IL	○	○	○
Coras taugynus Chamberlin, 1925		Araneae	Troglophile		TN	○	○	○
Corbicula fluminea (O. F. Müller, 1774)	Asian Basket Clam	Venerida	Stygoxene	G5 LC	AL, FL	○	○	○
Cordylophora caspia (Pallas, 1771)	Ponto-Caspian Freshwater Hydroid	Anthoathecata	Stygoxene	GNR	FL	○	○	○
Corydalus cornutus (Linnaeus, 1758)	Dobsonfly	Megaloptera	Accidental	GNR	GA	○	○	○
Corynorhinus rafinesquii (Lesson, 1827)	Eastern Big-Eared Bat	Chiroptera	Trogloxene	G3 LC	AL, AR, GA, IN, KY, NC, TN	○	○	○
Corynorhinus townsendii (Cooper, 1837)	Pacific Townsend's Big-Eared Bat	Chiroptera	Trogloxene	G4 LC	AR, KY, OK, PA	○	○	○
Cottus bairdii Girard, 1850	Mottled Sculpin	Scorpaeniformes	Stygophile	G5 LC	AL, GA, KY, TN	○	○	○
Cottus carolinae (Gill, 1861)	Banded Sculpin	Scorpaeniformes	Stygophile	G5 LC	AL, GA, IL, KY, OK, TN	○	○	○
Cottus specus Adams et al. 2013	Grotto sculpin	Scorpaeniformes	Stygobiont	G2 ESA	MO	○	10	21
Crangonyx anomalus Hubricht, 1943	Large Male Crangonyctid	Amphipoda	Stygophile	G4	IL, IN, OH	○	○	○
Crangonyx antennatus Packard, 1881	Appalachian Valley crangonyctid	Amphipoda	Stygobiont	G5	AL, GA, TN, VA	○	222	1
Crangonyx baculispina Zhang & Holsinger, 2003	Lancaster County Amphipod	Amphipoda	Stygoxene	G1	VA	○	○	○
Crangonyx barri Zhang & Holsinger, 2003	Barr's Cave Amphipod	Amphipoda	Stygobiont	G5	IN, KY	○	141	○
Crangonyx bousfieldi Zhang & Holsinger, 2003		Amphipoda	Stygophile	G2	OH	○	○	○
Crangonyx caecus Zhang & Holsinger, 2003		Amphipoda	Stygobiont	G1	KY	○	19	○
Crangonyx castellanum Zhang & Holsinger, 2003		Amphipoda	Stygobiont	G1	KY	○	13	○
Crangonyx consimilis Zhang & Holsinger, 2003		Amphipoda	Stygoxene	G4	AL, GA, TN	○	○	○
Crangonyx cooperi Zhang & Holsinger, 2003		Amphipoda	Stygophile	G2	AL	○	○	○
Crangonyx dearolfi Shoemaker, 1942	Pennsylvania Cave Amphipod	Amphipoda	Stygobiont	G2 EN	MD, PA	○	14	○
Crangonyx floridanus Bousfield, 1963	Florida Crangonyctid	Amphipoda	Stygophile	G5	AL, FL, KY, MO, NC, PA, SC, TN	○	○	○
Crangonyx forbesi (Hubricht & Mackin, 1940)	Forbes Crangonyctid	Amphipoda	Stygophile	G5	IL, IN, KY, MO, OH, OK	○	○	○
Crangonyx gracilis S.I. Smith, 1871	Northern Lake Crangonyctid	Amphipoda	Stygophile	G4	IN, KY, WV	○	○	○
Crangonyx grandimanus Bousfield, 1963	Florida Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	FL	○	67	13
Crangonyx hobbsi Shoemaker, 1941	Hobb's Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	FL	○	80	146
Crangonyx indianensis Zhang & Holsinger, 2003	Indiana Cave Amphipod	Amphipoda	Stygobiont	G3	IN	○	33	○
Crangonyx insolitus Zhang & Holsinger, 2003		Amphipoda	Stygophile	G1	MO	○	○	○
Crangonyx lewisi Zhang & Holsinger, 2003	Lewis' Cave Amphipod	Amphipoda	Stygobiont	G2	IN, KY	○	15	○
Crangonyx longidactylus Zhang & Holsinger, 2003		Amphipoda	Stygoxene	G2	KY	○	○	○
Crangonyx manubrium Cannizzaro & Sawicki in Cannizzaro, Balding, Lazo-Wasem & Sawicki, 2019	Jackson County Cave Amphipod	Amphipoda	Stygobiont	G1G2	FL	○	32	123
Crangonyx minor Bousfield, 1958	Small Stream Crangonyctid	Amphipoda	Stygoxene	G5	IL	○	○	○
Crangonyx montanus Zhang & Holsinger, 2003		Amphipoda	Stygoxene	G2	WV	○	○	○
Crangonyx obliquus (Hubricht & Mackin, 1940)	Oblique-Hand Crangonyctid	Amphipoda	Stygophile	G5	AR	○	○	○
Crangonyx ohioensis Zhang & Holsinger, 2003	Ohio Cave Amphipod	Amphipoda	Stygobiont	G1G2	IN, KY, OH	○	32	○
Crangonyx packardi Smith, 1888	Packard's Cave Amphipod	Amphipoda	Stygobiont	G4	IL, IN, KS, KY, MO	○	103	○
Crangonyx palustris Zhang & Holsinger, 2003		Amphipoda	Stygoxene	G4	NC	○	○	○
Crangonyx parhobbsi Cannizzaro & Sawicki in Cannizzaro, Balding, Lazo-Wasem & Sawicki, 2020	Florida Big Bend Cave Amphipod	Amphipoda	Stygobiont	G1G2	FL, GA	○	13	89
Crangonyx pseudogracilis Bousfield, 1958	Northern River Crangonyctid	Amphipoda	Stygoxene	G5	KY	○	○	○
Crangonyx richmondensis Ellis, 1941	Alpine Lake Crangonyctid	Amphipoda	Stygoxene	G5	AK, FL	○	○	○
Crangonyx rivularis Bousfield, 1958	Ontario Stream Crangonyctid	Amphipoda	Stygoxene	G5	KY	○	○	○
Crangonyx setodactylus Bousfield, 1958	Hairy-Fingered Crangonyctid	Amphipoda	Stygoxene	G5	OH	○	○	○
Crangonyx shoemakeri (Hubricht & Mackin, 1940)	Shoemaker Crangonyctid	Amphipoda	Stygophile	G5	IA, IL, IN, MI, OH, VA	○	○	○
Crangonyx specus Zhang & Holsinger, 2003		Amphipoda	Stygobiont	G1	KY	○	23	○
Crangonyx sulphurium Sawicki & Holsinger, 2017	Sulphurous Cave Amphipod	Amphipoda	Stygobiont	G1	FL	○	6	○
Creaserinus fodiens (Cottle, 1863)	Digger Crayfish	Decapoda	Accidental	G5	IL	○	○	○
Creophilus maxillosus (Linnaeus, 1758)	Hairy Rove Beetle	Coleoptera	Troglophile		GA	○	○	○
Crosbycus goodnighti Roewer, 1951		Opiliones	Troglophile		VA	○	○	○
Crosbyella distincta Goodnight & Goodnight, 1942		Opiliones	Troglobiont	G1G2	AR	○	○	○
Crosbyella roeweri Goodnight & Goodnight, 1967		Opiliones	Troglobiont	G1G2	AR	○	○	○
Crosbyella spinturnix (Crosby & Bishop, 1924)		Opiliones	Troglophile	GNR	AL, AR, FL, GA	○	○	○
Crotalus adamanteus Palisot de Beauvois, 1799	Eastern Diamond-Backed Rattlesnake	Squamata	Accidental	G3 LC	FL	○	○	○
Crotalus horridus Linnaeus, 1758	Timber Rattlesnake	Squamata	Accidental	G4 LC	TN	○	○	○
Cryptachaea porteri (Banks, 1896)	Cobweb Spiders	Araneae	Troglophile	GNR	AL, GA, IN, NM, TN	○	○	○
Cryptachaea rupicola (Emerton, 1882)		Araneae	Troglophile	GNR	AL, IL	○	○	○
Cryptobranchus alleganiensis (Sonnini de Manoncourt & Latreille, 1801)	Hellbender	Caudata	Accidental	G3 VU	AL	○	○	○
Cryptocreagris destica Harvey & Muchmore, 2010		Pseudoscorpiones	Troglobiont		CO	○	3	○
Cryptocreagris steinmanni Harvey & Muchmore, 2010		Pseudoscorpiones	Troglobiont		CO	○	3	○
Cryptophagus valens Casey, 1900		Coleoptera	Trogloxene	GNR	IL	○	○	○
Ctenophthalmus pseudagyrtes Baker, 1904		Siphonaptera	Trogloxene	GNR	AL, GA, TN	○	○	○
Ctenus captiosus Gertsch, 1935	Florida False Wolf Spider	Araneae	Trogloxene		FL	○	○	○
Culex erraticus (Dyar & Knab, 1906)		Diptera	Trogloxene	GNR	TN	○	○	○
Culex pipiens Linnaeus, 1758	Northern House Mosquito	Diptera	Trogloxene	G5	IL, IN, TN	○	○	○
Culex restuans Theobald, 1901	White-Dotted Mosquito	Diptera	Trogloxene	G5	TN	○	○	○
Culex territans Walker, 1856	Northern Frog-Biting Mosquito	Diptera	Trogloxene	G5	GA	○	○	○
Culicoides paraensis (Goeldi, 1905)		Diptera	Trogloxene		TN	○	○	○
Culiseta impatiens (Walker, 1848)	Impatient Mosquito	Diptera	Trogloxene	G5		○	○	○
Cybaeopsis pantopla (Bishop & Crosby, 1935)		Araneae	Trogloxene	G3	TN	○	○	○
Cybaeopsis tibialis (Emerton, 1888)		Araneae	Trogloxene	GNR		○	○	○
Cybaeus giganteus Banks, 1892		Araneae	Accidental	GNR	KY, TN	○	○	○
Cybaeus patritus Bishop & Crosby, 1926		Araneae	Trogloxene		TN	○	○	○
Cyclidium glaucoma Schewiakoff, 1889		Pleuronematida	Stygoxene		AL	○	○	○
Cyclocosmia truncata (Hentz, 1841)	Ravine Trapdoor Spider	Araneae	Trogloxene	GNR	GA	○	○	○
Cyclocypris sharpei Furtos, 1933		Podocopida	Stygoxene	GNR	TN	○	○	○
Cyclops cavernarum Ulrich, 1902		Cyclopoida	Stygobiont	GNR	TX	○	○	○
Cyclops learii Ulrich, 1902		Cyclopoida	Stygobiont		TX	○	○	○
Cyclosa conica (Pallas, 1772)	Cone-Shaped Orbweaver	Araneae	Accidental	G5		○	○	○
Cyclotrachelus fucatus (Freitag, 1969)		Coleoptera	Accidental	GNR	IL	○	○	○
Cyclotrachelus sodalis (LeConte, 1846)	Blue-Tinged Harp Ground Beetle	Coleoptera	Accidental	GNR	IL	○	○	○
Cylindrodesmus hirsutus Pocock, 1889		Polydesmida	Trogloxene			○	○	○
Cylindroiulus arborum Verhoeff, 1928		Julida	Trogloxene		IN	○	○	○
Cylisticus convexus (De Geer, 1778)	Curly Woodlouse	Isopoda	Troglophile	G5	AL, GA, IL, IN, KY, TN, VA	○	○	○
Cyllopsis gemma (Hübner, 1809)	Gemmed Satyr	Lepidoptera	Accidental	G5	TN	○	○	○
Cyphoderus inaequalis Folsom, JW, 1927		Entomobryomorpha	Troglophile			○	○	○
Cyphoderus similis Denis, 1931		Entomobryomorpha	Troglophile			○	○	○
Cypria lacrima Kulkoyluoglu et al., 2017		Podocopida	Stygobiont	GNR	TX	○	○	○
Cypridopsis vidua (Müller, 1776)	Cypris Veuve (La)	Podocopida	Stygophile	GNR	TX	○	○	○
Cyprinella spiloptera (Cope, 1867)	Spotfin Shiner	Cypriniformes	Accidental	G5 LC	AL, KY	○	○	○
Cyprinodon diabolis Wales, 1930	Devil's Hole Pupfish	Cyprinodontiformes	Stygoxene	G1 CR	NV	○	○	○
Cyprinus carpio Linnaeus, 1758	Eurasian Carp	Cypriniformes	Accidental	G5 LC	AL	○	○	○
Cyrtodesmus archimedes (Chamberlin, 1940)		Polydesmida	Troglophile			○	○	○
Dactylocythere arcuata (C. W. Hart & Hobbs, 1961)		Podocopida	Stygophile	G1	AL	○	○	○
Dactylocythere prionata (C. W. Hart & Hobbs, 1961)		Podocopida	Stygophile	G2	KY	○	○	○
Dactylocythere steevesi (C. W. Hart & Hobbs, 1961)		Podocopida	Stygophile	G4	AL, KY, TN	○	○	○
Dactylocythere ungulata (C. W. Hart & Hobbs, 1961)		Podocopida	Stygophile		KY, TN	○	○	○
Dactylolabis hudsonica Alexander, 1931		Diptera	Trogloxene	GNR		○	○	○
Dactylolabis montana (Osten Sacken, 1860)		Diptera	Trogloxene	GNR	MO	○	○	○
Darlingtonea kentuckensis Valentine, 1952		Coleoptera	Troglobiont	G3G4	KY, TN	○	15	88
Darwinula stevensoni (Brady & Robertson, 1870)		Podocopida	Stygophile		TX	○	○	○
Dasycerus nikwasi Caterino & Harden, 2024		Coleoptera	Trogloxene	GNR	AL	○	○	○
Dasypus novemcinctus Linnaeus, 1758	Nine-Banded Armadillo	Cingulata	Accidental	G5 LC	FL	○	○	○
Dasyscias franzi F. G. Thompson & Hershler, 1991	Shaggy ghostsnail	Littorinimorpha	Stygobiont	G1	FL	○	8	○
Demogorgonichthys arcanus Hart, Niemiller, Sandel & Armbruster, 2026	Demon Cavefish	Percopsiformes	Stygobiont		AL	○	○	○
Dendrobaena octaedra (Savigny in Cuvier, 1826)	Octagonal-Tail Worm	Crassiclitellata	Troglophile	GNR	GA, NC, VA	○	○	○
Dendrocoelopsis americana (Hyman, 1939)		Tricladida	Stygobiont	G3	AR, MO, OK, TX, MD	○	30	○
Dendrocoelopsis hymanae Kawakatsu, 1968	Lake Tahoe planarian	Tricladida	Stygobiont	GNR	CA, NV	○	3	○
Dendronucleata americana Moravec & Huffman, 2000		Neoechinorhynchida	Stygobiont		TX	○	2	○
Dermacentor variabilis Say, 1821	American Dog Tick	Ixodida	Accidental		GA, IL	○	○	○
Deroceras laeve (O. F. Müller, 1774)	Meadow Slug	Stylommatophora	Trogloxene		IL	○	○	○
Deroceras reticulatum (O. F. Müller, 1774)	Gray Fieldslug	Stylommatophora	Trogloxene			○	○	○
Derops divalis (Sanderson, 1947)		Coleoptera	Troglophile	GNR	IL	○	○	○
Desmognathus abditus Anderson & Tilley, 2003	Cumberland Dusky Salamander	Caudata	Accidental	G2 VU		○	○	○
Desmognathus brimleyorum Stejneger, 1895	Ouachita Dusky Salamander	Caudata	Trogloxene	G3 LC		○	○	○
Desmognathus conanti Rossman, 1958	Spotted Dusky Salamander	Caudata	Trogloxene	G4 LC	AL, GA, TN	○	○	○
Desmognathus fuscus (Green, 1818)	Northern Dusky Salamander	Caudata	Trogloxene		KY, OH	○	○	○
Desmognathus gvnigeusgwotli Pyron & Beamer, 2022	Cherokee Blackbelly Salamander	Caudata	Accidental	G3	TN	○	○	○
Desmognathus monticola Dunn, 1916	Seal Salamander	Caudata	Trogloxene	G5 LC	AL, KY	○	○	○
Desmognathus ocoee Nicholls, 1949	Ocoee Salamander	Caudata	Accidental	G4 LC	AL, GA	○	○	○
Desoria trispinata (Mac Gillivray, 1896)		Entomobryomorpha	Troglophile	GNR	IL, TN	○	○	○
Desoria truncata Waltz & Hart, 1995		Entomobryomorpha	Troglophile	GNR	TN	○	○	○
Desoria violacea (Tullberg, T, 1877)		Entomobryomorpha	Trogloxene	GNR		○	○	○
Deuteraphorura jana (Christiansen, K & Bellinger, P, 1980)		Poduromorpha	Troglophile		AL	○	○	○
Diacyclops alabamensis Reid, 1992		Cyclopoida	Stygobiont		AL	○	2	○
Diacyclops bicuspidatus (Claus, 1857)	Damhops	Cyclopoida	Stygophile	GNR	IN, KY	○	○	○
Diacyclops chrisae Reid, 1992		Cyclopoida	Stygobiont		MD, GA, IN	○	5	○
Diacyclops clandestinus (Kiefer, 1926)		Cyclopoida	Stygophile		IL, MO, TN	○	○	○
Diacyclops conversus Reid, 2004	Blue River Groundwater Copepod	Cyclopoida	Stygobiont	G2	IN	○	3	○
Diacyclops crassicaudis (Sars G.O., 1863)	Kompakthops	Cyclopoida	Stygoxene	GNR	IN	○	○	○
Diacyclops indianensis Reid, 2004	Indiana Groundwater Copepod	Cyclopoida	Stygobiont	G2	IN, TN	○	○	○
Diacyclops jeanneli (Chappuis, 1929)		Cyclopoida	Stygobiont	G1G2	IN, NC	○	6	○
Diacyclops lewisi Reid, 2004	Lewis' Groundwater Copepod	Cyclopoida	Stygobiont	G1	IN	○	○	○
Diacyclops navus (Herrick, 1882)		Cyclopoida	Stygoxene	GNR	IN	○	○	○
Diacyclops nearcticus (Kiefer, 1934)		Cyclopoida	Stygophile	G3	IN, KY, TN	○	○	○
Diacyclops nikolasarburni Suarez-Morales et al., 2013		Cyclopoida	Stygobiont		NM	○	4	○
Diacyclops salisae Reid, 2004	Salisa's Groundwater Copepod	Cyclopoida	Stygobiont	G1	IN	○	○	○
Diacyclops sororum Reid, 1992		Cyclopoida	Stygophile	GNR	IN, KY	○	○	○
Diacyclops yeatmani Reid, 1988	Yeatman's Groundwater Copepod	Cyclopoida	Stygobiont	G2G3	IL, IN, MO, OK, TN	○	5	○
Diadophis punctatus (Linnaeus, 1766)	Ring-Necked Snake	Squamata	Accidental	G5 LC	AL, AR, GA, KY	○	○	○
Dichogaster affinis (Michaelsen, 1890)	Earthworm	Crassiclitellata	Troglophile			○	○	○
Dichogaster bolaui (Michaelsen, 1891)	Earthworm	Crassiclitellata	Troglophile			○	○	○
Dicranomyia humidicola Osten Sacken, 1860		Diptera	Trogloxene	GNR	KY	○	○	○
Dicranomyia stulta Osten Sacken, 1860		Diptera	Trogloxene	GNR		○	○	○
Dicranota flaveola (Osten Sacken, 1869)		Diptera	Trogloxene	GNR		○	○	○
Dicrotendipes neomodestus (Malloch, 1915)		Diptera	Trogloxene	GNR		○	○	○
Dictyostelium giganteum B.N.Singh, 1947		Dictyosteliales	Stygophile		GA	○	○	○
Dictyostelium mucoroides Bref., 1870		Dictyosteliales	Stygophile		GA	○	○	○
Dictyostelium purpureum Olive, 1901		Dictyosteliales	Stygophile		GA	○	○	○
Dictyostelium sphaerocephalum (Oudem.) Sacc. & Marchal, 1885		Dictyosteliales	Stygophile		GA	○	○	○
Didelphis virginiana Kerr, 1792	Virginia Opossum	Didelphimorphia	Trogloxene	G5 LC	AL, AR, GA, OK	○	○	○
Difflugia globulosa Dujardin		Arcellinida	Stygoxene		KY	○	○	○
Dineutus assimilis (W. Kirby, 1837)		Coleoptera	Stygoxene	G5	MO	○	○	○
Dinocheirus astutus Hoff, 1956		Pseudoscorpiones	Troglophile		NM	○	○	○
Dinocheirus cavicola Muchmore, 1992		Pseudoscorpiones	Troglobiont	G2G3	TX	○	○	○
Diplectrona marianae Reeves in Reeves & Paysen, 1999		Trichoptera	Stygoxene	G1	GA	○	○	○
Diplocardia caroliniana Eisen, 1899		Crassiclitellata	Troglophile		AL, NC	○	○	○
Diplocardia singularis (Ude, 1893)		Crassiclitellata	Troglophile	GNR	IL	○	○	○
Diplocardia verrucosa Ude, 1895		Crassiclitellata	Troglophile		MO	○	○	○
Discourella dubiosa (Schweizer, 1961)		Mesostigmata	Trogloxene		IL	○	○	○
Discus catskillensis (Pilsbry, 1898)	Angular Disc	Stylommatophora	Trogloxene	G5		○	○	○
Discus macclintocki (F. C. Baker, 1928)	Iowa Pleistocene Snail	Stylommatophora	Trogloxene	G1 LC	IA	○	○	○
Discus nigrimontanus (Pilsbry, 1924)	Black Mountain Disc	Stylommatophora	Trogloxene	G4	TN	○	○	○
Discus patulus (Deshayes, 1832)	Domed Disc	Stylommatophora	Trogloxene	G5	AL, KY, TN	○	○	○
Discus whitneyi (Newcomb, 1864)	Forest Disc	Stylommatophora	Trogloxene			○	○	○
Dissochaetus oblitus (LeConte, J. L., 1853)		Coleoptera	Troglophile	GNR	TN	○	○	○
Docosia paradichroa Fisher, 1937		Diptera	Troglophile			○	○	○
Dohrniphora perplexa (Brues, 1904)		Diptera	Trogloxene	GNR	AL	○	○	○
Dolichopeza dorsalis (Johnson, 1909)		Diptera	Trogloxene	GNR		○	○	○
Dolichopeza tridenticulata Alexander, 1931		Diptera	Trogloxene	GNR	GA	○	○	○
Dolichopeza venosa (Johnson, 1909)		Diptera	Trogloxene	GNR		○	○	○
Dolichopeza walleyi (Alexander, 1931)		Diptera	Trogloxene	GNR	GA	○	○	○
Dolichopus fulvipes Loew, 1862		Diptera	Trogloxene	GNR		○	○	○
Dolichopus penicillatus Van Duzee, 1921		Diptera	Trogloxene	GNR		○	○	○
Dolomedes scriptus Hentz, 1845	Dock Spider	Araneae	Trogloxene	G5	IL, IN, KY, TN	○	○	○
Dolomedes tenebrosus Hentz, 1844	Dark Fishing Spider	Araneae	Trogloxene	G5	IL, KY, OK	○	○	○
Dolomedes vittatus Walckenaer, 1837	Banded Fishing Spider	Araneae	Trogloxene	GNR	AL, IL, TN	○	○	○
Donnaldsoncythere hiwasseensis (Hobbs & Walton, 1961)		Podocopida	Stygophile		KY	○	○	○
Donnaldsoncythere tuberosa (C. W. Hart & Hobbs, 1961)		Podocopida	Stygophile	G2	TN	○	○	○
Dorosoma cepedianum (Lesueur, 1818)	American Gizzard Shad	Clupeiformes	Stygoxene	G5 LC	AL, KY	○	○	○
Dorypteryx domestica (Smithers, 1958)	Cave Barklouse	Psocodea	Trogloxene		KY	○	○	○
Drosophila funebris (Fabricius, 1787)	Azijnvlieg	Diptera	Trogloxene	GNR		○	○	○
Dryobius sexnotatus Linsley, 1957	Maple Dryobius	Coleoptera	Accidental	GNR NE	KY	○	○	○
Dryomyza anilis Fallén, 1820	Hooded Dryomyza	Diptera	Trogloxene	GNR		○	○	○
Dryophytes chrysoscelis (Cope, 1880)	Cope's Gray Treefrog	Anura	Accidental	G5 LC	AL, GA, TN	○	○	○
Dryophytes cinereus (Schneider, 1799)	Green Treefrog	Anura	Accidental	G5 LC	FL, KY	○	○	○
Dryophytes gratiosus (LeConte, 1856)	Barking Treefrog	Anura	Accidental	G5 LC	FL, GA	○	○	○
Dryophytes squirellus (Daudin, 1800)	Squirrel Treefrog	Anura	Accidental	G5 LC	FL	○	○	○
Dryophytes versicolor (LeConte, 1825)	Gray Treefrog	Anura	Accidental	G5 LC	AR	○	○	○
Dugesia tigrina (Girard, 1850)		Tricladida	Stygoxene			○	○	○
Duvalius jureceki (Dodero, 1917)		Coleoptera	Troglophile			○	○	○
Duvalius lombardii Straneo, 1939		Coleoptera	Troglophile			○	○	○
Eclipidrilus palustris (Smith, 1900)	Aquatic Oligochaete Worm	Lumbriculida	Stygoxene		TX	○	○	○
Eidmannella bullata Gertsch, 1984		Araneae	Troglobiont	G1G2	TX	○	1	○
Eidmannella delicata Gertsch, 1984		Araneae	Troglobiont	G1G2	TX	○	○	○
Eidmannella nasuta Gertsch, 1984		Araneae	Troglobiont	G1G2	TX	○	○	○
Eidmannella pallida (Emerton, 1875)	Pallid Cave Spider	Araneae	Troglophile	GNR	AL, AR, AZ, FL, GA, HI, IA, IL, IN, KY, MD, NM, OH, OK, PA, SC, TN, TX, VA, WV	○	○	○
Eidmannella reclusa Gertsch, 1984		Araneae	Troglobiont	G1G2	TX	○	13	○
Eidmannella rostrata Gertsch, 1984		Araneae	Troglobiont	G4	TX	○	262	○
Eidmannella tuckeri Cokendolpher & Reddell, 2001		Araneae	Troglobiont	GNR	TX	○	1	○
Eisenia fetida (Savigny in Cuvier, 1826)	Brandling	Crassiclitellata	Troglophile	GNR	KY	○	○	○
Eisenia rosea (Savigny in Cuvier, 1826)		Crassiclitellata	Troglophile		IL	○	○	○
Eiseniella tetraedra (Savigny in Cuvier, 1826)	Square-Tailed Worm	Crassiclitellata	Troglophile		IA, VA, WV	○	○	○
Eisenoides carolinensis (Michaelsen, 1910)	Carolina Worm	Crassiclitellata	Troglophile	GNR	IL	○	○	○
Eisenoides lonnbergi (Michaelsen, 1894)		Crassiclitellata	Troglophile		NC	○	○	○
Elaphoidella bidens (Schmeil, 1893)		Harpacticoida	Stygoxene		GA	○	○	○
Elaphropus ferrugineus (Dejean, 1831)		Coleoptera	Troglophile		AL, GA	○	○	○
Elaphropus incurvus (Say, 1830)		Coleoptera	Trogloxene	G5	IL	○	○	○
Elaver excepta (L. Koch, 1866)	White Sac Spider	Araneae	Trogloxene	G5	GA	○	○	○
Eleodes eschscholtzii Solier, 1848	Pinacate De Eschscholtz	Coleoptera	Trogloxene		NM	○	○	○
Eleodes microps Aalbu et al., 2012		Coleoptera	Troglobiont		CA	○	12	5
Eleutherodactylus planirostris (Cope, 1862)	Greenhouse Frog	Anura	Trogloxene	G5 LC	FL	○	○	○
Elimia athearni (Clench & R. D. Turner, 1956)	Knobby Elimia	Cerithiida	Accidental	G3 LC	FL	○	○	○
Elimia clenchi (Goodrich, 1924)	Slackwater Elimia	Cerithiida	Stygoxene	G3 LC	FL	○	○	○
Elimia comalensis (Pilsbry, 1890)	Balcones Elimia	Cerithiida	Stygophile	G2	TX	○	○	○
Elimia curvicostata (Reeve, 1861)		Cerithiida	Stygoxene		FL	○	○	○
Elimia proxima (Say, 1825)	Sprite Elimia	Cerithiida	Stygoxene	G5 LC	GA	○	○	○
Elliotta howarthi (Elliott, 1976)		Actinedida	Troglobiont	G1G2	WA	○	○	○
Emblyna florens (Ivie & Barrows, 1935)		Araneae	Accidental		AL	○	○	○
Empherozoster antaeus Crabill, 1959		Geophilomorpha	Troglophile		NM	○	○	○
Enoplognatha ovata (Clerck, 1757)	Common Candy-Striped Spider	Araneae	Accidental	GNR		○	○	○
Enterobryus oxidi Lichtw., 1961		Eccrinales	Stygoxene		GA	○	○	○
Entomobrya bicolor Guthrie, JE, 1903		Entomobryomorpha	Accidental	GNR	IA	○	○	○
Entomobrya confusa Christiansen, K, 1958		Entomobryomorpha	Accidental	GNR	IA	○	○	○
Entomobrya intermedia Brook, G, 1884		Entomobryomorpha	Trogloxene	GNR	IL	○	○	○
Entomobrya nivalis Christiansen, K, 1958		Entomobryomorpha	Trogloxene			○	○	○
Entomobrya troglodytes Christiansen, 1958		Entomobryomorpha	Troglobiont	G2G3	CO, SD	○	○	○
Entomobryoides purpurascens (Packard, AS, 1872)	Springtail	Entomobryomorpha	Troglophile	GNR	NM	○	○	○
Ephemera simulans Walker, 1853	Brown Drake	Ephemeroptera	Stygoxene	G4		○	○	○
Ephippiochthonius tetrachelatus (Preyssler, 1790)	Dimple-Clawed Chthonid	Pseudoscorpiones	Troglophile		AL, IL	○	○	○
Ephippiochthonius virginicus (J. C. Chamberlin, 1929)		Pseudoscorpiones	Troglophile		GA	○	○	○
Epicharis rustica (Olivier, 1789)		Hymenoptera	Accidental			○	○	○
Epitedia cavernicola Traub, 1957		Siphonaptera	Trogloxene		VA	○	○	○
Epitedia wenmanni (Rothschild, 1904)	Deermice Flea	Siphonaptera	Trogloxene	GNR	KY, TN	○	○	○
Eptesicus fuscus (Palisot de Beauvois, 1796)	Big Brown Bat	Chiroptera	Trogloxene	G5 LC	AL, AR, GA, IL, IN, KY, OK, PA, TN, VA	○	○	○
Equus caballus Linnaeus, 1758	Domestic Horse	Perissodactyla	Accidental	GNA	FL	○	○	○
Erebomaster flavescens Cope, 1872	Golden Cave Harvestman	Opiliones	Troglophile	G3	IN, KY	○	○	○
Ereboporus naturaconservatus Miller et al., 2019	Nature Conservancy Diving Beetle	Coleoptera	Stygobiont	GNR	TX	○	1	8
Eremidrilus allegheniensis (Cook, 1971)		Lumbriculida	Stygobiont	G1G2	TN	○	3	○
Eremidrilus coyote Fend & Rodriguez, 2003		Lumbriculida	Stygobiont		CA	○	19	8
Eremidrilus elegans Fend & Rodriguez, 2003		Lumbriculida	Stygobiont		CA	○	20	○
Eremidrilus felini Fend & Rodriguez, 2003		Lumbriculida	Stygobiont		CA	○	28	○
Eremidrilus parvitheca Fend, 2023		Lumbriculida	Stygobiont		TX	○	6	○
Eremidrilus ritocsi Fend & Rodriguez, 2003		Lumbriculida	Stygobiont		CA	○	10	○
Eremidrilus samacos Fend, 2023		Lumbriculida	Stygobiont		TX	○	8	○
Erethizon dorsatum (Linnaeus, 1758)		Rodentia	Trogloxene		KY	○	○	○
Ergodesmus remingtoni (Hoffman, 1962)		Polydesmida	Troglobiont	G3	IL	○	1	○
Erichsonius nanus (Horn, 1884)		Coleoptera	Trogloxene	G5	IL	○	○	○
Erichsonius patella (Horn, 1884)	Kneecap Rove Beetle	Coleoptera	Trogloxene	GNR	AL	○	○	○
Erigone autumnalis Emerton, 1882	Autumn Money Spider	Araneae	Troglophile	GNR	IA, IL	○	○	○
Erigone infernalis Keyserling, 1886		Araneae	Troglophile	GNR	IN, KY	○	○	○
Erigone stygius Gertsch, 1973		Araneae	Troglobiont	G1G2	HI	○	○	○
Erpobdella dubia (Moore & Meyer, 1951)		Arhynchobdellida	Stygoxene			○	○	○
Etheostoma artesiae (Hay, 1881)	Redspot Darter	Perciformes	Accidental	G5 LC	AL	○	○	○
Etheostoma caeruleum Storer, 1845	Rainbow Darter	Perciformes	Accidental	G5 LC	AL, KY	○	○	○
Etheostoma duryi Henshall, 1889	Black Darter	Perciformes	Accidental	G4 LC	AL, TN	○	○	○
Etheostoma flabellare Rafinesque, 1819	Fantail Darter	Perciformes	Accidental	G5 LC	AL	○	○	○
Etheostoma swaini (Jordan, 1884)	Gulf Darter	Perciformes	Accidental	G5 LC	FL	○	○	○
Ethopolys bipunctatus Wood (1862)		Lithobiomorpha	Trogloxene		UT	○	○	○
Euborellia annulipes (Lucas, 1847)	Ring-Legged Earwig	Dermaptera	Trogloxene	GNR	AL	○	○	○
Euborellia antoni Hebard, 1917		Dermaptera	Trogloxene			○	○	○
Eucyclops agilis (Koch, 1838)		Cyclopoida	Stygophile	GNR	IL, IN, KY, NM, TN	○	○	○
Eucyclops bondi Kiefer, 1934		Cyclopoida	Stygophile		GA, IN	○	○	○
Eucyclops elegans (Herrick, 1884)		Cyclopoida	Stygophile		GA, IN, KY, TN	○	○	○
Eucyclops speratus (Lilljeborg, 1901)	Fintagghalehops	Cyclopoida	Stygoxene		KY	○	○	○
Euglandina rosea (A. Férussac, 1821)	Rosy Predator Snail	Stylommatophora	Trogloxene	G5	FL	○	○	○
Euglesa casertana (Poli, 1791)	Caserta Pea Mussel	Sphaeriida	Accidental	LC		○	○	○
Euhadenoecus fragilis Hubbell, 1978	Tawneys Cave Cricket	Orthoptera	Troglophile		KY, TN, VA	○	○	○
Euhadenoecus insolitus Hubbell, 1978	Highland Rim Crevice Cricket	Orthoptera	Troglophile		AL, TN	○	○	○
Euhadenoecus puteanus (Scudder, 1877)	Allegheny Crevice Cricket	Orthoptera	Troglophile	GNR	AL, GA, KY, TN	○	○	○
Eupeodes volucris Osten Sacken, 1877	Large-Tailed Aphideater	Diptera	Accidental	G4		○	○	○
Eurycea bislineata (Green, 1818)		Caudata	Trogloxene	G5 LC	OH	○	○	○
Eurycea braggi (Smith, 1968)	Southern Grotto Salamander	Caudata	Troglobiont	GNR LC	AR, MO	○	15	137
Eurycea chisholmensis Chippindale, Price, Wiens & Hillis, 2000	Salado Salamander	Caudata	Stygophile	G1 EN	TX	○	○	○
Eurycea cirrigera (Green, 1831)	Southern Two-Lined Salamander	Caudata	Trogloxene	G5 LC	AL, FL, GA, KY, TN	○	○	○
Eurycea guttolineata (Holbrook, 1838)	Three-Lined Salamander	Caudata	Trogloxene	G5 LC	AL, FL, GA	○	○	○
Eurycea longicauda (Green, 1818)	Long-Tailed Salamander	Caudata	Troglophile	G5 LC	AL, GA, IL, KY, MO, TN	○	○	○
Eurycea lucifuga Rafinesque, 1822	Cave Salamander	Caudata	Troglophile	G5 LC	AL, AR, GA, IL, IN, KY, MO, OK, TN, VA, WV	○	○	○
Eurycea melanopleura (Cope, 1894)	Dark-Sided Salamander	Caudata	Troglophile		AR, OK	○	○	○
Eurycea multiplicata (Cope, 1869)	Many-Ribbed Salamander	Caudata	Trogloxene	G4 LC	AR	○	○	○
Eurycea nerea (Bishop, 1944)	Northern Grotto Salamander	Caudata	Troglobiont	GNR LC	AR, MO, KS	○	67	144
Eurycea pterophila Burger, Smith & Potter, 1950	Fern Bank Salamander	Caudata	Stygophile	G3 EN	TX	○	○	○
Eurycea rathbuni (Stejneger, 1896)	Texas Blind Salamander	Caudata	Stygobiont	G1 CR ESA	TX	○	380	9
Eurycea robusta (Longley, 1978)	Blanco Blind Salamander	Caudata	Stygobiont	G1 DD	TX	○	1	○
Eurycea spelaea (Stejneger, 1892)	Western Grotto Salamander	Caudata	Troglobiont	G4 LC	AR, KS, MO, OK, MT	○	2.1k	236
Eurycea tonkawae Chippindale et al., 2000	Jollyville Plateau Salamander	Caudata	Stygobiont	G2 EN ESA	TX	○	232	22
Eurycea tridentifera Mitchell & Reddell, 1965	Comal Blind Salamander	Caudata	Stygobiont	G3 VU	TX	○	○	○
Eurycea wallacei (Carr, 1939)	Georgia Blind Salamander	Caudata	Stygobiont	G1G2 VU	FL, GA	○	175	22
Eurycea waterlooensis Hillis et al., 2001	Austin Blind Salamander	Caudata	Stygobiont	G1 CR ESA	TX	○	14	5
Eurycea wilderae Dunn, 1920	Blue Ridge Two-Lined Salamander	Caudata	Trogloxene	G5 LC	TN	○	○	○
Euryurus erythropygos (Brandt, 1839)		Polydesmida	Trogloxene	G3	IN	○	○	○
Euryurus evides (Bollman, 1887)		Polydesmida	Trogloxene		AR	○	○	○
Euryurus leachii (Gray, 1832)	Log Lurker	Polydesmida	Trogloxene	G4	AL, KY	○	○	○
Euschoengastia pipistrelli Brennan, 1947		Trombidiformes	Trogloxene		AL, GA, TN	○	○	○
Euschoengastia staffordi Brennan & White, 1960		Trombidiformes	Trogloxene		AL	○	○	○
Eustala anastera (Walckenaer, 1841)	Orb Weaver	Araneae	Accidental	G5		○	○	○
Eustilicus condei (Jarrige, 1960)		Coleoptera	Troglophile		NM, TX	○	○	○
Eutrichota affinis (Stein, 1898)		Diptera	Trogloxene	GNR	IN	○	○	○
Eutrichota lipsia (Walker, 1849)		Diptera	Trogloxene	GNR	IN	○	○	○
Eutrombicula alfreddugesi (Oudemans, 1910)		Trombidiformes	Trogloxene		AL	○	○	○
Exechia attrita Johannsen, 1912		Diptera	Troglophile			○	○	○
Exechia auxiliaria Johannsen, 1912		Diptera	Troglophile			○	○	○
Exechia bifurcata Fisher, 1934		Diptera	Troglophile			○	○	○
Exechia obediens Johannsen, 1912		Diptera	Troglophile	GNR		○	○	○
Exechia shawi Fisher, 1934		Diptera	Troglophile		TN	○	○	○
Exechia umbratica (Aldrich, 1897)		Diptera	Troglophile	GNR	IN	○	○	○
Exechiopsis nugax (Johannsen, 1912)		Diptera	Troglophile			○	○	○
Faiditus cancellatus (Hentz, 1850)		Araneae	Accidental	GNR	AL	○	○	○
Faxonius neglectus (Faxon, 1885)	Ringed Crayfish	Decapoda	Stygophile	G5	MO, OK	○	○	○
Faxonius rusticus (Girard, 1852)	Rusty Crayfish	Decapoda	Stygoxene	G5	MO	○	○	○
Faxonius stygocaneyi (Hobbs, 2001)	Caney Mountain Cave Crayfish	Decapoda	Stygobiont	G1 LC	MO	○	2	5
Faxonius validus (Faxon, 1914)	Powerful Crayfish	Decapoda	Stygoxene	G5	AL	○	○	○
Faxonius virilis (Hagen, 1870)	Virile Crayfish	Decapoda	Stygoxene	G5	MO	○	○	○
Felis rufus Schreber, 1777		Carnivora	Trogloxene		AR	○	○	○
Feralia jocosa Guenée, 1852	Jocose Sallow	Lepidoptera	Trogloxene	G5		○	○	○
Fissilicreagris imperialis (Muchmore, 1969)	Empire Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1 VU	CA	○	○	○
Flabellorhagidia pecki Elliott, 1976		Actinedida	Troglobiont	G1G2	ID	○	○	○
Folsomia bisetosa Gisin, 1953		Entomobryomorpha	Trogloxene	GNR	IL	○	○	○
Folsomia candida Willem, V, 1902	Springtail	Entomobryomorpha	Troglophile	GNR	AL, AR, GA, IA, IL, KY, MN, MO, NM, TN	○	○	○
Folsomia elongata (MacGillivray, 1896)		Entomobryomorpha	Trogloxene	GNR	IL	○	○	○
Folsomia fimetaria (Linnæus, C, 1758)	Springtail	Entomobryomorpha	Troglophile	GNR	KY	○	○	○
Folsomia nivalis (Packard, AS, 1873)		Entomobryomorpha	Trogloxene	GNR	IA, IL, WI	○	○	○
Folsomia penicula Bagnall, 1939		Entomobryomorpha	Troglophile	GNR	AL	○	○	○
Folsomia prima Mills, HB, 1931		Entomobryomorpha	Trogloxene	GNR	IA, IL	○	○	○
Folsomia stella Christiansen, KA & Tucker, BE, 1977	Springtail	Entomobryomorpha	Troglophile	GNR	IA, IL, MN, TN, WI	○	○	○
Folsomia variabilis Fjellberg, A, 1984		Entomobryomorpha	Trogloxene		IL	○	○	○
Folsomides americanus Denis, 1931		Entomobryomorpha	Accidental		IA	○	○	○
Fontigens aldrichi (Call & Beecher, 1886)	Hoosier Springsnail	Littorinimorpha	Stygophile	G4	MO	○	○	○
Fontigens antroecetes Hubricht, 1972	Enigmatic ghostsnail	Littorinimorpha	Stygobiont	G2 VU	IL, MO	○	35	1
Fontigens bottimeri (Walker, 1925)	Appalachian Springsnail	Littorinimorpha	Stygobiont	G2G3	DC, MD, VA, MO	○	68	2
Fontigens cryptica Hubricht, 1963	Hidden springsnail	Littorinimorpha	Stygobiont	G1	IN, KY	○	7	1
Fontigens morrisoni Hershler, Holsinger & Hubricht, 1990	Virginia springsnail	Littorinimorpha	Stygobiont	G2	VA	○	8	○
Fontigens orolibas Hubricht, 1957	Blue Ridge Springsnail	Littorinimorpha	Stygophile	G3 DD	VA	○	○	○
Fontigens proserpina Hubricht, 1940	Proserpine Springsnail	Littorinimorpha	Stygobiont	G1	MO	○	20	○
Fontigens tartarea Hubtricht 1963	Organ cavesnail	Littorinimorpha	Stygobiont	G2	VA, WV, MD	○	42	2
Fontigens turritella Hubricht, 1976	Greenbrier Cavesnail	Littorinimorpha	Stygobiont	G1 NT	WV	○	8	○
Forbesichthys agassizii (Putnam, 1872)	Spring Cavefish	Percopsiformes	Stygophile	GNR LC	TN	○	○	○
Forbesichthys papilliferus (Forbes, 1882)		Percopsiformes	Stygophile	G3	IL, KY, TN	○	○	○
Forcipomyia pholetor Wirth & Howarth, 1982		Diptera	Troglobiont		HI	○	○	○
Foveacheles auricularia Zacharda & Elliott, 1985		Actinedida	Troglobiont		CA	○	○	○
Foveacheles goffi Zacharda, 1982		Actinedida	Troglobiont	G1G2	HI	○	1	○
Foveacheles tenorioae Zacharda, 1982		Actinedida	Troglobiont	G1G2	HI	○	○	○
Foveacheles titanica Zacharda & Elliott, 1985		Actinedida	Troglobiont	G2G3	CA	○	○	○
Foveacheles tuktoyaktukensis Zacharda, 1980		Actinedida	Troglophile		WV	○	○	○
Friesea claviseta Axelson, 1900	Bark-Tretornspringhale	Poduromorpha	Trogloxene	GNR	IA	○	○	○
Fumonelix wetherbyi (Bland, 1874)	Clifty Covert	Stylommatophora	Trogloxene	G2	TN	○	○	○
Fundulus notatus (Rafinesque, 1820)	Blackstripe Topminnow	Cyprinodontiformes	Accidental	G5 LC	AL	○	○	○
Gabrius microphthalmus (Horn, 1884)		Coleoptera	Troglophile	G5	IL	○	○	○
Gaeolaelaps queenslandicus (Womersley)		Mesostigmata	Troglophile		IL	○	○	○
Galba modicella (Say, 1825)	Rock Fossaria	Lymnaeida	Stygoxene			○	○	○
Galerita bicolor (Drury, 1773)		Coleoptera	Accidental	GNR	MO	○	○	○
Galerita lecontei Dejean, 1831		Coleoptera	Accidental		AL	○	○	○
Gallus gallus (Linnaeus, 1758)	Red Junglefowl	Galliformes	Accidental	G5 LC	KY	○	○	○
Galumna alata (Hermann, 1804)	Mite	Oribatida	Troglobiont	G1G2	KY	○	○	○
Gambusia affinis (Baird & Girard, 1853)	Western Mosquitofish	Cyprinodontiformes	Accidental	G5 LC	AL, FL	○	○	○
Gambusia holbrooki Girard, 1859	Eastern Mosquitofish	Cyprinodontiformes	Accidental	G5 LC	FL	○	○	○
Gammarus acherondytes Hubricht & Mackin, 1940	Illinois Cave Amphipod	Amphipoda	Stygobiont	G2G3 EN ESA	IL	○	37	80
Gammarus cohabitus Holsinger & Shafer, 2008		Amphipoda	Stygobiont	G1G2	PA	○	10	○
Gammarus limnaeus S.I. Smith, 1874		Amphipoda	Stygophile	GNR	IL, MO	○	○	○
Gammarus minus Say, 1818		Amphipoda	Stygophile	GNR	VA, WV, AL, AR, GA, IL, IN, KY, MD, MO, OH, OK, PA, TN	○	○	○
Gammarus minus tenuipes Shoemaker, 1940		Amphipoda	Stygobiont		VA, WV	○	○	○
Gammarus pseudolimnaeus Bousfield, 1958	Northern Spring Amphipod	Amphipoda	Stygophile	G5	IA, IL	○	○	○
Gammarus troglophilus Hubricht & Mackins, 1940		Amphipoda	Stygophile	GNR	IL, MO	○	○	○
Gastrellarius honestus (Say, 1823)		Coleoptera	Accidental	G5	KY	○	○	○
Gastrocopta abbreviata (Sterki, 1909)	Plains Snaggletooth	Stylommatophora	Trogloxene	G4	IL	○	○	○
Gastrocopta armifera (Say, 1821)	Armed Snaggletooth	Stylommatophora	Trogloxene	G5	IL, KY	○	○	○
Gastrocopta contracta (Say, 1822)	Bottleneck Snaggletooth	Stylommatophora	Trogloxene	G5	IL, KY	○	○	○
Gastrocopta pentodon (Say, 1822)	Comb Snaggletooth	Stylommatophora	Trogloxene		IL	○	○	○
Gastrocopta similis (Sterki, 1909)	Great Lakes Snaggletooth	Stylommatophora	Trogloxene	G5	IL	○	○	○
Gastrodonta interna (Say, 1821)	Brown Bellytooth	Stylommatophora	Trogloxene	G5	AL, GA, TN	○	○	○
Gastrophryne carolinensis (Holbrook, 1835)	Eastern Narrow-Mouthed Toad	Anura	Accidental	G5 LC		○	○	○
Gastrophryne olivacea (Hallowell, 1856)	Great Plains Narrow-Mouthed Toad	Anura	Accidental	G5 LC	TX	○	○	○
Gaucelmus augustinus Keyserling, 1884		Araneae	Troglophile	G3	AL, FL, GA, MS, TX	○	○	○
Gaucelmus cavernicola (Petrunkevitch, 1910)		Araneae	Troglophile			○	○	○
Gaucelmus strinatii Brignoli, 1979		Araneae	Troglophile			○	○	○
Gaucelmus tropicus Gertsch, 1984		Araneae	Troglophile			○	○	○
Gennadota puberula (Casey, 1893)		Coleoptera	Trogloxene		IA	○	○	○
Geocentrophora cavernicola Carpenter, 1970		Alloecoela	Stygobiont	G2	KY, VA, WV	○	2	○
Geocolus caecus Wenzel, 1944		Coleoptera	Trogloxene		AL	○	○	○
Geodromicus brunneus (Say, 1823)		Coleoptera	Trogloxene	GNR	AL, GA, IL, TN	○	○	○
Geomys bursarius (Shaw, 1800)	Plains Pocket Gopher	Rodentia	Accidental	G5 LC	KY	○	○	○
Girardia dorotocephala (Woodworth, 1897)	Flatworm	Tricladida	Stygophile		NV	○	○	○
Glacicavicola bathyscioides Westcott, 1968		Coleoptera	Troglobiont	G3 VU	ID, WY	○	4	○
Globocreagris nigrescens (J. C. Chamberlin, 1952)		Pseudoscorpiones	Troglophile		VA	○	○	○
Glyphyalinia carolinensis (T. D. A. Cockerell, 1890)	Spiral Mountain Glyph	Stylommatophora	Trogloxene	G4	TN	○	○	○
Glyphyalinia cryptomphala (G. H. Clapp, 1915)	Thin Glyph	Stylommatophora	Troglophile	G5	AL, GA, KY, TN	○	○	○
Glyphyalinia indentata (Say, 1822)	Carved Glyph	Stylommatophora	Troglophile	G5	AL, GA, KY, TN, VA	○	○	○
Glyphyalinia latebricola Hubricht, 1968	Stone Glyph	Stylommatophora	Troglophile	G2	AL, IL	○	○	○
Glyphyalinia lewisiana (G. H. Clapp, 1908)	Pale Glyph	Stylommatophora	Trogloxene	G4	KY, TN	○	○	○
Glyphyalinia luticola Hubricht, 1966	Furrowed Glyph	Stylommatophora	Trogloxene	G4	IL	○	○	○
Glyphyalinia pecki Hubricht, 1966	Blind Glyph	Stylommatophora	Troglobiont	G1G2 DD	AL	○	5	○
Glyphyalinia praecox (H. B. Baker, 1930)	Brilliant Glyph	Stylommatophora	Trogloxene	G4	GA, TN	○	○	○
Glyphyalinia rhoadsi (Pilsbry, 1899)	Sculpted Glyph	Stylommatophora	Troglophile	G5	GA, TN	○	○	○
Glyphyalinia sculptilis (Bland, 1858)	Suborb Glyph	Stylommatophora	Troglophile	G4	AL, GA, KY, TN	○	○	○
Glyphyalinia specus Hubricht, 1965	Hollow glyph	Stylommatophora	Troglobiont	G4	AL, GA, KY, TN, WV	○	28	○
Glyphyalinia wheatleyi (Bland, 1883)	Bright Glyph	Stylommatophora	Troglophile	G5	GA, TN	○	○	○
Gnathonaroides pedalis (Emerton, 1923)		Araneae	Trogloxene	GNR		○	○	○
Gnophomyia tristissima Osten Sacken, 1860		Diptera	Trogloxene	GNR	IL	○	○	○
Gopherus polyphemus (Daudin, 1801)	Gopher Tortoise	Testudines	Accidental	G3 VU		○	○	○
Gordionus lineatus Leidy, 1851		Gordioidea	Trogloxene		TN	○	○	○
Grandidierella palama Barnard, 1977		Amphipoda	Stygobiont		HI	○	4	○
Gymnophora luteiventris Schmitz, 1952		Diptera	Trogloxene	GNR		○	○	○
Gyraulus parvus (Say, 1817)	Ash Gyro	Lymnaeida	Stygoxene		FL	○	○	○
Gyrinophilus gulolineatus Brandon, 1965	Berry cave salamander	Caudata	Stygobiont	G1 EN	TN	○	31	34
Gyrinophilus palleucus McCrady, 1954	Tennessee Cave Salamander	Caudata	Stygobiont	G2G3 NT	AL, GA, TN	○	206	67
Gyrinophilus porphyriticus (Green, 1827)	Spring Salamander	Caudata	Troglophile	G5 LC	AL, GA, KY, OH, TN, VA, WV	○	○	○
Gyrinophilus subterraneus Besharse & Holsinger, 1977	West Virginia Spring Salamander	Caudata	Stygobiont	G1 CR ESA?	WV	○	30	45
Hadenoecus barri Hubbell, 1978	Barr's Cave Cricket	Orthoptera	Troglophile		TN	○	○	○
Hadenoecus cumberlandicus Hubbell & Norton, 1978	Cumberland Cave Cricket	Orthoptera	Troglophile	GNR	KY	○	○	○
Hadenoecus jonesi Hubbell, 1978	Limrock Blowing Cave Cricket	Orthoptera	Troglophile	GNR	AL, TN	○	○	○
Hadenoecus opilionoides Hubbell, 1978		Orthoptera	Troglophile		TN	○	○	○
Hadenoecus subterraneus (Scudder, 1861)	Mammoth Cave Cricket	Orthoptera	Troglophile	GNR	KY, TN	○	○	○
Haideoporus texanus Young & Longley, 1976	Edwards Aquifer Diving Beetle	Coleoptera	Stygobiont	G1G2 NE	TX	○	43	8
Halocaridina palahemo Kensley & Williams, 1986		Decapoda	Stygobiont	G1	HI	○	3	○
Halocaridina rubra Holthuis, 1963		Decapoda	Stygobiont	G3	HI	○	25	337
Hamohalacarus subterraneus Walter, 1931	Donaldson's Cave Water Mite	Actinedida	Stygobiont	G1	IN	○	○	○
Haplophthalmus danicus Budde-Lund in Meinert, 1880	Spurred Ridgeback	Isopoda	Troglophile		IL, IN, KY, NM, TN, VA	○	○	○
Haplotaxis brinkhursti Cook, 1975		Haplotaxida	Stygobiont	G1	WV	○	○	○
Haplotaxis gordioides (Hartmann in Oken, 1819)	Haplotaxid Worm	Haplotaxida	Stygoxene	GNR	WV	○	○	○
Haplotrema concavum (Say, 1821)	Gray-Foot Lancetooth	Stylommatophora	Trogloxene	G5	AL, FL, TN	○	○	○
Harpalus pennsylvanicus Say, 1823		Coleoptera	Trogloxene		GA	○	○	○
Hawaiia minuscula (A. Binney, 1841)	Minute Gem	Stylommatophora	Troglophile	G5	GA, IL, MO, TN	○	○	○
Hawaiioscia micropthalma Taiti & Howarth, 1997		Isopoda	Troglobiont	G1G2	HI	○	○	○
Hawaiioscia paeninsulae Taiti & Howarth, 1997		Isopoda	Troglobiont	G1G2	HI	○	○	1
Hawaiioscia parvituberculata Schultz, 1973		Isopoda	Troglobiont	G1G2	HI	○	7	○
Hawaiioscia rotundata Taiti & Howarth, 1997		Isopoda	Troglobiont	G1G2	HI	○	1	3
Hawinella lava Bellinger & Christiansen, 1974		Entomobryomorpha	Troglobiont	G2G3	HI	○	1	○
Heleomyza brachypterna (Loew, 1873)		Diptera	Trogloxene		AR	○	○	○
Heleomyza serrata (Linnaeus, 1758)		Diptera	Trogloxene	GNR	IN, WI	○	○	○
Helicina orbiculata (Say, 1818)		Cycloneritida	Trogloxene		AL, TN	○	○	○
Helicodiscus barri Hubricht, 1962	Raccoon coil	Stylommatophora	Troglobiont	G3G4	AL, GA, TN	○	13	106
Helicodiscus fimbriatus Wetherby, 1881	Fringed Coil	Stylommatophora	Trogloxene	G4	AL	○	○	○
Helicodiscus hadenoecus Hubricht, 1962	Cricket Coil	Stylommatophora	Troglophile		AL, KY, TN	○	○	○
Helicodiscus inermis H. B. Baker, 1929		Stylommatophora	Troglophile		AL	○	○	○
Helicodiscus multidens Hubricht, 1962	Twilight Coil	Stylommatophora	Troglophile	G3	TN	○	○	○
Helicodiscus notius Hubricht, 1962	Tight Coil	Stylommatophora	Troglophile	G5	AL, GA, IL, KY, MO, TN	○	○	○
Helicodiscus notius specus Hubricht, 1962	Hollow Coil	Stylommatophora	Troglobiont	G2	KY, TN, AL, GA, IL, MO	○	○	○
Helicodiscus parallelus (Say, 1821)	Compound Coil	Stylommatophora	Troglophile	G5	GA, TN	○	○	○
Helicodiscus punctatellus J. P. E. Morrison, 1942		Stylommatophora	Troglophile		KY	○	○	○
Helicodiscus shimeki Hubricht, 1962	Temperate Coil	Stylommatophora	Trogloxene	G5		○	○	○
Helius flavipes (Macquart, 1855)		Diptera	Trogloxene	GNR		○	○	○
Helodrilus foetidus Michaelsen, 1913		Crassiclitellata	Troglophile		KY	○	○	○
Helodrilus tenuis (Eisen, 1874)		Crassiclitellata	Troglophile		KY	○	○	○
Hemidactylium scutatum (Temminck in Temminck & Schlegel, 1838)	Four-Toed Salamander	Caudata	Accidental	G5 LC	OH	○	○	○
Heminothrus targionii (Berlese, 1885)		Sarcoptiformes	Trogloxene	GNR		○	○	○
Hemiscolopendra marginata Say (1821)	Eastern Bark Centipede	Scolopendromorpha	Trogloxene	GNR	IN	○	○	○
Hemisotoma thermophila (Axelson, 1900)		Entomobryomorpha	Trogloxene	GNR	IL	○	○	○
Hemitremia flammea (Jordan & Gilbert, 1878)	Flame Chub	Cypriniformes	Accidental	G3 NT	AL	○	○	○
Hentziectypus globosus (Hentz, 1850)	Fingered Cobweaver	Araneae	Accidental	GNR	AL	○	○	○
Hesperochernes bradybaughi Harvey & Wynne, 2014		Pseudoscorpiones	Troglobiont	GNR	AZ	○	○	○
Hesperochernes holsingeri Muchmore, 1994	Holsinger's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	IN	○	○	○
Hesperochernes mirabilis (Banks, 1895)	Southeastern Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G5	AL, GA, IN, KY, OH, TN, VA, IL	○	2	○
Hesperochernes occidentalis (Hoff & Bolsterli, 1956)	Guano Pseudoscorpion	Pseudoscorpiones	Troglobiont	G5	AR, MO, OK, TX	○	9	○
Hesperonemastoma inops (Packard, 1884)		Opiliones	Troglobiont	G1G2	KY	○	○	○
Hesperonemastoma pallidimaculosum (Goodnight & Goodnight, 1945)		Opiliones	Troglobiont	G3	AL	○	○	○
Hesperonemastoma smilax Shear, 2010		Opiliones	Troglobiont	GNR	WV	○	○	○
Heteraphorura subtenuis (Folsom, 1917)		Poduromorpha	Troglophile	GNR	IL	○	○	○
Heterelmis comalensis Bosse, Tuff & Brown, 1988	Comal Springs Riffle Beetle	Coleoptera	Stygophile	G1	TX	○	○	○
Heteromurus nitidus (Templeton, R in Templeton, R & Westwood, JO, 1836)		Entomobryomorpha	Troglophile		IA	○	○	○
Heterophrys glabrescens Penard, 1904		Piroplasmida	Stygoxene		AL, KY	○	○	○
Hexabathynella hessleri Cho, 2001		Bathynellacea	Stygobiont		CA	○	○	○
Hexabathynella muliebris Cho, 2001		Bathynellacea	Stygobiont		CA	○	○	○
Hexabathynella otayana Cho, 2001		Bathynellacea	Stygobiont		CA	○	2	○
Hexabathynella virginiae Cho & Schminke, 2006		Bathynellacea	Stygobiont		VA	○	○	○
Hibana gracilis (Hentz, 1847)	Garden Ghost Spider	Araneae	Accidental	GNR	AL	○	○	○
Hickmania troglodytes (Higgins & Petterd, 1883)	Tasmanian Cave Spider	Araneae	Troglophile			○	○	○
Hirundo rustica Linnaeus, 1758	Barn Swallow	Passeriformes	Trogloxene	G5 LC	AR, TN	○	○	○
Hobbsinella edwardensis Camacho et al., 2017		Bathynellacea	Stygobiont	GNR	TX	○	5	1
Hobbsinella gunnisonensis Camacho & Taylor, 2023		Bathynellacea	Stygobiont		CO	○	○	○
Hogna frondicola (Emerton, 1885)	Forest Wolf Spider	Araneae	Trogloxene	G5		○	○	○
Holsingeria unthanksensis Hershler, 1989	Thankless ghostsnail	Littorinimorpha	Stygobiont	G2	VA, WV	○	20	1
Holsingerius samacos (Holsinger, 1980)		Amphipoda	Stygobiont	G1G2	TX	○	78	○
Homaeotarsus bicolor (Gravenhorst, 1802)		Coleoptera	Trogloxene	GNR	IL	○	○	○
Homaeotarsus carolinus (Erichson, 1840)		Coleoptera	Trogloxene	GNR	AL	○	○	○
Homidia socia Denis, 1929	Three-Lined Springtail	Entomobryomorpha	Trogloxene		IL	○	○	○
Horologion hubbardi Harden & Davidson, 2024		Coleoptera	Troglobiont	GNR	VA	○	○	10
Horologion speokites Valentine, 1932	Arbuckle Cave Beetle	Coleoptera	Troglobiont	GH	WV	○	○	○
Horreolanus orphanus Mitchell, 1955		Trombidiformes	Stygobiont		IL, OH	○	42	5
Howaia mogera (Yaginuma, 1972)	Kasholenspin	Araneae	Troglophile		HI	○	○	○
Hubbardia shoshonensis Briggs & Hom, 1972	Shoshone Cave Whipscorpion	Schizomida	Troglobiont	G1	CA	○	1	○
Hyalella azteca (Saussure, 1858)	Mexican Freshwater Shrimp	Amphipoda	Stygoxene	G5	FL	○	○	○
Hyalella cretae Cannizzaro et al., 2023		Amphipoda	Stygobiont	GNR	NV	○	○	○
Hygrotus sayi J. Balfour-Browne, 1944	Say's Diving Beetle	Coleoptera	Stygoxene	G5		○	○	○
Hylarana grandocula (Taylor, 1920)	Big-Eyed Frog	Anura	Trogloxene			○	○	○
Hypena scabra (Fabricius, 1798)	Green Cloverworm	Lepidoptera	Trogloxene	G5	IL, IN, VA	○	○	○
Hypentelium nigricans (Lesueur, 1817)	Northern Hog Sucker	Cypriniformes	Stygoxene	G5 LC	AL	○	○	○
Hypoaspis angusta Karg, 1962		Mesostigmata	Troglophile		IL	○	○	○
Hypochilus bonneti Gertsch, 1964		Araneae	Trogloxene	GNR	CO, NM	○	○	○
Hypochilus coylei Platnick, 1987		Araneae	Trogloxene	G3	NC	○	○	○
Hypochilus gertschi Hoffman, 1963		Araneae	Trogloxene	G3	VA	○	○	○
Hypochilus pococki Platnick, 1987	Pocock's Lampshade-Web Spider	Araneae	Trogloxene	G4	NC, TN	○	○	○
Hypochilus thorelli Marx, 1888	Thorell's Lampshade-Web Spider	Araneae	Trogloxene	G4	AL, GA, TN, VA	○	○	○
Hypogastrura antra Christiansen, K & Bellinger, P, 1980		Poduromorpha	Troglophile		KY, TN	○	○	○
Hypogastrura assimilis (Krausbauer, 1898)	Mark-Tornspringhale	Poduromorpha	Trogloxene	GNR	AL, IL, TN	○	○	○
Hypogastrura matura (Folsom, JW, 1916)		Poduromorpha	Trogloxene	GNR	IL, MO	○	○	○
Hypogastrura notha (Macnamara, 1922)		Poduromorpha	Trogloxene		IL	○	○	○
Hypogastrura purpurescens (Lubbock, J, 1870)	Purpur-Tornspringhale	Poduromorpha	Trogloxene	GNR		○	○	○
Hypogastrura sparta Christiansen & Bellinger, 1980		Poduromorpha	Trogloxene		AL	○	○	○
Hypogastrura tullbergi (Schäffer, 1900)		Poduromorpha	Troglophile	GNR	AL	○	○	○
Ictalurus punctatus (Rafinesque, 1818)	Channel Catfish	Siluriformes	Stygoxene	G5 LC	AL, FL	○	○	○
Ictidomys tridecemlineatus (Mitchill, 1821)	Thirteen-Lined Ground Squirrel	Rodentia	Accidental	G5 LC		○	○	○
Ictiobus bubalus (Rafinesque, 1818)	Smallmouth Buffalo	Cypriniformes	Stygoxene	G5 LC	AL	○	○	○
Idagona jasperi Shear, 2007		Chordeumatida	Troglobiont		UT	○	○	○
Idagona lehmanensis Shear, 2007		Chordeumatida	Troglobiont		NV	○	34	○
Idagona westcotti Buckett & Gardner, 1967	Idaho Lave Tube Millipede	Chordeumatida	Troglobiont	G1G2	ID	○	○	○
Illacme tobini Marek et al., 2016		Siphonophorida	Troglobiont		CA	○	○	○
Inflectarius inflectus (Say, 1821)	Shagreen	Stylommatophora	Trogloxene	G5	AL, FL, IL, KY, MO, TN	○	○	○
Inflectarius rugeli (Shuttleworth, 1852)	Deep-Tooth Shagreen	Stylommatophora	Trogloxene	G5	AL, GA, KY, TN	○	○	○
Iolania frankanstonei Hoch, 2024		Homoptera	Troglobiont		HI	○	○	○
Islandiana cavealis Ivie, 1965	Cave Sheet-web Spider	Araneae	Troglobiont	GNR	IN	○	○	○
Islandiana flaveola (Banks, 1892)	Unequal Whiskered Money Spider	Araneae	Troglophile	G5	IL	○	○	○
Islandiana lewisi Milne & Wells, 2018	cave sheet-web spider	Araneae	Troglobiont	G1	IN	○	○	○
Islandiana muma Ivie, 1965		Araneae	Troglobiont	G1G2	AL, VA, IL	○	1	○
Islandiana princeps Brændegaard, 1932	Eastern Whiskered Money Spider	Araneae	Troglophile	GNR	IL	○	○	○
Islandiana speophila Ivie, 1965	Cavern Sheet-web Spider	Araneae	Troglobiont	G1	WV	○	○	○
Islandiana unicornis Ivie, 1965		Araneae	Troglobiont	G2G3	OK, TX, IL	○	4	○
Isotoma andrei Mills, HB, 1934		Entomobryomorpha	Trogloxene		IL	○	○	○
Isotoma gelida Folsom, 1937		Entomobryomorpha	Trogloxene		IL	○	○	○
Isotoma tariva Wray, 1953		Entomobryomorpha	Troglophile		TN	○	○	○
Isotoma trispinata Tuxen, 1944		Entomobryomorpha	Trogloxene		IA, IL, MN	○	○	○
Isotoma viridis Bourlet, C, 1839	Engspringhale	Entomobryomorpha	Trogloxene	GNR	IA, MO	○	○	○
Isotomiella minor (Schäffer, 1896)	Springtail	Entomobryomorpha	Trogloxene	GNR	IA, IL, TN	○	○	○
Ixodes conepati Cooley & Kohls, 1943		Ixodida	Trogloxene		NM, TX	○	○	○
Ixodes cookei Packard, 1869	American Castor Bean Tick	Ixodida	Trogloxene		GA, KY	○	○	○
Ixodes scapularis Say, 1821	Black Legged Tick	Ixodida	Trogloxene	GNR	OK	○	○	○
Ixodes woodi Bishopp, 1911		Ixodida	Trogloxene	GNR	TN	○	○	○
Jalysus wickhami Van Duzee, 1906	Spined Stilt Bug	Hemiptera	Accidental	GNR	KY	○	○	○
Kenkia glandulosa Hyman, 1956	Pink Cave Flatworm	Tricladida	Stygobiont	G2G3	IA, MO	○	11	○
Kenkia lewisi Kenk, 1975	Lewis' cave planarian	Tricladida	Stygobiont	G1	IL, MO	○	15	○
Kenkia rhynchida Hyman, 1937	Malheur Cave Flatworm	Tricladida	Stygobiont	G1G2 NE	OR	○	2	○
Kleptochthonius affinis Muchmore, 1976		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Kleptochthonius anophthalmus Muchmore, 1970		Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Kleptochthonius attenuatus Malcolm & Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1	KY	○	○	○
Kleptochthonius barri Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Kleptochthonius binoculatus Muchmore, 1974		Pseudoscorpiones	Troglobiont	G1G2	VA	○	○	○
Kleptochthonius cerberus Malcolm & Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1	KY	○	1	○
Kleptochthonius charon Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Kleptochthonius daemonius Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Kleptochthonius erebicus Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1	KY	○	○	○
Kleptochthonius gertschi Malcolm & Chamberlin, 1961	Gertsch's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Kleptochthonius griseomanus Muchmore, 2000	Gray-handed Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G2	IN	○	○	○
Kleptochthonius hageni Muchmore, 1963		Pseudoscorpiones	Troglobiont	G1G2	KY	○	7	○
Kleptochthonius henroti (Vachon, 1952)	Greenbrier Valley Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G2	WV	○	1	○
Kleptochthonius hetricki Muchmore, 1974	Organ Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	WV	○	○	○
Kleptochthonius hubrichti Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1G2	KY	○	○	○
Kleptochthonius infernalis Malcolm & Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Kleptochthonius krekeleri Muchmore, 1965		Pseudoscorpiones	Troglobiont	G2G4	KY	○	○	○
Kleptochthonius lewisorum Muchmore, 2000	Lewis Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	IN	○	○	○
Kleptochthonius lutzi Malcolm & Chamberlin, 1961	Lutz's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Kleptochthonius magnus Muchmore, 1966		Pseudoscorpiones	Troglobiont	G1	GA, TN	○	○	○
Kleptochthonius microphthalmus Malcolm & Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1G2	KY	○	○	○
Kleptochthonius multispinosus (Hoff, 1945)		Pseudoscorpiones	Troglophile		AL	○	○	○
Kleptochthonius myopius Malcolm & J. C. Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Kleptochthonius orpheus Muchmore, 1965	Orpheus Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	WV	○	○	○
Kleptochthonius packardi (Hagen, 1879)	Packard's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G2	IN, KY	○	6	○
Kleptochthonius pluto Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Kleptochthonius proserpinae Muchmore, 1965	Proserpina Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	WV	○	○	○
Kleptochthonius proximosetus Muchmore, 1976		Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Kleptochthonius regulus Muchmore, 1970		Pseudoscorpiones	Troglobiont	G1G2	VA	○	○	○
Kleptochthonius rex Malcolm & J. C. Chamberlin, 1961		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Kleptochthonius similis Muchmore, 1976		Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Kleptochthonius stygius Muchmore, 1965		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Kleptochthonius tantalus Muchmore, 1966		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Komarekiona eatoni Gates, 1974	Kentucky Earthworm	Crassiclitellata	Troglophile	GNR DD	IL	○	○	○
Labidostomma neotropica Stoll, 1891		Trombidiformes	Troglophile		TN	○	○	○
Laccophilus maculosus (Germar, 1823)	Dingy Diver	Coleoptera	Stygoxene	G5		○	○	○
Lacrimacandona wisei Kulkoyluoglu et al., 2017		Podocopida	Stygobiont	GNR	TX	○	○	○
Lacunicambarus diogenes (Girard, 1852)	Devil Crawfish	Decapoda	Stygoxene	G5	IL, KY	○	○	○
Ladislavella elodes (Say, 1821)	Marsh Pondsnail	Lymnaeida	Stygoxene			○	○	○
Laelaps cavernicola Packard, 1888		Mesostigmata	Troglobiont		KY	○	○	○
Lampetra aepyptera (Abbott, 1860)	Least Brook Lamprey	Petromyzontiformes	Stygoxene	G5 LC	AL, KY	○	○	○
Lampropeltis holbrooki Stejneger, 1902	Speckled Kingsnake	Squamata	Accidental	G5 LC	AR	○	○	○
Larca aalbui (Muchmore, 1984)	Aalbu's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	○	○
Larca cavicola (Muchmore, 1981)	Grand Canyon Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	AZ	○	○	○
Larca guadalupensis (Muchmore, 1981)	Guadalupe Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Larca laceyi Muchmore, 1981	Lacey's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	○	○
Larca welbourni (Muchmore, 1981)		Pseudoscorpiones	Troglobiont	G1G2	AZ	○	○	○
Lascoria ambigualis Walker, 1866	Ambiguous Moth	Lepidoptera	Trogloxene	G5	AL	○	○	○
Lasionycteris noctivagans (Le Conte, 1831)	Black Bat	Chiroptera	Trogloxene	G4 LC	AR	○	○	○
Lasiurus borealis (Müller, 1776)	Eastern Red Bat	Chiroptera	Trogloxene	G3 LC	AR, GA, KY, TN	○	○	○
Lasiurus cinereus (Palisot de Beauvois, 1796)		Chiroptera	Trogloxene		AR, KY, TN	○	○	○
Lasiurus seminolus (Rhoads, 1895)	Seminole Bat	Chiroptera	Trogloxene	G5 LC		○	○	○
Latrodectus variolus Walckenaer, 1837	Northern Black Widow	Araneae	Accidental	GNR	TN	○	○	○
Lebia ornata Say, 1823	Ornate Harp Ground Beetle	Coleoptera	Accidental	G5	AL	○	○	○
Leia cuneola (Adams, 1903)		Diptera	Troglophile		AL, GA	○	○	○
Leiobunum aldrichi Weed, 1893	Aldrich's Harvestman	Opiliones	Trogloxene	GNR	AL	○	○	○
Leiobunum calcar (Wood, 1868)		Opiliones	Trogloxene	GNR	TN	○	○	○
Leiobunum longipes Menge, 1854		Opiliones	Trogloxene		KY	○	○	○
Leiobunum politum Weed, 1889		Opiliones	Trogloxene	GNR		○	○	○
Leiobunum vittatum (Say, 1821)	Eastern Harvestman	Opiliones	Trogloxene			○	○	○
Lepidocyrtus atropurpureus Packard, 1888		Entomobryomorpha	Troglophile		KY	○	○	○
Lepidocyrtus helenae Snider, RJ, 1967		Entomobryomorpha	Trogloxene	G3	TN	○	○	○
Lepidocyrtus paradoxus Uzel, 1890		Entomobryomorpha	Trogloxene	GNR		○	○	○
Lepidocyrtus usitatus Folsom, JW, 1927		Entomobryomorpha	Trogloxene			○	○	○
Lepomis auritus (Linnaeus, 1758)	Redbreast Sunfish	Centrarchiformes	Stygoxene	G5 LC	AL	○	○	○
Lepomis cyanellus Rafinesque, 1819	Green Sunfish	Centrarchiformes	Stygoxene	G5 LC	AL, AR, IL, KY	○	○	○
Lepomis gulosus (Cuvier, 1829)	Warmouth	Centrarchiformes	Stygoxene	G5 LC	FL	○	○	○
Lepomis humilis (Girard, 1858)	Orangespotted Sunfish	Centrarchiformes	Stygoxene	G5 LC	AL	○	○	○
Lepomis macrochirus Rafinesque, 1819	Bluegill	Centrarchiformes	Stygoxene	G5 LC	AL, FL, KY	○	○	○
Lepomis megalotis (Rafinesque, 1820)	Mojarra De Cuatro Cienegas	Centrarchiformes	Stygoxene	GNR LC	KY	○	○	○
Lepomis microlophus (Günther, 1859)	Redear Sunfish	Centrarchiformes	Stygoxene	G5 LC	AL	○	○	○
Lepthyphantes leprosus (Ohlert, 1865)	Household Fine Sheetweaver	Araneae	Troglophile	GNR	IL	○	○	○
Leptocera atra (Adams, 1903)		Diptera	Troglophile		NM	○	○	○
Leptocera caenosa (Rondani, 1880)		Diptera	Troglophile	GNR	GA	○	○	○
Leptopeza compta Coquillett, 1895		Diptera	Trogloxene	GNR		○	○	○
Leptotrombidium myotis (Ewing, 1929)		Trombidiformes	Trogloxene		GA	○	○	○
Lepus americanus Erxleben, 1777	Snowshoe Hare	Lagomorpha	Accidental	G5 LC		○	○	○
Lesteva cribratula (Casey, 1893)		Coleoptera	Trogloxene		AL	○	○	○
Lesteva pallipes LeConte, J. L., 1863		Coleoptera	Troglophile	G5	AL, GA, IA, IL, IN, KY, TN	○	○	○
Lestodiplosis grassator (Fyles, 1883)		Diptera	Trogloxene	GNR		○	○	○
Lestodiplosis satiata Felt, 1919		Diptera	Trogloxene			○	○	○
Lethemurus missus Mills, 1948	Missus Cave Springtail	Entomobryomorpha	Troglobiont	G4	CO, IL, IN, KY, MO, TN, Mexico	○	5	○
Leucauge venusta (Walckenaer, 1841)	Orchard Orbweaver	Araneae	Trogloxene	GNR	AL, IL, KY	○	○	○
Leucohya heteropoda Chamberlin, 1946		Pseudoscorpiones	Troglophile			○	○	○
Leucohya texana Muchmore, 1986		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Leydigia leydigi (Schödler, 1863)	Gewone Breedstaartwatervlo	Diplostraca	Stygoxene		FL	○	○	○
Liagoceradocus lonomaka (Barnard, 1977)		Amphipoda	Stygobiont	G1G2	HI	○	○	○
Liancalus genualis Loew, 1861		Diptera	Trogloxene	GNR	GA, IN	○	○	○
Ligidium elrodii (Packard, 1873)		Isopoda	Troglophile	G4	AL, AR, GA, IL, KY, TN, VA, WV	○	○	○
Ligidium kofoidi Maloney, 1930		Isopoda	Troglobiont	G1G2	CA	○	5	○
Limomyza cavernicola Marshall, 1997		Diptera	Trogloxene		CO	○	○	○
Limonia annulata Lackschewitz, 1940	Syyssienikiekko	Diptera	Trogloxene			○	○	○
Limonia badia (Walker, 1848)		Diptera	Trogloxene	GNR		○	○	○
Limonia indigena (Osten Sacken, 1860)		Diptera	Trogloxene	GNR		○	○	○
Limonia maculicosta (Coquillett, 1905)		Diptera	Trogloxene	GNR		○	○	○
Limonia stulta (Osten Sacken, 1859)		Diptera	Trogloxene		AR	○	○	○
Linopodes mammouthia Banks, 1897		Trombidiformes	Troglobiont		KS, KY	○	○	○
Liocranoides archeri Platnick, 1999	Archer's Two-clawed Cave Spider	Araneae	Troglobiont	G2	AL, TN	○	○	6
Liocranoides coylei Platnick, 1999		Araneae	Troglophile		TN, VA	○	○	○
Liocranoides tennesseensis Platnick, 1999		Araneae	Troglophile	G1	TN	○	○	○
Liocranoides unicolor Keyserling, 1881		Araneae	Troglobiont	GU	KY, TN, AL, GA	○	5	○
Liposcelis decolor (Pearman, 1925)	Book Louse	Psocodea	Troglophile		GA	○	○	○
Liposcelis divinatoria (Müller, 1776)		Psocodea	Trogloxene		KY	○	○	○
Lirceolus bisetus (Steeves, 1968)		Isopoda	Stygobiont	G1G2	TX	○	14	5
Lirceolus cocytus Lewis, 2001		Isopoda	Stygobiont	GNR	TX	○	47	10
Lirceolus hardeni Lewis & Bowman, 1996		Isopoda	Stygobiont	G2G3	TX	○	227	21
Lirceolus nidulus Lewis, 2001		Isopoda	Stygobiont	GNR	TX, Mexico	○	5	○
Lirceolus pilus (Steeves, 1968)		Isopoda	Stygobiont	G2G3	TX	○	117	8
Lirceolus smithii (Ulrich, 1902)	Texas Troglobitic Water Slater	Isopoda	Stygobiont	G1G2	TX	○	432	○
Lirceus bicuspidatus Hubricht & Mackin, 1949		Isopoda	Stygophile	G3	AR	○	○	○
Lirceus bidentatus Hubricht & Mackin, 1949		Isopoda	Stygophile	G1	AR	○	○	○
Lirceus bisetus Lewis & Lewis, 2023		Isopoda	Stygobiont		VA	○	○	3
Lirceus culveri Estes & Holsinger, 1976	Rye Cove Cave Isopod	Isopoda	Stygobiont	G1 VU	VA	○	9	9
Lirceus fontinalis Rafinesque, 1820	Lower Ohio Waterslater	Isopoda	Stygophile	GNR	GA, IL, KY, TN	○	○	○
Lirceus garmani Hubricht & Mackin, 1949		Isopoda	Stygophile	GNR	KS, OK	○	○	○
Lirceus holsingeri Lewis & Lewis, 2023		Isopoda	Stygobiont		VA	○	○	○
Lirceus hoppinae (Faxon, 1889)	Blunt-Toothed Springslater	Isopoda	Stygophile	GNR	MO, OK	○	○	○
Lirceus littonensis Lewis & Lewis, 2023		Isopoda	Stygobiont		VA	○	○	3
Lirceus orndorffi Lewis & Lewis, 2023		Isopoda	Stygobiont		VA	○	○	9
Lirceus slayorum Lewis & Lewis, 2023	Flat Waterslaters	Isopoda	Stygoxene		MO	○	○	○
Lirceus usdagalun Holsinger & Bowman, 1973	Lee County Cave Isopod	Isopoda	Stygobiont	G1 EN ESA	VA	○	14	11
Lirceus zigleri Lewis & Lewis, 2023	Flat Waterslaters	Isopoda	Stygobiont	GNR	VA	○	○	3
Lissocreagris eurydice (Muchmore, 1969)		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Lissocreagris nickajackensis (Muchmore, 1966)		Pseudoscorpiones	Troglobiont	G1G2	AL, TN	○	○	○
Lissocreagris persephone (Chamberlin, 1962)		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Lissocreagris pluto (Chamberlin, 1962)		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Lissocreagris subatlantica (J. C. Chamberlin, 1962)		Pseudoscorpiones	Troglophile	G3	AL, GA	○	○	○
Lissocreagris valentinei (Chamberlin, 1962)	Valentine's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Litargus balteatus LeConte, 1856	Stored Grain Hairy Fungus Beetle	Coleoptera	Troglophile	GNR	IA	○	○	○
Lithasia obovata (Say, 1829)	Shawnee Rocksnail	Cerithiida	Stygoxene	G4	KY	○	○	○
Lithobates catesbeianus (Shaw, 1802)	American Bullfrog	Anura	Trogloxene		AL, AR, FL, GA, IL, IN, KY, TN	○	○	○
Lithobates clamitans (Latreille in Sonnini de Manoncourt & Latreille, 1801)	Green Frog	Anura	Trogloxene		AL, AR, FL, GA, IN, KY, OK, TN	○	○	○
Lithobates grylio (Stejneger, 1901)		Anura	Trogloxene		FL	○	○	○
Lithobates heckscheri (Wright, 1924)		Anura	Accidental			○	○	○
Lithobates palustris (LeConte, 1825)	Pickerel Frog	Anura	Trogloxene	G5 LC	AL, AR, CT, GA, IL, KY, OK, TN	○	○	○
Lithobates sphenocephalus (Cope, 1886)	Southern Leopard Frog	Anura	Trogloxene	G5 LC	AR, FL, GA, KY, TN	○	○	○
Lithobates sylvaticus (LeConte, 1825)		Anura	Trogloxene		AR, NY, TN, VA	○	○	○
Lithobius atkinsoni Bollman, 1887		Lithobiomorpha	Troglophile		AL, FL, GA, TN	○	○	○
Litocampa cookei (Packard, 1871)	Cooke's Cave Dipluran	Rhabdura	Troglobiont	G5	AL, KY, TN, VA, GA	○	2	○
Litocampa fieldingae (Conde, 1949)	Fielding's Cave Dipluran	Rhabdura	Troglobiont	G2G3	VA, WV	○	○	○
Litocampa henroti (Conde, 1949)		Rhabdura	Troglobiont	G1G2	AL	○	○	○
Litocampa hoffmani Ferguson, 2009		Rhabdura	Troglobiont	G3	VA	○	○	○
Litocampa jonesi (Conde, 1949)		Rhabdura	Troglobiont	G2G3	KY, TN	○	○	○
Litocampa pucketti Conde & Bareth, 1996	Puckett's Cave Dipluran	Rhabdura	Troglobiont	G1G2	VA	○	○	○
Litocampa valentinei (Conde, 1949)		Rhabdura	Troglobiont	G5	AL, TN	○	○	○
Lobosculum pustuloides (Bland, 1858)	Tiny Liptooth	Stylommatophora	Trogloxene	G4	AL	○	○	○
Lontra canadensis (Schreber, 1777)	Common Otter	Carnivora	Stygoxene	G5 LC	OK	○	○	○
Lophomus skamania (Causey, 1972)		Chordeumatida	Troglobiont		WA	○	1	○
Loxosceles panama Gertsch, 1958	Violin Spiders	Araneae	Trogloxene			○	○	○
Lucilla inermis (H. B. Baker, 1929)	Oldfield Coil	Stylommatophora	Troglophile		AL, GA, TN	○	○	○
Lucilla singleyana (Pilsbry, 1889)	Singley's Subterranean Discus Snail	Stylommatophora	Trogloxene	G5	IL, TN	○	○	○
Lumbricus rubellus Hoffmeister, 1843	Blood Worm	Crassiclitellata	Troglophile	GNR	GA, IL, NC, VA	○	○	○
Lumbricus terrestris Linnaeus, 1758	Nightcrawler	Crassiclitellata	Troglophile	GNR	IL	○	○	○
Lustrochernes minor Chamberlin, 1938		Pseudoscorpiones	Troglophile			○	○	○
Luxilus chrysocephalus Rafinesque, 1820	Striped Shiner	Cypriniformes	Stygoxene	G5 LC	AL	○	○	○
Lycosa howarthi Gertsch, 1973		Araneae	Troglobiont	G1G2	HI	○	2	○
Lymantes nadineae Paquin & Anderson, 2009		Coleoptera	Troglobiont	GNR	TX	○	5	○
Lynx rufus (Schreber, 1777)	Bobcat	Carnivora	Trogloxene	G5 LC	AR, KY, TN	○	○	○
Lyogyrus retromargo (F. G. Thompson, 1968)	Indented Duskysnail	Littorinimorpha	Stygophile	GU LC	FL	○	○	○
Lythrurus fasciolaris (Gilbert, 1891)	Scarlet Shiner	Cypriniformes	Accidental	G5 LC	KY	○	○	○
Macrobrachium carcinus (Linnaeus, 1758)	Bigclaw River Shrimp	Decapoda	Stygoxene	G5 LC	FL	○	○	○
Macrocera hirsuta Loew, 1870		Diptera	Troglophile		IN	○	○	○
Macrocera nobilis Johnson, 1922		Diptera	Troglophile	GNR	AR, IL, KY, OK, TN	○	○	○
Macrocheles penicilliger (Berlese, 1904)		Mesostigmata	Troglophile		TN	○	○	○
Macrocheles robustulus (Berlese, 1904)	Mite	Mesostigmata	Troglophile		TN	○	○	○
Macrocheles stygius (Packard, 1888)		Mesostigmata	Troglobiont	G1G2	KY	○	○	○
Macrocheles troglodytes (Packard, 1888)		Mesostigmata	Troglobiont	G1G2	KY	○	○	○
Macrocyclops albidus (Jurine, 1820)	White Copepod	Cyclopoida	Stygophile		FL, GA, IL, IN, KY, TN	○	○	○
Macrocyclops fuscus (Jurine, 1820)	Giant Copepod	Cyclopoida	Stygophile		IN, KY	○	○	○
Macromastus umpqua Shear, 1982		Chordeumatida	Troglobiont	G1G2	OR	○	1	○
Maevia inclemens (Walckenaer, 1837)	Dimorphic Jumper	Araneae	Accidental	GNR	GA	○	○	○
Malaconothrus monodactylus (Michael, 1888)		Sarcoptiformes	Accidental		IA	○	○	○
Mangora placida (Hentz, 1847)	Tuftlegged Orbweaver	Araneae	Accidental	GNR	AL	○	○	○
Manota obscura (Walker, 1948)		Diptera	Troglophile		IN	○	○	○
Margarinotus egregius (Casey, 1916)		Coleoptera	Accidental	G5	GA	○	○	○
Marmota monax (Linnaeus, 1758)	Groundhog	Rodentia	Accidental	G5 LC	IN	○	○	○
Marpissa lineata (C. L. Koch, 1846)	Four-Lined Slender Jumping Spider	Araneae	Accidental	GNR	KY	○	○	○
Marstonia comalensis (Pilsbry & Ferriss, 1906)	Comal Marstonia	Littorinimorpha	Stygophile	G2	TX	○	○	○
Marstonia ogmorhaphe F. G. Thompson, 1977	Royal Marstonia	Littorinimorpha	Stygoxene	G1	TN	○	○	○
Martes americana (Turton, 1806)	American Marten	Carnivora	Trogloxene	G5 LC	KY	○	○	○
Mastigoproctus giganteus (Lucas, 1835)	Giant Vinegaroon	Uropygi	Trogloxene	GNR	FL	○	○	○
Maymena ambita (Barrows, 1940)		Araneae	Troglophile	GNR	AL, GA, IL, TN	○	○	○
Mecyclothorax aa Liebherr, 2008		Coleoptera	Troglobiont		HI	○	○	○
Mecynogea lemniscata (Walckenaer, 1841)	Basilica Orbweaver	Araneae	Accidental	GNR	AL	○	○	○
Megacyclops donnaldsoni (Chappuis, 1929)	Donaldson's Cave Copepod	Cyclopoida	Stygobiont	G3G4	GA, IN, KY, TN	○	1	○
Megacyclops latipes (Lowndes, 1927)		Cyclopoida	Stygoxene		IN, TN	○	○	○
Megacyclops viridis (Jurine, 1820)	Cyclopoid Copepod	Cyclopoida	Stygophile		IN	○	○	○
Megalothorax minimus Womersley, 1939		Neelipleona	Troglophile		IA, IL	○	○	○
Megalothorax tristani Denis, J-R, 1933		Neelipleona	Trogloxene		IL	○	○	○
Megapallifera mutabilis (Hubricht, 1951)	Changeable Mantleslug	Stylommatophora	Trogloxene	G5	KY	○	○	○
Megascops asio (Linnaeus, 1758)	Eastern Screech Owl	Strigiformes	Trogloxene	G5 LC	AL, OK	○	○	○
Megaselia breviterga (Lundbeck, 1919)		Diptera	Troglophile		GA	○	○	○
Megaselia cavernicola (Brues, 1906)		Diptera	Troglophile	GNR	AL, AR, GA, IA, IL, KY, TN	○	○	○
Megaselia nigriceps (Loew, 1866)		Diptera	Troglophile	GNR	IN	○	○	○
Megaselia rufipes (Meigen, 1804)	Hump-Backed Fly	Diptera	Troglophile	GNR	IN, KY, NM	○	○	○
Megaselia spelunciphila Reeves & Disney, 1999		Diptera	Troglophile		GA	○	○	○
Melanoides tuberculata (O. F. Müller, 1774)		Cerithiida	Stygoxene		FL	○	○	○
Melanolestes picipes (Herrich-Schaeffer, 1848)	Black Corsair	Heteroptera	Trogloxene	GNR	IL	○	○	○
Mephitis mephitis (Schreber, 1776)	Striped Skunk	Carnivora	Trogloxene	G5 LC	AR, KY, OK	○	○	○
Mermessus antraeus (Crosby, 1926)		Araneae	Trogloxene	GNR	IL, NM, TX	○	○	○
Mermessus denticulatus (Banks, 1898)	Amerikaanse Kasdwergspin	Araneae	Trogloxene	GNR	AL, IL, NM	○	○	○
Mermessus indicabilis (Crosby & Bishop, 1928)		Araneae	Trogloxene	GNR	IL	○	○	○
Mermessus maculatus (Banks, 1892)	Sheet-Web Spiders	Araneae	Trogloxene	GNR	AL, GA, IL, MO, TN	○	○	○
Mermessus tridentatus (Emerton, 1882)	Spider	Araneae	Trogloxene	GNR	AL, IL, TN	○	○	○
Meropelopia flavifrons (Johannsen, 1905)		Diptera	Trogloxene			○	○	○
Mesaphorura iowensis (Mills, HB, 1932)		Poduromorpha	Troglophile	GNR	GA, IA	○	○	○
Mesaphorura krausbaueri Jordana et al., 1987		Poduromorpha	Troglophile		GA	○	○	○
Mesaphorura pacifica Rusek, 1976		Poduromorpha	Accidental	GNR	IA	○	○	○
Mesaphorura silvicola (Folsom, 1932)		Poduromorpha	Trogloxene		IL	○	○	○
Mesocyclops edax (Forbes, 1891)		Cyclopoida	Stygoxene		IL, IN, KY	○	○	○
Mesodon clausus (Say, 1821)	Yellow Globelet	Stylommatophora	Trogloxene	G5	IL	○	○	○
Mesodon thyroidus (Say, 1817)	White-Lip Globe	Stylommatophora	Trogloxene	G5	FL, TN	○	○	○
Mesodon zaletus (A. Binney, 1837)	Toothed Globe	Stylommatophora	Trogloxene	G5	AL, FL, KY	○	○	○
Mesomphix andrewsae (Pilsbry, 1895)	Mountain Button	Stylommatophora	Trogloxene	G3	TN	○	○	○
Mesomphix anurus Hubricht, 1962	Frog Button	Stylommatophora	Trogloxene	G4	AL	○	○	○
Mesomphix capnodes (W. G. Binney, 1857)	Dusky Button	Stylommatophora	Trogloxene	G5	AL	○	○	○
Mesomphix cupreus (Rafinesque, 1831)	Copper Button	Stylommatophora	Trogloxene		KY, TN	○	○	○
Mesomphix perlaevis (Pilsbry, 1900)	Smooth Button	Stylommatophora	Trogloxene	G4	KY	○	○	○
Mesomphix pilsbryi (G. H. Clapp, 1904)	Striate Button	Stylommatophora	Trogloxene	G4	AL	○	○	○
Meta ovalis (Gertsch, 1933)	Cave Orb Weaver	Araneae	Troglophile	G5	AL, AR, GA, IA, IL, IN, KY, MO, OK, TN, VA	○	○	○
Metajapyx subterraneus (Packard, 1874)		Dicellurata	Troglophile		KY	○	○	○
Metalimnobia cinctipes (Say, 1823)		Diptera	Trogloxene	GNR		○	○	○
Metaltella simoni (Keyserling, 1878)	Hacklemesh Weaver	Araneae	Accidental	GNR	GA	○	○	○
Metisotoma grandiceps Stebaeva, 2015		Entomobryomorpha	Accidental		IA	○	○	○
Mexichthonius exoticus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1G2	TN	○	○	○
Mexistenasellus coahuila Cole & Minckley, 1972	Coahuila Groundwater Isopod	Isopoda	Stygobiont	G2G3 EN	TX, Mexico	○	44	2
Mexistenasellus floridensis Lewis & Sawicki, 2016	Florida Cave Isopod	Isopoda	Stygobiont	G1	FL	○	3	○
Mexiweckelia hardeni Holsinger, 1992		Amphipoda	Stygobiont	G2G3	TX	○	21	○
Microbisium parvulum (Banks, 1895)		Pseudoscorpiones	Trogloxene	GNR	IL, KY, TN	○	○	○
Microcreagris grandis Muchmore, 1962	Great Basin Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2	NV	○	12	2
Microcyclops rubellus (Lilljeborg, 1901)		Cyclopoida	Stygoxene		IL, IN, KY, TN	○	○	○
Microcylloepus pusillus (LeConte, 1852)		Coleoptera	Stygoxene	GNR	TX	○	○	○
Micropogonias undulatus (Linnaeus, 1766)	Croaker	Perciformes	Accidental	G5 LC		○	○	○
Micropterus dolomieu Lacepède, 1802	Smallmouth Bass	Centrarchiformes	Stygoxene	GNR LC	TN	○	○	○
Micropterus punctulatus (Rafinesque, 1819)	Spotted Bass	Centrarchiformes	Stygoxene	G5 LC	KY	○	○	○
Micropterus salmoides (Lacepède, 1802)	American Black Bass	Centrarchiformes	Stygoxene	GNR LC	AL, FL	○	○	○
Microtus ochrogaster (Wagner, 1842)	Prairie Vole	Rodentia	Accidental	G5 LC	KY	○	○	○
Microtus pennsylvanicus (Ord, 1815)	Meadow Vole	Rodentia	Accidental	G5 LC	KY	○	○	○
Microtus pinetorum (Le Conte, 1830)	Pine Vole	Rodentia	Accidental	G5 LC	AR, KY	○	○	○
Microtus xanthognathus (Leach, 1815)	Taiga Vole	Rodentia	Accidental	G5 LC		○	○	○
Microvelia americana (Uhler, 1884)		Hemiptera	Stygoxene	GNR	GA, IL	○	○	○
Miktoniscus barri Vandel, 1965	Barr's Terrestrial Cave Isopod	Isopoda	Troglobiont	G2G4	IN, KY, TN	○	4	○
Miktoniscus linearis (Patience, 1908)		Isopoda	Troglophile		AL	○	○	○
Miktoniscus medcofi Van Name, 1940	Small Alabama Sowbug	Isopoda	Troglophile	GNR	AL, FL, IL, NC, TN, VA, WV	○	○	○
Miktoniscus morganensis Schultz, 1976		Isopoda	Troglophile		AL	○	○	○
Miktoniscus oklahomensis Vandel, 1965	Racovitza's Cave Isopod	Isopoda	Troglobiont	G1G2	OK	○	○	○
Miktoniscus racovitzai Vandel, 1950	Racovitza's Terrestrial Cave Isopod	Isopoda	Troglobiont	G3G4	VA, KY, OK	○	20	○
Mimetus notius Chamberlin, 1923	Reticulated Pirate Spider	Araneae	Accidental	GNR		○	○	○
Mimetus puritanus Chamberlin, 1923	Common Pirate Spider	Araneae	Accidental	GNR	AL	○	○	○
Minicreagris pumila (Muchmore, 1969)		Pseudoscorpiones	Troglophile	GNR	AL, GA	○	○	○
Mixojapyx reddelli Muegge, 1992		Dicellurata	Troglobiont	G3G4	TX	○	9	○
Mochlonyx cinctipes (Coquillett, 1903)		Diptera	Trogloxene	GNR		○	○	○
Molothrus ater (Boddaert, 1783)	Brown-Headed Cowbird	Passeriformes	Accidental	G5 LC	IL	○	○	○
Monopis crocicapitella (Clemens, 1859)	Bird Nest Moth	Lepidoptera	Trogloxene	GNR	AL, TN	○	○	○
Monopsyllus wagneri Baker, 1904		Siphonaptera	Accidental		IA	○	○	○
Montanabathynella pecosensis Camacho & Hutchins, 2021		Bathynellacea	Stygobiont		TX	○	○	○
Montanabathynella salish Camacho et al., 2009		Bathynellacea	Stygobiont	GNR	MT	○	○	○
Moraria cristata Chappuis, 1929		Harpacticoida	Stygoxene		IN	○	○	○
Mormoops megalophylla (Peters, 1864)	Ghost-Faced Bat	Chiroptera	Trogloxene	G5 LC	TX	○	○	○
Morone saxatilis (Walbaum, 1792)	Maryland Bass Hybrid	Acanthuriformes	Stygoxene	G3 LC	FL	○	○	○
Moxostoma erythrurum (Rafinesque, 1818)	Golden Redhorse	Cypriniformes	Stygoxene	G5 LC	KY	○	○	○
Mundochthonius cavernicola Muchmore, 1968		Pseudoscorpiones	Troglobiont	G1G2	IL, MO	○	○	○
Mundochthonius holsingeri Benedict & Malcolm, 1974		Pseudoscorpiones	Troglobiont	G1	VA	○	○	○
Mus musculus Linnaeus, 1758	House Mouse	Rodentia	Trogloxene	G5 LC	AL, KY	○	○	○
Musca domestica Linnaeus, 1758	Common House Fly	Diptera	Accidental	GNR	IN	○	○	○
Muscina prolapsa (Harris, 1780)	Muscoid Fly	Diptera	Trogloxene	GNR	GA	○	○	○
Musculium securis (Prime, 1852)		Sphaeriida	Accidental			○	○	○
Mustela nivalis Linnaeus, 1766	Least Weasel	Carnivora	Trogloxene	G5 LC		○	○	○
Mycetophila analis (Coquillett, 1901)		Diptera	Troglophile		IN	○	○	○
Mycetophila byersi (Laffoon, 1957)		Diptera	Troglophile	GNR		○	○	○
Mycetophila fisherae (Laffoon, 1957)		Diptera	Troglophile	GNR		○	○	○
Mycetophila ichneumonea Say, 1823		Diptera	Troglophile	GNR	IN, TN	○	○	○
Mycetophila ruficollis Meigen, 1818		Diptera	Troglophile			○	○	○
Mycetophila sordida Wulp, 1875		Diptera	Troglophile	GNR		○	○	○
Mycomya nitida (Zetterstedt, 1852)		Diptera	Troglophile	GNR		○	○	○
Myodopsylla insignis (Rothschild, 1903)	Bat Flea	Siphonaptera	Trogloxene	GNR	KY	○	○	○
Myotis austroriparius (Rhoads, 1897)	Southeastern Myotis	Chiroptera	Trogloxene	G4 LC	AL, AR, FL, GA, IL, KY	○	○	○
Myotis grisescens A. H. Howell, 1909	Gray Bat	Chiroptera	Trogloxene	G3 VU ESA	AL, AR, FL, GA, IL, KS, KY, MO, MS, OK, TN, VA	○	○	○
Myotis leibii (Audubon & Bachman, 1842)	Eastern Small-Footed Bat	Chiroptera	Trogloxene	G4 EN	AR, GA, KY, PA, TN, VA	○	○	○
Myotis lucifugus (Le Conte, 1831)	Little Brown Bat	Chiroptera	Trogloxene	G3 EN	AL, AR, GA, IL, IN, KY, PA, TN, VA	○	○	○
Myotis septentrionalis (Trouessart, 1897)	Northern Long-eared Bat	Chiroptera	Trogloxene	G2 NT ESA	AL, AR, FL, GA, IL, KY, OK, PA, TN, VA	○	○	○
Myotis sodalis Miller & G. M. Allen, 1928	Cluster Bat	Chiroptera	Trogloxene	G2 NT ESA	AL, AR, FL, GA, IL, KY, PA, TN, VA	○	○	○
Myotis velifer (J. A. Allen, 1890)	Cave Myotis	Chiroptera	Trogloxene	G4 LC		○	○	○
Myrmecina americana Emery, 1895	American Mite-Eating Ant	Hymenoptera	Accidental	G5	GA	○	○	○
Mystacides sepulchralis (Walker, 1852)	Black Dancer Caddisfly	Amblypygi	Troglophile	G5		○	○	○
Nadabius ameles Chamberlin, 1944		Lithobiomorpha	Trogloxene		MO	○	○	○
Nais variabilis Piguet, 1906	Aquatic Oligochaete Worm	Tubificida	Stygophile	GNR	WV	○	○	○
Namiotkocypria haysensis Kulkoyluoglu, 2018		Podocopida	Stygobiont		TX	○	○	○
Nampabius mycophor Chamberlin, 1940		Lithobiomorpha	Trogloxene		AL	○	○	○
Nampabius turbator Crabill, 1952		Lithobiomorpha	Troglobiont	G1	VA	○	○	○
Nannopetalum fontis Shear, 2003		Chordeumatida	Troglobiont		AL	○	○	○
Nannopetalum vespertilo Shear, 2003		Chordeumatida	Troglobiont		NC	○	○	○
Narceus americanus (Palisot de Beauvouis, 1817)	American Giant Millipede	Spirobolida	Trogloxene	G5	AL, AR, TN	○	○	○
Narceus annularis (Rafinesque, 1820)		Spirobolida	Trogloxene	G5	TN	○	○	○
Neanura hawaiiensis (Bellinger & Christiansen, 1974)		Poduromorpha	Troglobiont	G1G2	HI	○	○	○
Neanura muscorum (Templeton, R in Templeton, R & Westwood, JO, 1836)	Moss Springtail	Poduromorpha	Trogloxene	GNR	IA	○	○	○
Neanura persimilis Mills, HB, 1934		Poduromorpha	Trogloxene	GNR	IL	○	○	○
Neanura pseudoquadrioculata Stach, 1951		Poduromorpha	Trogloxene		IL	○	○	○
Neaphaenops tellkampfi (Erichson, 1844)		Coleoptera	Troglobiont	G3G4	KY, IN	○	○	○
Necrophilus pettitii Horn, 1880		Coleoptera	Trogloxene	GNR	AL, TN	○	○	○
Neelides minutus (Folsom, JW, 1901)		Neelipleona	Troglophile	GNR	GA, IA, IL	○	○	○
Nelima elegans (Weed, 1889)		Opiliones	Trogloxene		KY, TN	○	○	○
Nelima paessleri (Roewer, 1910)	Aggregating Harvestman	Opiliones	Trogloxene	GNR		○	○	○
Nelsonites jonesi Valentine, 1952		Coleoptera	Troglobiont	G2G3	KY	○	○	○
Nelsonites walteri Valentine, 1952		Coleoptera	Troglobiont	G3	TN	○	3	○
Nemadus hornii Hatch, 1933		Coleoptera	Troglophile		AL, GA, TN	○	○	○
Nemoura trispinosa Claassen, 1923		Plecoptera	Stygoxene		IL	○	○	○
Neoallochernes incertus Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	NM	○	○	○
Neoallochernes stercoreus (Turk, 1949)		Pseudoscorpiones	Troglobiont	G4	TX	○	10	○
Neobisnius paederoides (LeConte, J. L., 1863)		Coleoptera	Trogloxene	GNR	IL	○	○	○
Neochthonius imperialis Muchmore, 1996	Empire Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	1	○
Neochthonius troglodytes Muchmore, 1969		Pseudoscorpiones	Troglobiont	G2G3	CA	○	○	○
Neoechinorhynchus cylindratus (Van Cleave, 1913)		Neoechinorhynchida	Stygoxene		KY	○	○	○
Neogale vison (Schreber, 1777)	American Mink	Carnivora	Trogloxene	G5 LC	GA, IN	○	○	○
Neohelix albolabris (Say, 1817)	Eastern Whitelip	Stylommatophora	Trogloxene	G5		○	○	○
Neolithobius voracior Chamberlin (1912)		Lithobiomorpha	Trogloxene		GA	○	○	○
Neoporus clypealis (Sharp, 1882)		Coleoptera	Stygoxene	GNR	FL	○	○	○
Neoscona domiciliorum (Hentz, 1847)	Red-Femured Spotted Orbweaver	Araneae	Accidental	GNR		○	○	○
Neospintharus trigonum (Hentz, 1850)	Horned Parasitic Cobweaver	Araneae	Trogloxene	GNR	AL, IN	○	○	○
Neotoma floridana (Ord, 1818)	Eastern Woodrat	Rodentia	Trogloxene	G5 LC ESA	AL, AR, FL, GA, OK	○	○	○
Neotoma magister Baird, 1857	Allegheny Woodrat	Rodentia	Trogloxene	G3 NT	AL, IN, KY, TN, VA	○	○	○
Nepalomyia sombrea (Harmston & Knowlton, 1945)		Diptera	Trogloxene		GA	○	○	○
Neriene radiata (Walckenaer, 1841)	Filmy Dome Spider	Araneae	Trogloxene	G5	GA, IL, IN, KY	○	○	○
Nerodia erythrogaster (Forster, 1771)	Plain-Bellied Water Snake	Squamata	Accidental	G5 LC		○	○	○
Nerodia fasciata (Linnaeus, 1766)	Southern Water Snake	Squamata	Accidental	G5 LC	FL	○	○	○
Nerodia sipedon (Linnaeus, 1758)	Common Watersnake	Squamata	Accidental	G5 LC	GA, TN	○	○	○
Nesidiolestes ana Gagne & Howarth, 1974	Ana Wingless Thread Bug	Heteroptera	Troglobiont	G1G2 NE	HI	○	1	○
Nesticus barri Gertsch, 1984	Barr's Cave Spider	Araneae	Troglobiont	G3	AL, TN	○	4	57
Nesticus barrowsi Gertsch, 1984		Araneae	Troglobiont	G1G2	TN	○	4	9
Nesticus brimleyi Gertsch, 1984		Araneae	Troglobiont	G1G2	NC	○	7	9
Nesticus carolinensis (Bishop, 1950)	Linville Caverns Spider	Araneae	Troglophile	G2	NC	○	○	○
Nesticus carteri Emerton, 1875	Carter's Cave Spider	Araneae	Troglophile	GNR	IN, KY, TN, VA, WV	○	○	○
Nesticus cressleri Zigler & Milne, 2022		Araneae	Troglobiont	GNR	GA	○	2	8
Nesticus dilutus Gertsch, 1984	Grassy Creek Cave Spider	Araneae	Troglobiont	G1	TN	○	2	4
Nesticus furtivus Gertsch, 1984	Racoon Mountain Caverns Cave Spider	Araneae	Troglobiont	G1	TN	○	2	7
Nesticus georgia Gertsch, 1984	Georgia Cave Spider	Araneae	Troglobiont	G1G2	GA	○	2	4
Nesticus gertschi Coyle & McGarity, 1992		Araneae	Troglophile	G1	TN	○	○	○
Nesticus holsingeri Gertsch, 1984	Holsinger's Cave Spider	Araneae	Troglobiont	G3G4	VA	○	4	16
Nesticus jonesi Gertsch, 1984	Cave Spring Cave Spider	Araneae	Troglobiont	G1	AL	○	1	4
Nesticus lula Zigler & Milne, 2022		Araneae	Troglobiont	GNR	GA	○	2	6
Nesticus mimus Gertsch, 1984		Araneae	Troglophile	G3	VA	○	○	○
Nesticus paynei Gertsch, 1984		Araneae	Troglobiont	G3G4	TN, VA	○	18	27
Nesticus pecki Hedin & Dellinger, 2005	Monteagle Cave Spider	Araneae	Troglobiont	GNR	TN	○	3	4
Nesticus potterius (Chamberlin, 1933)		Araneae	Troglobiont	G1G2	CA	○	○	○
Nesticus reclusus Gertsch, 1984	Lost Nantahala Cave Spider	Araneae	Troglophile	G3	NC	○	○	○
Nesticus sodanus Gertsch, 1984		Araneae	Troglophile		CA	○	○	○
Nesticus stupkai Gertsch, 1984		Araneae	Troglophile		TN	○	○	○
Nesticus stygius Gertsch, 1984		Araneae	Troglobiont	G1G2	TN	○	3	7
Nesticus tennesseensis (Petrunkevitch, 1925)	Tennessee Cave Spider	Araneae	Troglobiont	G3G4	TN, VA, WV	○	10	25
Neuratelia sayi (Aldrich, 1897)		Diptera	Troglophile		IN	○	○	○
Nevadesmus hubbsi (Chamberlin, 1943)		Polydesmida	Troglobiont	GNR	NV	○	○	○
Nevadesmus ophimontis Shear, 2009		Polydesmida	Troglobiont		NV	○	1	○
Nevadesmus superstitiona Shear, Pape & Marek, 2025		Polydesmida	Troglobiont		AZ	○	○	○
Niptus arcanus Aalbu & Andrews, 1992		Coleoptera	Troglobiont		CA	○	18	○
Nitidotachinus scrutator (Gemminger & Harold, 1868)		Coleoptera	Trogloxene	GNR	IN	○	○	○
Nitocrellopsis texana Fiers & Iliffe, 2000		Harpacticoida	Stygobiont	GNR	TX	○	1	○
Nopoiulus kochii (Gervais, 1847)	Haakwang	Julida	Trogloxene	G5	KY, TN	○	○	○
Notemigonus crysoleucas (Mitchill, 1814)	Golden Shiner	Cypriniformes	Accidental	G5 LC	AL	○	○	○
Notiobia terminata (Say, 1823)		Coleoptera	Accidental	G5	AL	○	○	○
Notophthalmus viridescens (Rafinesque, 1820)	Eastern Newt	Caudata	Accidental	G5 LC	AL, GA, KY, TN	○	○	○
Notropis atherinoides Rafinesque, 1818	Emerald Shiner	Cypriniformes	Stygoxene	G5 LC	KY	○	○	○
Novobisium carolinense (Banks, 1895)		Pseudoscorpiones	Trogloxene		GA	○	○	○
Novobisium ingratum (J. C. Chamberlin, 1962)		Pseudoscorpiones	Troglophile	GNR	AL	○	○	○
Nycteridopsylla chapini Jordan, 1929		Siphonaptera	Trogloxene		KY	○	○	○
Nycticeius humeralis (Rafinesque, 1818)	Evening Bat	Chiroptera	Trogloxene	G5 LC	AL, AR, KY	○	○	○
Nyctinomops femorosaccus (Merriam, 1889)	Pocketed Free-Tailed Bat	Chiroptera	Trogloxene	G5 LC		○	○	○
Oaphantes prometheus Paquin et al., 2020		Araneae	Troglobiont		CA	○	2	○
Occasjapyx kofoidi (Silvestri, 1928)		Dicellurata	Troglobiont		CA	○	○	○
Ochrotrichia spinosa (Ross, 1938)		Trichoptera	Trogloxene	G5	AR	○	○	○
Ocrepeira ectypa (Walckenaer, 1841)		Araneae	Accidental	GNR	AL	○	○	○
Octolasion lacteum (Örley, 1881)	White Worm	Crassiclitellata	Troglophile		TN, WV	○	○	○
Octolasion tyrtaeum (Savigny in Cuvier, 1826)	Woodland White Worm	Crassiclitellata	Troglophile	GNR	AL, GA, IL, NC, TN, VA	○	○	○
Odiellus pictus (Wood, 1868)	Painted Harvestman	Opiliones	Trogloxene	GNR		○	○	○
Odocoileus virginianus (Zimmermann, 1780)	White-Tailed Deer	Artiodactyla	Accidental	G5 LC ESA	AL, FL, KY	○	○	○
Odontotaenius disjunctus (Illiger, 1800)	Patent Leather Beetle	Coleoptera	Accidental	GNR	IL	○	○	○
Oecothea fenestralis (Fallén, 1820)		Diptera	Trogloxene	GNR	IN, KY, TN	○	○	○
Oecothea specus (Aldrich, 1897)	Small Cave Sun Fly	Diptera	Troglophile		AL, AR, GA, IA, IL, IN, KY, TN, VA, WI	○	○	○
Oedipodrilus macbaini (Holt, 1955)		Branchiobdellida	Stygophile		TN	○	○	○
Oliarus gagneri Hoch & Howarth, 1999		Homoptera	Troglobiont	G1G2	HI	○	○	○
Oliarus kalaupapae Hoch & Howarth, 1999		Homoptera	Troglobiont	G1G2	HI	○	○	○
Oliarus lorettae Hoch & Howarth, 1999		Homoptera	Troglobiont	G1G2	HI	○	○	○
Oliarus makaiki Hoch & Howarth, 1999		Homoptera	Troglobiont	G1G2	HI	○	○	○
Oliarus polyphemus Fennah, 1973		Homoptera	Troglobiont	G1G2	HI	○	4	29
Oliarus priola Fennah, 1973		Homoptera	Troglobiont	G1G2	HI	○	2	○
Oliarus waikau Hoch & Howarth, 1999		Homoptera	Troglobiont	G1G2	HI	○	○	○
Omalium rivulare (Paykull, 1789)	Ocillate Rove Beetle	Coleoptera	Trogloxene	GNR	TN	○	○	○
Omorgus alatus (MacLeay, 1888)		Coleoptera	Trogloxene			○	○	○
Omorgus amictus (Haaf, 1954)		Coleoptera	Trogloxene			○	○	○
Omorgus batesi (Harold, 1872)		Coleoptera	Trogloxene			○	○	○
Omorgus brucki (Harold, 1872)		Coleoptera	Trogloxene			○	○	○
Omorgus carinatus Loomis, 1922		Coleoptera	Trogloxene			○	○	○
Omorgus costatus (Wiedemann, 1823)		Coleoptera	Trogloxene			○	○	○
Omorgus fuliginosus (Robinson, 1941)		Coleoptera	Trogloxene			○	○	○
Omorgus lindemannae (Petrovitz, 1975)		Coleoptera	Trogloxene			○	○	○
Omorgus punctatus (Germar, 1823)		Coleoptera	Trogloxene			○	○	○
Omorgus rubricans (Robinson, 1946)		Coleoptera	Trogloxene			○	○	○
Omorgus suberosus (Fabricius, 1775)	Hide Beetle	Coleoptera	Trogloxene	GNR		○	○	○
Oncopodura cruciata Bonet, 1943		Entomobryomorpha	Troglobiont	G1G2	MT	○	10	○
Oncopodura fenestra Christiansen & Bonet, 1996		Entomobryomorpha	Troglobiont	G2G3	TX	○	1	○
Oncopodura hoffi Christiansen & Bonet, 1980	Hoff's Cave Springtail	Entomobryomorpha	Troglobiont	G1G2	MO	○	3	○
Oncopodura hubbardi Christiansen & Bellinger 1996		Entomobryomorpha	Troglobiont	G2	VA	○	1	○
Oncopodura iowae Christiansen, 1980		Entomobryomorpha	Troglobiont	G3G4	IA, IL, MO	○	3	○
Oncopodura mala Christiansen, K & Bellinger, P, 1996	Malheur Cave Springtail	Entomobryomorpha	Troglophile	G2	CA, OR	○	○	○
Oncopodura prietoi Bonet, 1943		Entomobryomorpha	Troglobiont	G1G2	NM, Mexico	○	2	○
Oncopodura subhoffi Christiansen & Bellinger, 1998		Entomobryomorpha	Troglobiont	G3	CO	○	2	○
Oniscus asellus Linnaeus, 1758	Common Shiny Woodlouse	Isopoda	Trogloxene	GNR		○	○	○
Onychiurus eous Christiansen & Bellinger, 1980		Poduromorpha	Troglophile		IA	○	○	○
Onychiurus gelus Christiansen & Bonet, 1980		Poduromorpha	Troglobiont	G2G3	IA, WA, WI	○	○	○
Onychiurus janus Christiansen & Bellinger, 1980		Poduromorpha	Troglobiont	G2G3	AL, VA, WV	○	○	○
Onychiurus obesus Mills, 1934		Poduromorpha	Troglobiont	G3G4	IA, MN, MO, WI	○	○	○
Onychiurus opus Christiansen & Bellinger, 1980		Poduromorpha	Troglophile		IA	○	○	○
Onychiurus oregonensis Bonet, 1931		Poduromorpha	Troglobiont	G1G2	OR	○	○	○
Onychiurus paro Christiansen & Bellinger, 1980		Poduromorpha	Troglobiont	G1	AL	○	○	○
Onychiurus parvicornis Mills, 1934		Poduromorpha	Troglophile		IA	○	○	○
Onychiurus pipistrellae Soto-Adames & Taylor, 2013		Poduromorpha	Troglobiont		IL	○	○	○
Onychiurus pseudoarmatus Aitchison, CW, 1984		Poduromorpha	Trogloxene		TN	○	○	○
Onychiurus pseudofimetarius Folsom, 1917		Poduromorpha	Troglophile		TN	○	○	○
Onychiurus reluctus Christiansen, 1961		Poduromorpha	Troglobiont	GNR	WV, Mexico, IA, IL, TN	○	9	○
Onychiurus similis Folsom, 1917		Poduromorpha	Troglophile		IA	○	○	○
Opheodrys aestivus (Linnaeus, 1766)	Greensnake	Squamata	Accidental	G5 LC	AR	○	○	○
Ophisaurus ventralis (Linnaeus, 1766)	Eastern Glass Lizard	Squamata	Accidental	G5 LC	FL	○	○	○
Ophyiulus pilosus (Newport, 1843)	Furry Snake Millipede	Julida	Trogloxene	G5	AL, KY, TN	○	○	○
Opiona catorycha Shear & Crawford, 2019		Chordeumatida	Troglobiont		OR	○	○	○
Opiona graeningi Shear, 2011		Chordeumatida	Troglobiont		CA	○	1	○
Oppia nitens Koch, 1835		Sarcoptiformes	Accidental	GNR	IA	○	○	○
Orchesella hexfasciata (Harvey, FL, 1895)		Entomobryomorpha	Accidental	GNR	IA	○	○	○
Orchopeas leucopus (Baker, 1904)	Pulga	Siphonaptera	Trogloxene	GNR		○	○	○
Orchopeas sexdentatus (Baker, 1904)		Siphonaptera	Trogloxene		KY, VA	○	○	○
Orconectes australis (Rhoades, 1941)	Southern Cave Crayfish	Decapoda	Stygobiont	G5 LC	AL, TN, KY	○	158	152
Orconectes barri Buhay & Crandall, 2008	Cumberland Plateau Cave Crayfish	Decapoda	Stygobiont	G2 DD	KY, TN	○	14	66
Orconectes incomptus Hobbs & Barr, 1972	Tennessee Cave Crayfish	Decapoda	Stygobiont	G2 VU	TN	○	8	17
Orconectes inermis Cope, 1872	Ghost Crayfish	Decapoda	Stygobiont	G5 LC	IN, KY, TN	○	114	3
Orconectes packardi Rhoades, 1944	Appalachian Cave Crayfish	Decapoda	Stygobiont	G2 EN	KY, TN	○	34	33
Orconectes pellucidus (Tellkampf, 1844)	Mammoth Cave Crayfish	Decapoda	Stygobiont	G4 LC	KY, TN, AL, IN	○	139	2
Oregonasellus elliotti Lewis, 2008		Isopoda	Stygobiont		OR	○	○	○
Oreonetides beattyi Paquin et al., 2009	Beatty's Sheetweb Cave Spider	Araneae	Troglobiont	GNR	IN, MD, PA, TN, VA	○	○	○
Oreonetides vaginatus (Thorell, 1872)	Undergrowth Sheet-Web Weaver	Araneae	Troglophile	G5		○	○	○
Oreophantes recurvatus (Emerton, 1913)		Araneae	Troglophile	G5		○	○	○
Orfelia elegans (Coquillett, 1895)		Diptera	Troglophile			○	○	○
Origanates rostratus (Emerton, 1882)		Araneae	Trogloxene	GNR	AL, TN	○	○	○
Ormosia affinis (Lundbeck, 1898)	Cranefly	Diptera	Trogloxene	GNR		○	○	○
Ormosia meigenii (Osten Sacken, 1860)		Diptera	Trogloxene	GNR	IN	○	○	○
Oropsylla arctomys (Baker, 1904)		Siphonaptera	Accidental	GNR	IA	○	○	○
Orthocyclops modestus (Herrick, 1883)		Cyclopoida	Stygoxene		IL, IN, TN	○	○	○
Orus rubens (Casey, 1905)		Coleoptera	Troglophile		NM	○	○	○
Oryzaephilus surinamensis (Linnaeus, 1758)	Sawtoothed Grain Beetle	Coleoptera	Accidental	GNR	IA	○	○	○
Osphranticum labronectum Forbes S.A., 1882		Calanoida	Stygoxene		KY, TN	○	○	○
Osteopilus septentrionalis (Duméril & Bibron, 1841)	Cuban Treefrog	Anura	Accidental	G5 LC	FL	○	○	○
Otiorhynchus ovatus (Linnaeus, 1758)	Strawberry Root Weevil	Coleoptera	Accidental	GNR		○	○	○
Otostigmus cooperi Chamberlin, 1942		Scolopendromorpha	Troglophile			○	○	○
Oxidus gracilis (Koch, 1847)	Greenhouse Millipede	Polydesmida	Troglophile	G5	AL, FL, GA, KY, OK, PA, TN, VA	○	○	○
Oxyopes salticus Hentz, 1845	Lynx Spider	Araneae	Accidental	GNR	AL	○	○	○
Oxytelus exiguus Erichson, 1840		Coleoptera	Trogloxene		IL	○	○	○
Ozarkia alabama (Gertsch, 1974)		Araneae	Troglobiont	GNR	AL	○	27	○
Ozarkia arkansa (Gertsch, 1974)		Araneae	Troglobiont		AR	○	8	○
Ozarkia blanda (Gertsch, 1974)		Araneae	Troglobiont	GNR	AL	○	1	○
Ozarkia georgia (Gertsch, 1974)		Araneae	Troglobiont	GNR	GA	○	25	○
Ozarkia novaegalleciae (Brignoli, 1979)		Araneae	Troglobiont		NM	○	○	○
Ozarkia serena (Gertsch, 1974)		Araneae	Troglobiont	G1G2	AL	○	15	○
Pachydesmus crassicutis (Wood, 1864)		Polydesmida	Accidental	G5	AL	○	○	○
Pacificabathynella kalispellensis Camacho et al., 2009		Bathynellacea	Stygobiont	GNR	MT	○	○	○
Pacificabathynella ruthae Camacho et al., 2009		Bathynellacea	Stygobiont	GNR	MT	○	○	○
Pacificabathynella sequoiae Schminke & Noodt, 1988		Bathynellacea	Stygobiont	GNR	CA, WA	○	5	○
Pacificabathynella stanfordi Camacho et al., 2009		Bathynellacea	Stygobiont	GNR	MT	○	○	○
Pacificabathynella yupik Camacho et al., 2016		Bathynellacea	Stygobiont		AK	○	47	○
Packardesmus cavicola (Packard, 1877)		Polydesmida	Troglophile		UT	○	○	○
Paeromopus cavicolens Chamberlin, 1953		Julida	Troglophile		CA	○	○	○
Paitobius arienus Chamberlin (1911)		Lithobiomorpha	Trogloxene		AL	○	○	○
Paitobius carolinae Chamberlin (1911)		Lithobiomorpha	Trogloxene		AL	○	○	○
Paitobius juventus Bollman (1887)		Lithobiomorpha	Trogloxene		AL	○	○	○
Palaemon kadiakensis (M. J. Rathbun, 1902)	Mississippi Grass Shrimp	Decapoda	Accidental	G5	FL	○	○	○
Palaemon paludosus (Gibbes, 1850)	Eastern Grass Shrimp	Decapoda	Stygoxene	G5	FL	○	○	○
Palaemonetes antrorum Benedict, 1896	Balcones Cave Shrimp	Decapoda	Stygobiont	G2G3 EN	TX	○	○	○
Palaemonetes cummingi Chace, 1954	Squirrel Chimney Cave Shrimp	Decapoda	Stygobiont	GH CR ESA	FL	○	○	○
Palaemonias alabamae Smalley, 1961	Alabama Cave Shrimp	Decapoda	Stygobiont	G1 EN ESA	AL	○	5	14
Palaemonias ganteri Hay, 1901	Mammoth Cave Shrimp	Decapoda	Stygobiont	G1 VU ESA	KY	○	11	○
Paleonura petebellingeri Palacios-Vargas & Benito, 2007		Poduromorpha	Troglobiont	G1	VA	○	○	○
Pangaeus docilis (Walker, 1867)		Hemiptera	Troglophile			○	○	○
Panstrongylus geniculatus (Latreille, 1811)	Barbeiro	Heteroptera	Trogloxene			○	○	○
Pantelozetes cavaticus (Kunst, 1962)		Sarcoptiformes	Trogloxene		TN	○	○	○
Pantherophis guttatus (Linnaeus, 1766)	Corn Snake	Squamata	Trogloxene	G5 LC		○	○	○
Pantherophis obsoletus (Say, 1823)	Pilot Black Snake	Squamata	Trogloxene	G5 LC	AR, KY	○	○	○
Pantherophis quadrivittatus (Holbrook, 1836)	Yellow Rat Snake (Quadrivittata)	Squamata	Trogloxene		FL	○	○	○
Pantherophis spiloides (Duméril, Bibron, & Duméril, 1854)	Gray Rat Snake	Squamata	Trogloxene	G4 LC	AL, FL	○	○	○
Parabogidiella americana Holsinger, 1980		Amphipoda	Stygobiont	G2G3	TX	○	65	4
Paracyclops canadensis (Willey, 1934)		Cyclopoida	Stygoxene		IN	○	○	○
Paracyclops chiltoni (Thomson G.M., 1883)		Cyclopoida	Stygoxene		IN, KY	○	○	○
Paracyclops poppei (Rehberg, 1880)	Copepod	Cyclopoida	Stygoxene	GNR	KY	○	○	○
Paragnetina media (Walker, 1852)	Embossed Stone	Plecoptera	Stygoxene	G4		○	○	○
Paraholsingerius smaragdinus (Holsinger, 1992)		Amphipoda	Stygobiont	GNR	TX	○	17	○
Parametriocnemus lundbeckii (Johannsen, 1905)		Diptera	Trogloxene	GNR		○	○	○
Paramexiweckelia ruffoi Holsinger, 1993	Ruffo's Cave Amphipod	Amphipoda	Stygobiont	G1G2	TX	○	40	○
Paramoera lokowai Barnard, 1977		Amphipoda	Stygobiont	G1G2	HI	○	6	○
Paramoera paakai Barnard, 1977		Amphipoda	Stygobiont	G1G2	HI	○	17	○
Paramoera rua Barnard, 1977		Amphipoda	Stygobiont	G1G2	HI	○	11	○
Paraplanaria occulta (Kenk, 1969)		Tricladida	Stygophile		VA	○	○	○
Pararhynchelmis texana Fend, 2023		Lumbriculida	Stygobiont		TX	○	7	○
Parascalops breweri (Bachman, 1842)	Brewer's Mole	Eulipotyphla	Accidental	G5 LC	KY	○	○	○
Parasitus fimetorum (Berlese, 1904)		Mesostigmata	Trogloxene		TN	○	○	○
Parasitus remberti (Oudemans, 1912)		Mesostigmata	Troglophile		IA	○	○	○
Parasteatoda tepidariorum (Koch, 1841)	Common House Spider	Araneae	Troglophile	GNR	AL, AR, GA, IL, KY, TN, VA	○	○	○
Paratachys aaa Liebherr, 2021		Coleoptera	Troglobiont		HI	○	○	○
Paratheridula perniciosa (Keyserling, 1886)	Cobweb Spiders	Araneae	Troglophile			○	○	○
Paravachonium bolivari Beier, 1956		Pseudoscorpiones	Troglophile			○	○	○
Paravitrea capsella (A. A. Gould, 1851)		Stylommatophora	Trogloxene		KY, TN	○	○	○
Paravitrea multidentata (A. Binney, 1840)	Dentate Supercoil	Stylommatophora	Trogloxene	G5	TN	○	○	○
Parazaona cavicola Chamberlin, 1938		Pseudoscorpiones	Troglophile			○	○	○
Paria sexnotata (Say, 1824)	Juniper Paria	Coleoptera	Accidental	GNR	AR	○	○	○
Parisotoma notabilis (Schäffer, 1896)		Entomobryomorpha	Troglophile	GNR	FL, IA, IL, MN, MO, TN, WI	○	○	○
Parobisium charlotteae Chamberlin, 1962		Pseudoscorpiones	Troglobiont	G1G2	OR	○	3	6
Parobisium petilum Harvey & Cullen, 2020		Pseudoscorpiones	Troglobiont		CA	○	1	○
Parobisium yosemite Cokendolpher & Krejca, 2010		Pseudoscorpiones	Troglobiont		CA	○	○	○
Parvidrilus strayeri Erseus, 1999		Lumbriculida	Stygobiont	G1G2	AL	○	17	○
Patera appressa (Say, 1821)	Flat Bladetooth	Stylommatophora	Trogloxene	G5	AL, GA, KY, TN, VA	○	○	○
Patera laevior (Pilsbry, 1940)	Smooth Bladetooth	Stylommatophora	Trogloxene	G4	KY, TN	○	○	○
Patera perigrapta (Pilsbry, 1894)	Engraved Bladetooth	Stylommatophora	Trogloxene	G5	AL, GA, TN	○	○	○
Patera sargentiana (C. W. Johnson & Pilsbry, 1892)	Grand Bladetooth	Stylommatophora	Trogloxene	G2	AL	○	○	○
Patrobus longicornis (Say, 1823)	Long-Horned Patrobus Beetle	Coleoptera	Trogloxene	G5	AL, IL, IN, KY, MO	○	○	○
Pegoplata infirma (Meigen, 1826)		Diptera	Trogloxene	GNR		○	○	○
Pelegrina exigua (Banks, 1892)		Araneae	Accidental	GNR	IL	○	○	○
Pelegrina proterva (Walckenaer, 1837)	Common White-Cheeked Jumping Spider	Araneae	Accidental	G5	IL	○	○	○
Penaeus setiferus (Linnaeus, 1767)	Northern White Shrimp	Decapoda	Stygoxene	GNR	FL	○	○	○
Percina caprodes (Rafinesque, 1818)	Common Logperch	Perciformes	Accidental	G5 LC	AL, KY	○	○	○
Percina nigrofasciata (Agassiz, 1854)	Blackbanded Darter	Perciformes	Accidental	G5 LC		○	○	○
Percymoorensis lateralis (Say, 1824)		Arhynchobdellida	Stygoxene			○	○	○
Perichaeta minima Horst, 1894		Crassiclitellata	Troglophile		GA	○	○	○
Pericoma scotiae (Curran, 1924)		Diptera	Trogloxene		TN	○	○	○
Perimyotis subflavus (F. Cuvier, 1832)	Tricolored Bat	Chiroptera	Trogloxene	G3 VU	AL, AR, CT, FL, GA, IL, IN, KS, KY, MA, MO, MS, NC, NJ, NY, OH, OK, ON, PA, TN, TX, VA, WI, WV	○	○	○
Periplaneta americana (Linnaeus, 1758)	American Cockroach	Blattodea	Trogloxene	GNR		○	○	○
Perissopalla flagellisetula Brennan & White, 1960		Trombidiformes	Trogloxene		AL	○	○	○
Peromyscopsylla hesperomys (Baker, 1904)		Siphonaptera	Trogloxene	GNR	TN	○	○	○
Peromyscus attwateri J. A. Allen, 1895	Attwater's Mouse	Rodentia	Trogloxene	G5 LC	AR	○	○	○
Peromyscus boylii (Baird, 1855)	Brush Deermouse	Rodentia	Trogloxene	G5 LC	NM	○	○	○
Peromyscus gossypinus (Le Conte, 1853)	Cotton Deermouse	Rodentia	Trogloxene	G5 LC	FL	○	○	○
Peromyscus leucopus (Rafinesque, 1818)	White-Footed Deermouse	Rodentia	Trogloxene	G5 LC	IN, KY, NM, TN	○	○	○
Peromyscus maniculatus (Wagner, 1845)	Deer Mouse	Rodentia	Trogloxene	G5 LC	IL	○	○	○
Perpolita binneyana (E. S. Morse, 1864)	Blue Glass	Stylommatophora	Trogloxene			○	○	○
Petrochelidon pyrrhonota (Vieillot, 1817)	American Cliff Swallow	Passeriformes	Trogloxene	G5 LC	OK	○	○	○
Phagocata angusta Kenk, 1977		Tricladida	Stygobiont	G1	WV	○	7	○
Phagocata bursaperforata Darlington, 1959		Tricladida	Stygophile		AL	○	○	○
Phagocata carolinensis Kenk, 1979		Tricladida	Stygobiont	G1G2	NC	○	4	○
Phagocata gracilis (Haldeman, 1840)	Slender Spring Flatworm	Tricladida	Stygophile	G5	IL, IN, KY, MO, OH, PA, VA	○	○	○
Phagocata holleri Kenk, 1979	Holler's Cave Flatworm	Tricladida	Stygobiont	G1G2	NC	○	4	○
Phagocata morgani (Stevens & Boring, 1906)		Tricladida	Stygophile	G4	AL, KY, MD, NC, NY, VA, VT, WV	○	○	○
Phagocata notorchis Kenk, 1987		Tricladida	Stygobiont		TN	○	4	○
Phagocata oregonensis Hyman, 1963	Oregon Cave Flatworm	Tricladida	Stygobiont	G1G2	OR	○	○	○
Phagocata procera Kenk, 1984		Tricladida	Stygobiont	G1G2	NC	○	14	○
Phagocata pygmaea Kenk, 1987		Tricladida	Stygobiont		NC	○	2	○
Phagocata spuria Kenk, 1987		Tricladida	Stygobiont		NC	○	3	○
Phalangodes armata Tellkampf, 1844		Opiliones	Troglobiont	G3G4	KY, IN	○	15	4
Phanetta subterranea (Emerton, 1875)	Subterranean Sheetweb Spider	Araneae	Troglobiont	G5	AL, AR, GA, IL, IN, KY, MO, NC, OH, TN, VA, WV	○	9	47
Phaonia soccata (Walker, 1849)		Diptera	Accidental	GNR		○	○	○
Phelister fulvulus Marseul, 1870		Coleoptera	Trogloxene			○	○	○
Phelister luculentus Bickhardt, 1917	Escarabajo Payaso	Coleoptera	Trogloxene			○	○	○
Phenacomys intermedius Merriam, 1889	Heather Vole	Rodentia	Trogloxene	G5 LC		○	○	○
Pheretima rodericensis (Grube, 1879)		Crassiclitellata	Troglophile			○	○	○
Phidippus purpuratus Keyserling, 1885	Marbled Purple Jumper	Araneae	Accidental	G5		○	○	○
Philomycus carolinianus (Bosc, 1802)	Carolina Mantleslug	Stylommatophora	Trogloxene	G5	FL	○	○	○
Philomycus togatus (A. A. Gould, 1841)	Toga Mantleslug	Stylommatophora	Trogloxene	G5	IL, KY	○	○	○
Philonthus cyanipennis (Fabricius, 1792)	Staph Beetle	Coleoptera	Trogloxene		GA	○	○	○
Philonthus lomatus Erichson, 1840		Coleoptera	Trogloxene	G5	IN	○	○	○
Phoberus capensis (Scholtz, 1979)		Coleoptera	Trogloxene			○	○	○
Phoberus pusillus (Péringuey, 1908)		Coleoptera	Trogloxene			○	○	○
Phoberus sulcatus (Thunberg, 1787)	Grooveneck Keratin Beetle	Coleoptera	Trogloxene			○	○	○
Pholcus dade Huber, 2011		Araneae	Troglophile		GA	○	○	○
Pholcus jusahi Huber, 2011		Araneae	Troglophile		VA	○	○	○
Pholcus lanieri Huber, 2011		Araneae	Troglophile		GA	○	○	○
Pholcus phalangioides (Fuesslin, 1775)	Cosmopolitan Cellar Spider	Araneae	Troglophile	GNR	IL, KY, NM, TN	○	○	○
Phoxinus erythrogaster (Rafinesque, 1820)		Cypriniformes	Stygoxene		KY	○	○	○
Phreatoceras taylori (Hershler & Longley, 1986)	Nymph trumpet	Littorinimorpha	Stygobiont	G1G2 DD	TX	○	20	5
Phreatodrobia bulla Perez & Castañeda, 2023		Littorinimorpha	Stygobiont		TX	○	○	4
Phreatodrobia conica Hershler & Longley, 1986	Hueco Cavesnail	Littorinimorpha	Stygobiont	G1	TX	○	27	7
Phreatodrobia coronae Hershler, 1987		Littorinimorpha	Stygobiont	G1G2 DD	TX	○	9	○
Phreatodrobia embossa Perez et al., 2025		Littorinimorpha	Stygobiont		TX	○	○	○
Phreatodrobia imitata Hershler & Longley, 1986	Mimic cavesnail	Littorinimorpha	Stygobiont	G1 VU	TX	○	42	2
Phreatodrobia micra (Pilsbry & Ferriss, 1906)	Flattened Cavesnail	Littorinimorpha	Stygobiont	G2G3	TX, AL	○	573	10
Phreatodrobia nugax (Pilsbry & Ferriss, 1906)	Domed Cavesnail	Littorinimorpha	Stygobiont	G1G2 DD	TX	○	103	13
Phreatodrobia plana Hershler & Longley, 1986	Disc cavesnail	Littorinimorpha	Stygobiont	G2	TX	○	7	3
Phreatodrobia punctata Hershler & Longley, 1986	High-hat cavesnail	Littorinimorpha	Stygobiont	G2	TX	○	12	3
Phreatodrobia rotunda Hershler & Longley, 1986	Beaked cavesnail	Littorinimorpha	Stygobiont	G1G2 DD	TX	○	9	8
Phreatodrobia spica Perez & Alvear, 2020	Spiky Cavesnail	Littorinimorpha	Stygobiont	GNR	TX	○	7	1
Phronia exigua (Zetterstedt, 1852)		Diptera	Troglophile	GNR		○	○	○
Phronia flavipes Winnertz, 1864		Diptera	Troglophile	GNR		○	○	○
Phronia incerta (Adams, 1907)		Diptera	Troglophile		IN	○	○	○
Physella acuta (Draparnaud, 1805)	European Physa	Basommatophora	Stygophile		IL, MO	○	○	○
Physella gyrina (Say, 1821)	Tadpole Physa	Basommatophora	Stygophile	G5 LC	GA	○	○	○
Physella spelunca Turner & Clench, 1974	Cave Physa	Basommatophora	Stygobiont	G1 VU	WY	○	11	4
Physocyclus enaulus Crosby, 1926		Araneae	Troglophile		NM	○	○	○
Physocypria denticulata (Daday, 1905)		Podocopida	Stygophile		TX	○	○	○
Physocypria globula Furtos, 1933		Podocopida	Stygophile		TX	○	○	○
Pimephales promelas Rafinesque, 1820	Fathead Minnow (Rosy Reds)	Cypriniformes	Stygoxene	G5 LC	KY	○	○	○
Pimoa altioculata (Keyserling, 1886)		Araneae	Accidental	GNR		○	○	○
Pinodytes pusio Horn, 1892		Coleoptera	Troglophile		CA	○	○	○
Pinodytes rothi (Hatch, 1957)		Coleoptera	Troglophile		OR	○	○	○
Pirata alachuus Gertsch & Wallace, 1935		Araneae	Accidental	GNR	GA	○	○	○
Pirata sedentarius Montgomery, 1904		Araneae	Trogloxene	GNR	IL, TN	○	○	○
Piratula insularis (Emerton, 1885)	Lonely Wolf Spider	Araneae	Accidental	G5	GA	○	○	○
Pisaurina mira (Walckenaer, 1837)	Nursery Web Spider	Araneae	Accidental	G5	AL, IL	○	○	○
Plathemis lydia (Drury, 1773)	Common Whitetail or Long-Tailed Skimmer	Odonata	Accidental	G5 LC	MO	○	○	○
Platynus angustatus Dejean, 1828		Coleoptera	Trogloxene	GNR	KY	○	○	○
Platynus cincticollis (Say, 1823)		Coleoptera	Troglophile	GNR	IN	○	○	○
Platynus parmarginatus Hamilton, 1893		Coleoptera	Trogloxene	GNR	GA	○	○	○
Platynus tenuicollis (LeConte, 1846)	Slender Ground Beetle	Coleoptera	Troglophile	G5	AL, AR, IL, IN, KY, MO, TN, VA	○	○	○
Plestiodon fasciatus (Linnaeus, 1758)	Common Five-Lined Skink	Squamata	Accidental	G5 LC	AR, KY	○	○	○
Plethodon albagula Grobman, 1944	Western Slimy Salamander	Caudata	Troglophile	G5 LC	AR, OK	○	○	○
Plethodon angusticlavius Grobman, 1944	Ozark Salamander	Caudata	Troglophile	G4 LC	AR, OK	○	○	○
Plethodon caddoensis Pope & Pope, 1951	Caddo Mountain Salamander	Caudata	Trogloxene	G2 NT		○	○	○
Plethodon cinereus (Green, 1818)	Eastern Red-Backed Salamander	Caudata	Trogloxene	G5 LC	IN, OH	○	○	○
Plethodon dorsalis Cope, 1889	Northern Zigzag Salamander	Caudata	Troglophile	G5 LC	IL, IN, KY, TN	○	○	○
Plethodon glutinosus (Green, 1818)	Northern Slimy Salamander	Caudata	Troglophile	G5 LC	AL, GA, IL, IN, KY, OH, TN, VA	○	○	○
Plethodon grobmani Allen & Neill, 1949	Southeastern Slimy Salamander	Caudata	Troglophile	G5	FL	○	○	○
Plethodon petraeus Wynn, Highton & Jacobs, 1988	Pigeon Mountain Salamander	Caudata	Troglophile	G2 NT	GA	○	○	○
Plethodon richmondi Netting & Mittleman, 1938	Ravine Salamander	Caudata	Trogloxene	G5 LC	KY, WV	○	○	○
Plethodon serratus Grobman, 1944	Southern Red-Backed Salamander	Caudata	Accidental	G5 LC	AR, GA	○	○	○
Plethodon ventralis Highton, 1997	Southern Zigzag Salamander	Caudata	Troglophile	G4 LC	AL, GA, TN	○	○	○
Plethodon websteri Highton, 1979	Webster's Salamander	Caudata	Trogloxene	G3 LC	AL	○	○	○
Plumatyla humerosa (Loomis, 1943)		Chordeumatida	Troglobiont	G2G3	CA	○	2	○
Plutomurus californicus (Folson, 1913)		Entomobryomorpha	Troglobiont	G2G3	CA, Mexico	○	13	○
Plutomurus grahami (Christiansen, 1980)		Entomobryomorpha	Troglobiont	G1	NM	○	2	○
Pnyxia scabiei (Hopkins, 1895)	Potato Scab Gnat	Diptera	Trogloxene		KY	○	○	○
Poecilochirus carabi Canestrini & Canestrini, 1882		Mesostigmata	Trogloxene		TN	○	○	○
Poecilophysis extraneostella Zacharda 1985		Actinedida	Troglobiont	G2	VA, WV	○	○	○
Poecilophysis pratensis (C. L. Koch, 1835)	Mite	Actinedida	Troglophile		WV	○	○	○
Poecilophysis weyerensis (Packard, 1888)		Actinedida	Troglobiont	G3	KY, TN, VA, WV, IN	○	○	○
Pogonognathellus bidentatus (Folsom, JW, 1913)		Entomobryomorpha	Troglophile	GNR	AL, GA, IL, KY, TN, VA	○	○	○
Pogonognathellus danieli Felderhoff, KL, Bernard, EC & Moulton, JK, 2010		Entomobryomorpha	Troglophile		VA	○	○	○
Pogonognathellus dubius (Christiansen, 1964)	Ghost Silver Bullet Springtail	Entomobryomorpha	Troglophile	GNR	AL, GA, KY, TN	○	○	○
Pogonognathellus flavescens Dethier & Hubart, 2000		Entomobryomorpha	Troglophile		AL, GA, IA, IL, IN, KY, MO, WI	○	○	○
Pogonognathellus nigritus (Maynard, EA, 1951)		Entomobryomorpha	Troglophile		IL, TN	○	○	○
Polycentropus barri Ross & Yamamoto		Trichoptera	Stygoxene	G3	KY	○	○	○
Polycentropus elarus Ross, 1944		Trichoptera	Stygoxene	G3	KY	○	○	○
Polydesmus inconstans Latzel, 1884	European Sculpted Millipede	Polydesmida	Accidental	G4	IL, PA	○	○	○
Polydrusus impressifrons Gyllenhal, 1834	Pale Green Weevil	Coleoptera	Accidental	GNR		○	○	○
Polygonia comma (Harris, 1852)	Eastern Comma	Lepidoptera	Accidental	G5	KY	○	○	○
Polynoncus gemmingeri (Harold, 1872)		Coleoptera	Trogloxene			○	○	○
Polysphondylium violaceum Bref., 1884		Dictyosteliales	Stygophile		GA	○	○	○
Pomatiopsis lapidaria (Say, 1817)	Slender Walker	Littorinimorpha	Stygoxene	G5 LC	IL, TN	○	○	○
Pomoxis nigromaculatus (Lesueur, 1829)	Black Crappie	Centrarchiformes	Stygoxene	G5 LC	FL	○	○	○
Ponera pennsylvanica Buckley, 1866	Common Porthole Ant	Hymenoptera	Accidental	G5	KY	○	○	○
Porcellio laevis Latreille, 1804	Smooth Slater	Isopoda	Trogloxene		TN	○	○	○
Porcellio scaber Latreille, 1804	Common Rough Woodlouse	Isopoda	Trogloxene	GNR	IN	○	○	○
Porcellio spinicornis Say, 1818	Painted Woodlouse	Isopoda	Trogloxene	GNR		○	○	○
Porrhomma cavernicola (Keyserling, 1886)	Appalachian Cave Spider	Araneae	Troglobiont	G5	AL, AR, GA, IA, IL, IN, KY, MD, MO, NC, OK, ON, PA, TN, VA, WV	○	14	○
Porrhomma egeria Simon, 1884	Kelderkleinoogje	Araneae	Troglophile			○	○	○
Porrhomma terrestre (Emerton, 1882)	Terrestrial Wide-Eyed Sheetweaver	Araneae	Troglophile	GNR	IL	○	○	○
Potamocypris fulva (Brady, 1868)		Podocopida	Stygophile		GA	○	○	○
Potamothrix bavaricus (Oschmann, 1913)	Aquatic Oligochaete Worm	Tubificida	Stygophile		TX	○	○	○
Pratherodesmus despaini Shear, 2009		Polydesmida	Troglobiont		CA	○	1	○
Pratherodesmus ecclesia Shear, 2009		Polydesmida	Troglobiont		AZ	○	1	○
Pratherodesmus voylesi Shear, 2009		Polydesmida	Troglobiont		AZ	○	1	○
Prenolepis imparis (Say, 1836)	American Winter Ant	Hymenoptera	Accidental	G5	AL	○	○	○
Prietella phreatophila Carranza, 1954	Mexican Blindcat	Siluriformes	Stygobiont	GNR VU ESA	TX, Mexico	○	142	8
Primicimex cavernis Barber, 1941		Hemiptera	Trogloxene		TX	○	○	○
Prionochaeta opaca (Say, 1825)	Small Carrion Beetle	Coleoptera	Troglophile	G5	AL, FL, GA, IL, IN, KY, MO, NC, TN	○	○	○
Pristiloma subrupicola (Dall, 1877)	Southern Tightcoil	Stylommatophora	Trogloxene			○	○	○
Pristina leidyi Smith, 1896	Aquatic Oligochaete Worm	Tubificida	Stygophile	GNR	SC	○	○	○
Procambarus acherontis (Lonnberg, 1894)	Orlando Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	18	5
Procambarus alleni (Faxon, 1884)	Everglades Crayfish	Decapoda	Stygoxene	G4 LC	FL	○	○	○
Procambarus attiguus Hobbs & Franz, 1992	Silver Glen Springs Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	8	5
Procambarus blandingii (Harlan, 1830)	Santee Crayfish	Decapoda	Stygoxene	G4 LC		○	○	○
Procambarus clarkii (Girard, 1852)	Red Swamp Crayfish	Decapoda	Stygoxene	G5 LC	TX	○	○	○
Procambarus cuevachicae (Hobbs, 1941)		Decapoda	Stygoxene	LC		○	○	○
Procambarus delicatus Hobbs & Franz, 1986	Bigcheek Cave Crayfish	Decapoda	Stygobiont	G1 CR	FL	○	3	2
Procambarus erythrops Relyea & Sutton, 1975	Santa Fe Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	27	6
Procambarus fallax (Hagen, 1870)	Slough Crayfish	Decapoda	Stygoxene	G5 LC	FL	○	○	○
Procambarus franzi Hobbs & Lee, 1976	Orange Lake Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	13	5
Procambarus horsti Hobbs & Means, 1972	Big Blue Spring Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	10	5
Procambarus leitheuseri Franz & Hobbs, 1983	Coastal Lowland Cave Crayfish	Decapoda	Stygobiont	G1G2 EN	FL	○	12	5
Procambarus lucifugus (Hobbs, 1940)	Light-fleeing Cave Crayfish	Decapoda	Stygobiont	G1G2 LC	FL	○	89	10
Procambarus milleri Hobbs, 1971	Miami Cave Crayfish	Decapoda	Stygobiont	G1 EN ESA?	FL	○	14	6
Procambarus morrisi Hobbs & Franz, 1991	Putnum County Cave Crayfish	Decapoda	Stygobiont	G1 CR	FL	○	13	5
Procambarus orcinus Hobbs & Means, 1972	Woodville Karst Cave Crayfish	Decapoda	Stygobiont	G1 EN	FL	○	25	6
Procambarus paeninsulanus (Faxon, 1914)	Peninsula Crayfish	Decapoda	Stygoxene	G5 LC	FL	○	○	○
Procambarus pallidus (Hobbs, 1940)	Pallid Cave Crayfish	Decapoda	Stygobiont	G1G2 NT	FL, GA	○	84	5
Procambarus pilosimanus (Ortmann, 1906)		Decapoda	Stygoxene	LC		○	○	○
Procambarus spiculifer (LeConte, 1856)	White Tubercled Crayfish	Decapoda	Stygoxene	G5 LC	FL	○	○	○
Procambarus toltecae Hobbs, 1943	Toltecae Crayfish	Decapoda	Stygoxene	LC		○	○	○
Procambarus versutus (Hagen, 1870)	Sly Crayfish	Decapoda	Stygoxene	G5 LC	FL	○	○	○
Procambarus villalobosi Hobbs, 1969		Decapoda	Stygoxene	DD		○	○	○
Procaris hawaiana Holthuis, 1973		Decapoda	Stygobiont	G1 ESA	HI	○	14	4
Proceratium micrommatum (Roger, 1863)		Hymenoptera	Accidental			○	○	○
Procladius bellus (Loew, 1866)		Diptera	Trogloxene	GNR	GA	○	○	○
Procyon lotor (Linnaeus, 1758)	Common Raccoon	Carnivora	Trogloxene	G5 LC	AL, AR, FL, GA, IL, IN, KY, OK, TN, VA	○	○	○
Progomphus obscurus (Rambur, 1842)	Common Sanddragon	Odonata	Accidental	G5 LC	GA	○	○	○
Progradungula carraiensis Forster & Gray, 1979	Carrai Cave Spider	Araneae	Troglophile			○	○	○
Proisotoma frisoni Folsom, JW, 1937		Entomobryomorpha	Accidental		IA	○	○	○
Proisotoma minuta (Tullberg, 1871)	Springtail	Entomobryomorpha	Troglophile	GNR	MN	○	○	○
Proisotoma sepulcralis (Folsom, JW, 1902)		Entomobryomorpha	Trogloxene		IL	○	○	○
Proisotoma veca (Wray, 1952)		Entomobryomorpha	Trogloxene		IA	○	○	○
Proisotoma vesiculata Folsom, 1937		Entomobryomorpha	Trogloxene		IA	○	○	○
Prosimulium mixtum Syme & Davies, 1958	Mixed-Up Black Fly	Diptera	Trogloxene	G5		○	○	○
Prosimulium saltus Stone & Jamnback, 1955		Diptera	Trogloxene		GA	○	○	○
Prostoma graecense (Böhmig, 1892)		Monostilifera	Stygoxene		GA	○	○	○
Proteocephalus poulsoni Whitaker & Zober, 1978		Proteocephalidea	Stygobiont		KY	○	○	○
Protolimnesia ventriplacophora Smith & Cook, 1996		Trombidiformes	Stygobiont		TX	○	○	○
Psephenus herricki (DeKay, 1844)	Herrick's Water Penny Beetle	Coleoptera	Stygoxene	G5	KY	○	○	○
Pseudachorutes aureofasciatus (Mac Gillivray, 1893)		Poduromorpha	Trogloxene	GNR	IA, IL	○	○	○
Pseudachorutes saxatilis Macnamara, 1920		Poduromorpha	Trogloxene	GNR	IL	○	○	○
Pseudachorutes subcrassoides Mills, HB, 1934		Poduromorpha	Trogloxene		IA	○	○	○
Pseudacris crucifer (Wied-Neuwied, 1838)	Spring Peeper	Anura	Accidental	G5 LC	AL, AR, FL, GA, OK	○	○	○
Pseudacris feriarum (Baird, 1854)	Southeastern Chorus Frog	Anura	Accidental	G5 LC	AL, GA	○	○	○
Pseudacris triseriata (Wied-Neuwied, 1838)	Striped Chorus Frog	Anura	Accidental	G5 LC	IL	○	○	○
Pseudanophthalmus abditus Krekeler, 1973	Concealed Cave Beetle	Coleoptera	Troglobiont	G3	KY	○	○	○
Pseudanophthalmus acherontis Barr, 1959	Echo Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus alabamae Valentine, 1932	Alabama Cave Beetle	Coleoptera	Troglobiont	G2	AL	○	8	○
Pseudanophthalmus alladini Valentine, 1945	Alladin's Cave Beetle	Coleoptera	Troglobiont	G3G4	AL	○	○	○
Pseudanophthalmus assimilis Barr, 1981	West Wills Valley Cave Beetle	Coleoptera	Troglobiont	G1G2	AL	○	○	○
Pseudanophthalmus audax (Horn, 1883)	Bold Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	1	○
Pseudanophthalmus avernus (Valentine, 1945)	Avernus Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus barberi Jeannel, 1931		Coleoptera	Troglobiont	G2G3	KY	○	2	3
Pseudanophthalmus barri Krekeler, 1973		Coleoptera	Troglobiont	G1G2	IN	○	2	○
Pseudanophthalmus beakleyi Valentine, 1937	Beakley's Cave Beetle	Coleoptera	Troglobiont	G3G4	KY, TN	○	○	○
Pseudanophthalmus bendermani Barr, 1959	Benderman's Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus caecus Krekeler, 1973	Clifton Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus calcareus Barr, 1981	Limestone Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus catherinae Barr, 1959	Catherine's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus catoryctos Krekeler, 1973	Lesser Adams Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	3	○
Pseudanophthalmus cerberus Barr, 1985		Coleoptera	Troglobiont	G3G4	KY, TN	○	27	○
Pseudanophthalmus chthonius Krekeler, 1973		Coleoptera	Troglobiont	G3	IN, KY	○	2	○
Pseudanophthalmus ciliaris Valentine, 1937		Coleoptera	Troglobiont	G3G4	KY, TN	○	5	15
Pseudanophthalmus cnephosus Krekeler, 1973	Larue County Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	2	○
Pseudanophthalmus colemanensis Barr, 1959	Coleman Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	7
Pseudanophthalmus conditus Krekeler, 1973	Hidden Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	2	○
Pseudanophthalmus cordicollis Barr, 1981	Little Kennedy Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus cumberlandus Valentine, 1937		Coleoptera	Troglobiont	G1G2	TN	○	1	○
Pseudanophthalmus darlingtoni Barr, 1985		Coleoptera	Troglobiont	G3	KY	○	○	○
Pseudanophthalmus deceptivus Barr, 1981	Deceptive Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus delicatus Valentine, 1932	Delicate Cave Beetle	Coleoptera	Troglobiont	G3G4	VA, TN	○	○	○
Pseudanophthalmus desertus Krekeler, 1973		Coleoptera	Troglobiont	G3	KY	○	4	○
Pseudanophthalmus digitus Valentine, 1932		Coleoptera	Troglobiont	G1G2	GA, TN	○	1	○
Pseudanophthalmus distinguens Valentine, 1948		Coleoptera	Troglobiont	G1G2	AL, VA	○	○	○
Pseudanophthalmus egberti Barr, 1965	New River Valley Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	1	○
Pseudanophthalmus elongatus Krekeler, 1973		Coleoptera	Troglobiont	G1G2	KY	○	2	○
Pseudanophthalmus emersoni Krekeler, 1958		Coleoptera	Troglobiont	G1	IN	○	2	○
Pseudanophthalmus englehardti (Barber, 1928)	Englehardt's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus eremita (Horn, 1871)		Coleoptera	Troglobiont	G1G2	IN, KY, OH	○	2	○
Pseudanophthalmus exiguus Krekeler, 1973		Coleoptera	Troglobiont	G3G4	KY	○	4	○
Pseudanophthalmus exoticus Krekeler, 1973	Exotic Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	1	○
Pseudanophthalmus farrelli Barr, 1959		Coleoptera	Troglobiont	G1G2	TN	○	2	○
Pseudanophthalmus fastigatus Barr, 1981	Tapered Cave Beetle	Coleoptera	Troglobiont	G1	GA	○	○	○
Pseudanophthalmus fluviatilis Valentine, 1948		Coleoptera	Troglobiont	G3	AL	○	○	○
Pseudanophthalmus fowlerae Barr, 1980	Fowler's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus frigidus Barr, 1981	Icebox Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus fulleri Valentine, 1932		Coleoptera	Troglobiont	G2G3	GA, TN, AL	○	1	○
Pseudanophthalmus fuscus Valentine, 1931		Coleoptera	Troglobiont	G4	WV	○	5	○
Pseudanophthalmus georgiae Barr, 1981	Georgia Cave Beetle	Coleoptera	Troglobiont	G1G2	GA	○	○	○
Pseudanophthalmus globiceps Barr, 1985		Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus gracilis Valentine, 1931	Clover Hollow Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	1	○
Pseudanophthalmus grandis Valentine, 1931		Coleoptera	Troglobiont	G4	WV	○	9	○
Pseudanophthalmus hadenoecus Barr, 1965	Timber Ridge Cave Beetle	Coleoptera	Troglobiont	G1	WV	○	1	○
Pseudanophthalmus henroti Jeannel, 1949		Coleoptera	Troglobiont	GNR	WV	○	○	○
Pseudanophthalmus hesperus Barr, 1959		Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus higginbothami Valentine, 1931		Coleoptera	Troglobiont	G2	WV	○	2	○
Pseudanophthalmus hirsutus Valentine, 1931	Cumberland Gap Cave Beetle	Coleoptera	Troglobiont	G1G2	TN, VA	○	3	○
Pseudanophthalmus hoffmani Barr, 1965	Hoffman's Cave Beetle	Coleoptera	Troglobiont	G2G3	VA	○	1	○
Pseudanophthalmus holsingeri Barr, 1965	Holsinger's Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	1	○
Pseudanophthalmus horni (Garman, 1892)	Garman's Cave Beetle	Coleoptera	Troglobiont	G3	KY	○	8	○
Pseudanophthalmus hortulanus Barr, 1965	Garden Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	1	○
Pseudanophthalmus hubbardi Barber, 1928	Hubbard's Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	5	○
Pseudanophthalmus hubrichti Valentine, 1948	Hubricht's Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus humeralis Valentine, 1931		Coleoptera	Troglobiont	G2	TN	○	2	○
Pseudanophthalmus hypertrichosis Valentine, 1932		Coleoptera	Troglobiont	G3	WV	○	2	○
Pseudanophthalmus hypolithos Barr, 1981		Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus illinoisensis Barr & Peck, 1966	Illinois Cave Beetle	Coleoptera	Troglobiont	G1	IL	○	1	○
Pseudanophthalmus inexpectatus Barr, 1959	Surprising Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	5	○
Pseudanophthalmus inquisitor Barr, 1980	Inquirer Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus insularis Barr, 1959	Baker Station Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus intermedius (Valentine, 1931)	Intermediate Cave Beetle	Coleoptera	Troglobiont	G2	TN	○	2	○
Pseudanophthalmus intersectus Barr, 1965	Crossroads Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	○	○
Pseudanophthalmus jonesi Valentine, 1945	Grassy Cove Cave Beetle	Coleoptera	Troglobiont	G1G2	TN, AL	○	3	○
Pseudanophthalmus krameri Krekeler, 1973	Kramer's Cave Beetle	Coleoptera	Troglobiont	G1	OH	○	2	○
Pseudanophthalmus krekeleri Barr, 1965	Rich Mountain Cave Beetle	Coleoptera	Troglobiont	GX	WV	○	1	○
Pseudanophthalmus lallemanti Jeannel, 1949		Coleoptera	Troglobiont	G1	WV	○	○	○
Pseudanophthalmus leonae Barr, 1960		Coleoptera	Troglobiont	G1	IN	○	○	○
Pseudanophthalmus limicola Jeannel, 1931	Maddens Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	1	○
Pseudanophthalmus lodingi Valentine, 1931		Coleoptera	Troglobiont	G1G2	AL	○	6	○
Pseudanophthalmus loganensis Barr, 1959		Coleoptera	Troglobiont	G2G3	KY, TN	○	○	10
Pseudanophthalmus longiceps Barr, 1981	Long-headed Cave Beetle	Coleoptera	Troglobiont	G1G2	TN, VA	○	○	○
Pseudanophthalmus macradyi Valentine, 1948	Macrady's Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	1	○
Pseudanophthalmus major Krekeler, 1973	Beaver Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus menetriesi (Motschulsky, 1862)		Coleoptera	Troglobiont	G3	KY	○	○	○
Pseudanophthalmus meridionalis Valentine, 1945		Coleoptera	Troglobiont	G2	AL	○	○	○
Pseudanophthalmus montanus Barr, 1965	Dry Fork Valley Cave Beetle	Coleoptera	Troglobiont	G1	WV	○	1	○
Pseudanophthalmus nelsoni Barr, 1965	Nelson's Cave Beetle	Coleoptera	Troglobiont	G2	VA	○	1	○
Pseudanophthalmus nickajackensis Barr, 1981	Nickajack Cave Beetle	Coleoptera	Troglobiont	G1	AL, TN	○	○	○
Pseudanophthalmus nortoni Barr, 1981	Norton's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus occidentalis Barr, 1959	Western Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus ohioensis Krekeler, 1973	Ohio Cave Beetle	Coleoptera	Troglobiont	G1	OH	○	2	○
Pseudanophthalmus orientalis Krekeler, 1973	Surprising Cave Beetle	Coleoptera	Troglobiont	G2G3	KY	○	○	○
Pseudanophthalmus orthosulcatus Valentine, 1932		Coleoptera	Troglobiont	G1	WV	○	1	○
Pseudanophthalmus packardi Barr, 1959	Packard's Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	○	○
Pseudanophthalmus pallidus Barr, 1981	Pale Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus paradoxus Barr, 1981	Ridetop Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus parvicollis Jeannel, 1931	Hupps Hill Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus parvus Krekeler, 1973	Tatum Cave Beetle	Coleoptera	Troglobiont	GH	KY	○	2	○
Pseudanophthalmus paulus Barr, 1981	Nobletts Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus paynei Barr, 1981	Payne's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus petrunkevitchi Valentine, 1945	Petrunkevitch's Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	1	○
Pseudanophthalmus pholeter Krekeler, 1973	Greater Adams Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	2	○
Pseudanophthalmus pilosus Barr, 1985		Coleoptera	Troglobiont	G2G3	KY	○	○	○
Pseudanophthalmus pontis Barr, 1965	Natural Bridge Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	1	○
Pseudanophthalmus potamaca Valentine, 1932	South Branch Valley Cave Beetle	Coleoptera	Troglobiont	G3G4	VA, WV	○	○	○
Pseudanophthalmus praetermissus Barr, 1981	Overlooked Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus princeps Barr, 1979		Coleoptera	Troglobiont	G1G2	KY, TN	○	3	4
Pseudanophthalmus productus Barr, 1980		Coleoptera	Troglobiont	G3G4	TN	○	○	○
Pseudanophthalmus profundus Valentine, 1945		Coleoptera	Troglobiont	G2	AL	○	○	○
Pseudanophthalmus pubescens (Horn, 1868)		Coleoptera	Troglobiont	G3	KY	○	24	6
Pseudanophthalmus punctatus Valentine, 1931	Spotted Cave Beetle	Coleoptera	Troglobiont	G2	VA	○	○	○
Pseudanophthalmus pusillus Barr, 1981	Tiny Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus pusio (Horn, 1868)	Ellet Valley Cave Beetle	Coleoptera	Troglobiont	G2G3	VA	○	5	○
Pseudanophthalmus puteanus Krekeler, 1973	Old Well Cave Beetle	Coleoptera	Troglobiont	G1G2	KY	○	1	○
Pseudanophthalmus quadratus Barr, 1965	Straley's Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	1	○
Pseudanophthalmus rittmani Krekeler, 1973		Coleoptera	Troglobiont	G1G2	KY	○	2	○
Pseudanophthalmus robustus Valentine, 1931	Robust Cave Beetle	Coleoptera	Troglobiont	G3G4	TN	○	7	4
Pseudanophthalmus rogersae Barr, 1981	Roger's Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus rotundatus Valentine, 1932	Rotund Cave Beetle	Coleoptera	Troglobiont	G2	TN, VA	○	○	○
Pseudanophthalmus sanctipauli Barr, 1981	Saint Paul Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	○	○
Pseudanophthalmus scholasticus Barr, 1981	Schoolhouse Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus scutilis Barr, 1981		Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus seclusus Barr, 1981	Rye Cove Cave Beetle	Coleoptera	Troglobiont	G2G3	VA	○	○	○
Pseudanophthalmus senecae Valentine, 1932	Seneca Cave Beetle	Coleoptera	Troglobiont	G1	WV	○	1	○
Pseudanophthalmus sequoyah Barr, 1981	Sequoyah Cave Beetle	Coleoptera	Troglobiont	G1	AL	○	○	○
Pseudanophthalmus sericus Barr, 1981	Silken Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus shilohensis Krekeler, 1958	Shiloh Cave Beetle	Coleoptera	Troglobiont	G2	IN	○	2	○
Pseudanophthalmus sidus Barr, 1965	Meredith Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus simplex Barr, 1980	Simple Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus simulans Barr, 1985	Cub Run Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	○	○
Pseudanophthalmus solivagus Krekeler, 1973		Coleoptera	Troglobiont	G1G2	KY	○	2	○
Pseudanophthalmus steevesi Barr, 1981	Steeves' Cave Beetle	Coleoptera	Troglobiont	G1G2	AL	○	○	○
Pseudanophthalmus striatus (Motschulsky, 1862)		Coleoptera	Troglobiont	G2G3	KY	○	5	○
Pseudanophthalmus stricticollis Jeannel, 1931	Marengo Cave Beetle	Coleoptera	Troglobiont	G4	IN, IL	○	5	○
Pseudanophthalmus sylvaticus Barr, 1967		Coleoptera	Troglophile	GNR	WV	○	○	○
Pseudanophthalmus templetoni Valentine, 1948	Templeton's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus tenebrosus Krekeler, 1973	Stevens Creek Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	2	○
Pseudanophthalmus tennesseensis Valentine, 1937		Coleoptera	Troglobiont	G3	TN	○	1	○
Pseudanophthalmus tenuis (Horn, 1871)		Coleoptera	Troglobiont	G4	IN	○	12	○
Pseudanophthalmus thomasi Barr, 1981	Thomas' Cave Beetle	Coleoptera	Troglobiont	G1G2	VA	○	○	○
Pseudanophthalmus tiresias Barr, 1959	Indian Grave Point Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	1	○
Pseudanophthalmus transfluvialis Barr, 1985		Coleoptera	Troglobiont	G1G2	KY	○	○	○
Pseudanophthalmus troglodytes Krekeler, 1973	Louisville Cave Beetle	Coleoptera	Troglobiont	G1	KY	○	2	○
Pseudanophthalmus tullahoma Barr, 1959	Duck River Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus umbratilis Krekeler, 1973		Coleoptera	Troglobiont	G2G3	KY	○	2	○
Pseudanophthalmus unionis Barr, 1981	Union County Cave Beetle	Coleoptera	Troglobiont	G1G2	TN	○	○	○
Pseudanophthalmus valentinei Jeannel, 1949	Valentine's Cave Beetle	Coleoptera	Troglobiont	G3G4	TN	○	○	○
Pseudanophthalmus vanburenensis Barr, 1962		Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus ventus Barr, 1981	Blowing Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	○
Pseudanophthalmus vicarius Barr, 1965	Vicariant Cave Beetle	Coleoptera	Troglobiont	G2G3	VA	○	1	○
Pseudanophthalmus virginicus (Barr, 1960)	Maiden Spring Cave Beetle	Coleoptera	Troglobiont	G1	VA	○	○	○
Pseudanophthalmus wallacei Barr, 1981	Wallace's Cave Beetle	Coleoptera	Troglobiont	G1	TN	○	○	2
Pseudanophthalmus youngi Krekeler, 1958	Young's Cave Beetle	Coleoptera	Troglobiont	G3G4	IN	○	3	○
Pseudemys peninsularis Carr, 1938	Peninsular Cooter	Testudines	Accidental	G5 LC	FL	○	○	○
Pseudobaicalasellus bowmani (Lewis, 1980)	Natural Bridge Cave Isopod	Isopoda	Stygobiont	G1	VA	○	○	○
Pseudobaicalasellus henroti (Bresson, 1955)	Henrot's Cave Isopod	Isopoda	Stygobiont	G2	VA	○	○	○
Pseudobaicalasellus holsingeri (Steeves, 1963)	Holsinger's Cave Isopod	Isopoda	Stygobiont	G5	MD, VA, WV	○	○	○
Pseudobaicalasellus incurvus (Steeves & Holsinger, 1968)	Incurved Cave Isopod	Isopoda	Stygobiont	G2G4	TN, VA	○	○	○
Pseudobaicalasellus magniezi Lewis & Lewis, 2023		Isopoda	Stygobiont		VA	○	○	○
Pseudobaicalasellus mausi (Lewis, 2009)		Isopoda	Stygobiont	G2	MD, VA	○	○	○
Pseudobaicalasellus vandeli (Bresson, 1955)	Vandel's Cave Isopod	Isopoda	Stygobiont	G3G4	MD, VA	○	○	○
Pseudocandona albicans (Brady, 1864)		Podocopida	Stygophile	GNR	TX	○	○	○
Pseudocandona jeanneli (Klie, 1931)	Jeannel's Cave Ostracod	Podocopida	Stygobiont	G3	IN, KY, TN	○	3	○
Pseudocandona marengoensis (Klie, 1931)	Marengo Cave Ostracod	Podocopida	Stygobiont	G1G2	IN	○	○	○
Pseudodifflugia gracilis Schlumb.		Gromiida	Stygoxene		AL	○	○	○
Pseudogarypus hypogeus Muchmore, 1981		Pseudoscorpiones	Troglobiont	G1G2	AZ	○	○	○
Pseudogarypus orpheus Muchmore, 1981	Music Hall Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	CA	○	○	○
Pseudogarypus speleus Benedict & Malcolm, 1978		Pseudoscorpiones	Troglobiont	G1G2	CA	○	○	○
Pseudoleria parvitarsus Garrett, 1925		Diptera	Troglophile	GNR	NM	○	○	○
Pseudopolydesmus erasus (Loomis, 1943)		Polydesmida	Trogloxene		TN	○	○	○
Pseudopolydesmus pinetorum (Bollman, 1888)		Polydesmida	Trogloxene	GNR	AL, AR, GA, IL	○	○	○
Pseudopolydesmus serratus (Say, 1821)	Common Pink Flat-Back	Polydesmida	Trogloxene	G5	AL, IN, PA, TN	○	○	○
Pseudosinella aera Christiansen & Bellinger, 1980		Entomobryomorpha	Troglophile	G4	IL, TN	○	○	○
Pseudosinella alba (Packard, AS, 1873)		Entomobryomorpha	Troglophile	GNR	MN, TN	○	○	○
Pseudosinella argentea (Loksa, 1960)		Entomobryomorpha	Troglophile	GNR	AL, AR, IL, KY, MO, TN	○	○	○
Pseudosinella bona Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G2	VA	○	1	○
Pseudosinella boneti Bagnall, 1941		Entomobryomorpha	Troglophile		KY, TN	○	○	○
Pseudosinella certa Christiansen & Bellinger, 1980	Gandy Creek Cave Springtail	Entomobryomorpha	Troglobiont	G1	WV	○	1	○
Pseudosinella christianseni Salmon, 1965	Christiansen's Cave Springtail	Entomobryomorpha	Troglobiont	G5	AL, GA, KY, TN, VA	○	○	○
Pseudosinella collina Wray, 1952		Entomobryomorpha	Troglophile	GNR	AL, TN	○	○	○
Pseudosinella dubia Christiansen, 1961		Entomobryomorpha	Troglobiont	G3	AR, OK, Mexico	○	10	○
Pseudosinella duodecimpunctata Denis, J-R, 1931		Entomobryomorpha	Troglophile		KY, MO, TN, VA	○	○	○
Pseudosinella erehwon Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G2	VA	○	2	○
Pseudosinella espana Christiansen, 1961	Espana Cave Springtail	Entomobryomorpha	Troglobiont	G3	MO, Mexico, TN	○	1	○
Pseudosinella espanita Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G1	KY, TN	○	2	○
Pseudosinella extra Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G1G2	VA	○	1	○
Pseudosinella flatua Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G1G2	NC, VA	○	2	○
Pseudosinella folsomi (Mills, HB, 1931)		Entomobryomorpha	Troglophile	GNR	AL, MO	○	○	○
Pseudosinella fonsa Christiansen & Bellinger, 1996	Fountain Cave Springtail	Entomobryomorpha	Troglobiont	G3G4	IN, OH, TN	○	1	○
Pseudosinella georgia Christiansen, K & Bellinger, P, 1998		Entomobryomorpha	Troglophile		GA	○	○	○
Pseudosinella gisini Charistiansen, 1960		Entomobryomorpha	Troglobiont	G3G4	NC, VA, WV, Mexico, TN	○	15	○
Pseudosinella gisini carolina Christiansen, K & Bellinger, P, 1996		Entomobryomorpha	Troglophile		NC	○	○	○
Pseudosinella gisini virginia Christiansen, K & Bellinger, P, 1996		Entomobryomorpha	Troglophile		VA	○	○	○
Pseudosinella granda Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G3	VA	○	1	○
Pseudosinella hirsuta (Delamare Deboutteville, 1949)	Hirsute Cave Springtail	Entomobryomorpha	Troglobiont	G5	AL, GA, KY, TN, VA, Mexico	○	8	○
Pseudosinella josemarii Soto-Adames 2010		Entomobryomorpha	Troglobiont	GNR	WV	○	○	○
Pseudosinella meganporteri Soto-Adames 2010		Entomobryomorpha	Troglobiont	G2	WV	○	○	○
Pseudosinella nata Christiansen & Bellinger, 1980		Entomobryomorpha	Troglobiont	G1	AL, Mexico, TN	○	2	○
Pseudosinella ops Christiansen & Bellinger, 1998		Entomobryomorpha	Troglobiont		VA	○	1	○
Pseudosinella orba Christiansen, 1960		Entomobryomorpha	Troglobiont	G3G4	KY, NC, TN, VA, WV, Mexico	○	65	○
Pseudosinella pecki Christiansen & Bellinger, 1980	Peck's Cave Springtail	Entomobryomorpha	Troglobiont	G2G3	GA, NC, TN, AL, FL	○	1	○
Pseudosinella rolfsi Mills, HB, 1932		Entomobryomorpha	Troglophile	GNR	AL	○	○	○
Pseudosinella sexoculata Schött, 1902		Entomobryomorpha	Troglophile		KY, NM	○	○	○
Pseudosinella spinosa (Delamare Deboutteville, 1949)	Spiny Cave Springtail	Entomobryomorpha	Troglobiont	G5	AL, GA, TN, Mexico	○	5	○
Pseudosinella testa Christiansen & Bellinger, 1980	Shelled Cave Springtail	Entomobryomorpha	Troglobiont	G2G3	AR, VA, WV, Mexico	○	4	○
Pseudosinella vespera Christiansen & Bellinger, 1996		Entomobryomorpha	Troglobiont	G2	NC, VA	○	1	○
Pseudosinella violenta (Folsom, JW, 1924)		Entomobryomorpha	Troglophile	GNR	AL, IA, TX, WI	○	○	○
Pseudosinella vita Christiansen & Bonet, 1980		Entomobryomorpha	Troglobiont	G1G2	NM, Mexico	○	14	○
Pseudotremia acheron Shear, 1972		Chordeumatida	Troglobiont	G1G2	TN	○	2	○
Pseudotremia aeacus Shear, 1972		Chordeumatida	Troglobiont	G1G2	GA	○	3	○
Pseudotremia amphiorax Shear, 1972		Chordeumatida	Troglobiont	G1G2	KY	○	2	○
Pseudotremia armesi Shear, 1972		Chordeumatida	Troglophile	G2	WV	○	○	○
Pseudotremia barri Lewis, 2005	Barr's Cave Millipede	Chordeumatida	Troglobiont	G2	TN	○	○	9
Pseudotremia blacki Lewis, 2000	Black's Cave Milliped	Chordeumatida	Troglobiont	G1	IN	○	○	○
Pseudotremia burnsorum Lewis, 2000	Burn's Cave Milliped	Chordeumatida	Troglobiont	G1G2	IN	○	○	○
Pseudotremia callae Lewis, 2009	Call's Cave Milliped	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia carterensis (Packard, 1883)		Chordeumatida	Troglobiont	G2G3	KY, IN	○	2	○
Pseudotremia cavernarum Cope, 1869	Ellett Valley Pseudotremia Millipede	Chordeumatida	Troglobiont	G2G3	VA, IN, KY, TN	○	8	○
Pseudotremia cerberus Shear, 2011	Cerberus Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia cercops Shear, 1972		Chordeumatida	Troglobiont	G1	TN	○	3	○
Pseudotremia cocytus Shear, 1972		Chordeumatida	Troglophile		TN	○	○	○
Pseudotremia conservata Hoffman & Lewis, 1997	TNC Cave Milliped	Chordeumatida	Troglobiont	G1G2	IN	○	○	○
Pseudotremia contorta Shear, 2011	Twisted-gonopod Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia cookorum Lewis, 2000	Cook's Cave Milliped	Chordeumatida	Troglobiont	G1G2	IN	○	○	○
Pseudotremia culveri Shear, 2011	Culver's Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia deprehendor Shear, 1972		Chordeumatida	Troglobiont	G1	TN, VA	○	2	○
Pseudotremia douglasi Lewis, 2009	Douglas' Cave Milliped	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia eburnea Loomis, 1939		Chordeumatida	Troglobiont	G2G4	AL, GA, TN, VA	○	3	○
Pseudotremia fergusoni Shear, 2011	Ferguson's Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia fongi Shear, 2008		Chordeumatida	Troglobiont	GNR	WV	○	○	○
Pseudotremia fracta Chamberlin, 1951		Chordeumatida	Troglophile		GA, TN	○	○	○
Pseudotremia fulgida Loomis, 1943	Greenbrier Valley Cave Millipede	Chordeumatida	Troglobiont	G3	WV	○	2	○
Pseudotremia garlandae Lewis, 2005	Garland's Cave Millipede	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia handi Shear, 2008		Chordeumatida	Troglobiont	GNR	WV	○	○	○
Pseudotremia hobbsi Hoffman, 1950		Chordeumatida	Troglophile	G4	VA, WV	○	○	○
Pseudotremia hoffmani Lewis, 2009	Hoffman's Cave Millipede	Chordeumatida	Troglobiont	GNR	TN	○	○	○
Pseudotremia hollidayi Lewis, 2005	Holliday's Cave Milliped	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia hubbardi Shear, 2011	Hubbard's Cave Milliped	Chordeumatida	Troglobiont	G1G2	VA	○	○	○
Pseudotremia indianae Hoffman, 1958	Blue River Cave Millipede	Chordeumatida	Troglobiont	G4	IN	○	5	○
Pseudotremia inexpectata Shear, 2011	Devault's Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia jaculohamatum Shear, 2011	Harpoon Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia johnholsingeri Shear, 2011	Holsinger's Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia kerboi Shear, 2008		Chordeumatida	Troglobiont	GNR	WV	○	○	○
Pseudotremia laudermilki Lewis, 2009	Laudermilk's Cave Millipede	Chordeumatida	Troglobiont	GNR	KY	○	○	○
Pseudotremia lethe Shear, 1972		Chordeumatida	Troglobiont	G1	TN	○	1	○
Pseudotremia lictor Shear, 1972		Chordeumatida	Troglobiont	G1	TN	○	2	○
Pseudotremia loomisi Shear, 2011	Loomis's Rough-backed Millipede	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia lusciosa (Loomis, 1939)	Germany Valley Cave Millipede	Chordeumatida	Troglobiont	G1	WV	○	2	○
Pseudotremia manni Lewis, 2005	Mann's Cave Millipede	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia merops Shear, 1972		Chordeumatida	Troglobiont	G1	KY	○	2	○
Pseudotremia minos Shear, 1972		Chordeumatida	Troglobiont	G1	AL, TN	○	2	10
Pseudotremia momus Shear, 1972		Chordeumatida	Troglophile	G2	VA	○	○	○
Pseudotremia nefanda Shear, 1972	Clark Cave Millipede	Chordeumatida	Troglobiont	G3G4	IN	○	2	○
Pseudotremia nodosa Loomis, 1939		Chordeumatida	Troglobiont	G4	TN, VA	○	2	○
Pseudotremia nyx Shear, 1972		Chordeumatida	Troglobiont	G1	AL	○	3	○
Pseudotremia orndorffi Shear, 2011	Orndorff's Cave Milliped	Chordeumatida	Troglobiont	G2	VA	○	○	○
Pseudotremia peponocranium Shear, 2011	Pumpkin-headed Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia piscator Shear, 2011	Fisher Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia princeps Loomis, 1939	South Branch Valley Cave Millipede	Chordeumatida	Troglophile	G1	WV	○	○	○
Pseudotremia purselli Lewis, 2000	Pursell's Cave Milliped	Chordeumatida	Troglobiont	G1	IN	○	○	○
Pseudotremia reynoldsae Lewis, 2003	Reynolds Cave Millipede	Chordeumatida	Troglobiont	G1	IN	○	○	○
Pseudotremia rhadamanthus Shear, 1972		Chordeumatida	Troglobiont	G1G2	AL, TN	○	2	○
Pseudotremia roebuckorum Lewis, 2005	Roebuck's Cave Millipede	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia ryensis Shear, 2011	Rye Cove Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia salifodina Shear, 2011	Jones' Saltpetre Cave Milliped	Chordeumatida	Troglobiont	G1	VA	○	○	○
Pseudotremia salisae Lewis, 2000	Salisa's Cave Milliped	Chordeumatida	Troglobiont	G2	IN, OH	○	3	○
Pseudotremia schneiderae Shear, 2008		Chordeumatida	Troglobiont	GNR	WV	○	○	○
Pseudotremia sheari Lewis, 2009	Shear's Cave Millipede	Chordeumatida	Troglobiont	GNR	TN	○	○	○
Pseudotremia shelleyi Lewis, 2009	Shelley's Cave Millipede	Chordeumatida	Troglobiont	GNR	NC	○	3	○
Pseudotremia spira Shear, 1972		Chordeumatida	Troglobiont	G1	KY	○	2	○
Pseudotremia styx Lewis, 2009		Chordeumatida	Troglobiont	GNR	KY	○	○	○
Pseudotremia tuberculata Loomis, 1939		Chordeumatida	Troglobiont	G3	VA	○	1	○
Pseudotremia unca Shear, 1972		Chordeumatida	Troglobiont	G1	KY	○	2	○
Pseudotremia valga Loomis, 1943		Chordeumatida	Troglobiont	G1G2	TN, VA	○	2	○
Pseudotremia wallaceae Lewis, 2005	Wallace's Cave Millipede	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotremia withersi Lewis, 2009	Withers' Cave Millipede	Chordeumatida	Troglobiont	G1	TN	○	○	○
Pseudotriton montanus Baird, 1850	Mud Salamander	Caudata	Trogloxene	G5 LC	KY	○	○	○
Pseudotriton ruber (Latreille, 1801)	Red Salamander	Caudata	Troglophile	G5 LC	AL, GA, KY, TN	○	○	○
Psilochorus cordatus (Bilimek, 1867)		Araneae	Troglophile			○	○	○
Psychoda cinerea Banks, 1894		Diptera	Troglophile	GNR	KY	○	○	○
Psychoda minuta Banks, 1894		Diptera	Troglophile	GNR	IN	○	○	○
Psychoda phalaenoides (Linnaeus, 1758)		Diptera	Troglophile	GNR		○	○	○
Psychoda pusilla Tonnoir, 1922		Diptera	Troglophile		GA	○	○	○
Psychoda reevesi Quate, 2000		Diptera	Troglophile		GA, TN	○	○	○
Psychoda satchelli Quate, 1955		Diptera	Troglophile	GNR		○	○	○
Psychoda umbracola Quate, 1955		Diptera	Troglophile		IL, TN	○	○	○
Psychopomporus felipi Jean et al., 2012		Coleoptera	Stygobiont	GNR	TX	○	3	3
Psyllipsocus ramburii Selys-Longchamps, 1872	Cave Barklouse	Psocodea	Troglophile	GNR	AL, GA, IA, KY, NM, OK, TN	○	○	○
Ptenothrix atra (Linnæus, C, 1758)		Symphypleona	Trogloxene	GNR	IL, TN	○	○	○
Ptenothrix marmorata (Packard, AS, 1873)		Symphypleona	Trogloxene	GNR	TN	○	○	○
Ptenothrix quadrangularis (Mills, HB, 1934)		Symphypleona	Trogloxene		TN	○	○	○
Pteronotropis harperi Fowler, 1941	Redeye Chub	Cypriniformes	Stygoxene		FL	○	○	○
Pteronotus rubiginosus (Wagner, 1843)	Wagner's Common Mustached Bat	Chiroptera	Trogloxene	LC		○	○	○
Pterostichus coracinus (Newman, 1838)		Coleoptera	Trogloxene	G5	AL, IL	○	○	○
Pterostichus lachrymosus (Newman, 1838)		Coleoptera	Trogloxene	G5		○	○	○
Pterostichus relictus (Newman, 1838)		Coleoptera	Trogloxene	GNR	AL, GA	○	○	○
Pterygoplichthys disjunctivus (Weber, 1991)	Vermiculated Sailfin Catfish	Siluriformes	Stygoxene	GNR LC	FL	○	○	○
Ptomaphagus appalachianus (Peck, 1979)		Coleoptera	Troglophile		AL, GA	○	○	○
Ptomaphagus barri Peck, 1973		Coleoptera	Troglobiont	G2G3	TN	○	5	12
Ptomaphagus bedfordensis (Peck, 1979)		Coleoptera	Troglophile		TN	○	○	○
Ptomaphagus californicus (LeConte, J. L., 1853)		Coleoptera	Trogloxene	GNR	CA	○	○	○
Ptomaphagus cavernicola Schwarz, 1898		Coleoptera	Troglophile	G4	AL, AR, FL, GA, IA, IL, MO, OK, TX	○	○	○
Ptomaphagus chromolithus Peck, 1984		Coleoptera	Troglobiont	G2G3	AL, TN	○	○	6
Ptomaphagus cocytus Peck, 1973		Coleoptera	Troglobiont	G1G2	AZ	○	2	○
Ptomaphagus consobrinus (LeConte, J. L., 1853)		Coleoptera	Trogloxene	GNR	AL	○	○	○
Ptomaphagus cumberlandus (Peck, 1979)		Coleoptera	Troglophile		AL	○	○	○
Ptomaphagus elabra Peck, 1971		Coleoptera	Troglophile			○	○	○
Ptomaphagus episcopus Peck, 1973		Coleoptera	Troglobiont	G1G2	AL	○	2	3
Ptomaphagus fecundus Barr, 1963		Coleoptera	Troglobiont	G1	TN	○	○	3
Ptomaphagus fiskei Peck, 1973		Coleoptera	Troglobiont	G1G2	GA	○	5	○
Ptomaphagus fumosus (Peck, 1979)		Coleoptera	Troglophile		GA	○	○	○
Ptomaphagus giaquintoi Jeannel, 1936		Coleoptera	Troglophile			○	○	○
Ptomaphagus gypsum Peck, 1973		Coleoptera	Troglophile			○	○	○
Ptomaphagus hatchi Jeannel, 1933	Hatch's Cave Fungus Beetle	Coleoptera	Troglobiont	G3	AL, TN	○	4	○
Ptomaphagus hazelae Peck, 1973		Coleoptera	Troglobiont	G1G2	AL	○	2	○
Ptomaphagus hirtus (Tellkampf, 1844)	Kentucky Cave Beetle	Coleoptera	Troglobiont	G4	KY	○	14	○
Ptomaphagus hubrichti Barr, 1958		Coleoptera	Troglobiont	G2G3	TN	○	4	○
Ptomaphagus inyoensis Peck & Gnaspini, 1997		Coleoptera	Troglobiont		CA	○	○	○
Ptomaphagus julius Peck, 1973		Coleoptera	Troglobiont	G1G2	AL	○	2	6
Ptomaphagus laticornis Jeannel, 1949		Coleoptera	Troglobiont	G1G2	AL	○	○	6
Ptomaphagus leo Peck, 1973		Coleoptera	Troglophile			○	○	○
Ptomaphagus loedingi (Hatch, 1933)		Coleoptera	Troglobiont	G1G2	AL	○	5	○
Ptomaphagus longicornis Jeannel, 1949		Coleoptera	Troglobiont	G3G4	AL	○	○	9
Ptomaphagus nashvillensis (Peck, 1979)		Coleoptera	Troglophile		TN	○	○	○
Ptomaphagus neojonesi Peck & Newton, 2017		Coleoptera	Troglophile		AL	○	○	○
Ptomaphagus parashant Peck & Wynne, 2013		Coleoptera	Troglobiont		AZ	○	2	○
Ptomaphagus shapardi Sanderson, 1939		Coleoptera	Troglophile		AR, OK	○	○	○
Ptomaphagus solanum Peck, 1973		Coleoptera	Troglobiont	G1	AL	○	2	3
Ptomaphagus spelaeus (Bilimek, 1867)		Coleoptera	Troglophile			○	○	○
Ptomaphagus torodei Peck, 1984	Torode's Cave Fungus Beetle	Coleoptera	Troglobiont	G1G2	AL	○	○	6
Ptomaphagus ulkei Horn, 1885		Coleoptera	Troglophile		AL	○	○	○
Ptomaphagus valentinei Jeannel, 1933	Valentine's Cave Fungus Beetle	Coleoptera	Troglobiont	G3G4	AL	○	3	○
Ptomaphagus walteri Peck, 1973		Coleoptera	Troglobiont	G1G2	AL	○	2	6
Ptomaphagus whiteselli Barr, 1963		Coleoptera	Troglobiont	G2G3	AL, GA	○	5	○
Ptyoiulus impressus (Say, 1821)	Flocculent Tailed Millipede	Julida	Trogloxene	G5		○	○	○
Puliciphora suavis Borgmeier, 1963		Diptera	Accidental		AL	○	○	○
Puliciphora virginiensis Malloch, 1912		Diptera	Troglophile		GA	○	○	○
Pupoides albilabris (C. B. Adams, 1841)		Stylommatophora	Trogloxene		IL	○	○	○
Pygmarrhopalites altus (Christiansen, 1966)		Symphypleona	Troglobiont	G2G3	KY	○	2	○
Pygmarrhopalites arcus (Zeppelini & Christiansen, 2003)		Symphypleona	Troglobiont	GNR	ID	○	5	○
Pygmarrhopalites ashcraftensis Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont	G1	IN	○	2	○
Pygmarrhopalites ater (Christiansen & Bellinger, 1998)	Black Medusa Cave Springtail	Symphypleona	Troglobiont	G3	IL, IN	○	○	○
Pygmarrhopalites benitus (Folsom, JW, 1896)		Symphypleona	Troglophile	G1	TN	○	○	○
Pygmarrhopalites bimus (Christiansen, 1966)		Symphypleona	Troglobiont	G3G4	IA, IN, KY, TN	○	3	○
Pygmarrhopalites buffaloensis Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont		AR	○	2	○
Pygmarrhopalites caedus (Christiansen & Bellinger, 1996)		Symphypleona	Troglobiont	G3	VA	○	○	○
Pygmarrhopalites carolynae (Christiansen & Bellinger, 1996)	Carolyn's Cave Springtail	Symphypleona	Troglobiont	G4	IL, IN, VA, WV	○	○	○
Pygmarrhopalites clarus (Christiansen, 1966)	Clarus Cave Springtail	Symphypleona	Troglobiont	G4	AR, MO, SD, VA, WA, WI, WV	○	3	○
Pygmarrhopalites commorus (Christiansen & Bellinger, 1996)		Symphypleona	Troglobiont	G2G3	VA, WV	○	○	○
Pygmarrhopalites dubius (Christiansen, 1966)		Symphypleona	Troglobiont	G2G3	AR, IA, MN	○	3	○
Pygmarrhopalites fransjanssens Soto-Adames & Taylor, 2013		Symphypleona	Troglobiont		IL	○	○	○
Pygmarrhopalites hirtus (Christiansen, K, 1966)		Symphypleona	Troglophile	GNR	IA, IL, WI	○	○	○
Pygmarrhopalites hubbardi (Zeppelini & Christiansen, 2003)		Symphypleona	Troglobiont		CO	○	2	○
Pygmarrhopalites incantator Soto-Adames & Taylor, 2013		Symphypleona	Troglobiont		IL	○	3	○
Pygmarrhopalites jay Christiansen & Bonet, 1996		Symphypleona	Troglobiont	G2G3	OK	○	○	○
Pygmarrhopalites lacuna (Christiansen & Bellinger, 1996)		Symphypleona	Troglobiont	G1G2	VA	○	○	○
Pygmarrhopalites leonardwoodensis Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont		MO	○	2	○
Pygmarrhopalites lewisi (Christiansen & Bellinger, 1998)	Lewis' Cave Springtail	Symphypleona	Troglobiont	GNR	IL, IN	○	3	○
Pygmarrhopalites madonnensis (Zeppelini & Christiansen, 2003)	Madonna Cave Springtail	Symphypleona	Troglobiont	GNR	IL	○	3	○
Pygmarrhopalites marshalli (Christiansen & Bellinger, 1996)		Symphypleona	Troglobiont	G3	TN, VA	○	4	○
Pygmarrhopalites obtusus (Zeppelini & Christiansen, 2003)		Symphypleona	Troglobiont	G1	VA	○	7	○
Pygmarrhopalites pavo (Christiansen & Bellinger, 1998)		Symphypleona	Troglobiont	G3	MO, TN, VA, WV, IN	○	6	○
Pygmarrhopalites plethorasari Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont		MO	○	6	○
Pygmarrhopalites pygmaeus (Wankel, 1860)		Symphypleona	Troglophile	GNR	AL, AR, GA, IA, IL, KY, MO, TN, VA	○	○	○
Pygmarrhopalites sacer (Christiansen & Bellinger, 1998)		Symphypleona	Troglobiont	G2	VA, WV	○	○	○
Pygmarrhopalites salemensis Soto-Adames & Taylor, 2013		Symphypleona	Troglobiont		IL	○	○	○
Pygmarrhopalites sapo (Zeppelini & Christiansen, 2003)		Symphypleona	Troglobiont		IL	○	8	○
Pygmarrhopalites sextus (Zeppelini & Christiansen, 2003)		Symphypleona	Troglobiont	G1	VA	○	7	○
Pygmarrhopalites shoshoneiensis Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont		NV	○	4	○
Pygmarrhopalites silvus (Christiansen & Bellinger, 1996)		Symphypleona	Troglobiont	G2	VA	○	○	○
Pygmarrhopalites texensis (Christiansen & Bonet, 1996)		Symphypleona	Troglobiont	G3G4	TX	○	○	○
Pygmarrhopalites youngsteadtii Zeppelini, Taylor, & Slay, 2009		Symphypleona	Troglobiont		AR	○	○	○
Pylodictis olivaris (Rafinesque, 1818)	Flathead Catfish	Siluriformes	Stygoxene	G5 LC	FL	○	○	○
Quedius alesi Brunke, 2020		Coleoptera	Troglophile		OK	○	○	○
Quedius capucinus (Gravenhorst, 1806)		Coleoptera	Troglophile	G5	KY	○	○	○
Quedius erythrogaster Mannerheim, 1852		Coleoptera	Troglophile	G5	AL, GA, IL, TN, VA	○	○	○
Quedius fulgidus (Fabricius, 1792)	Large Rove Beetle	Coleoptera	Troglophile	GNR	AL, GA, IL, IN, KY	○	○	○
Quedius mesomelinus (Marsham, 1802)	Staph Beetle	Coleoptera	Troglophile	GNR	IA, MN	○	○	○
Quedius spelaeus Horn, 1871		Coleoptera	Troglophile	GNR	IA, IL, IN, WI	○	○	○
Remasellus parvus (Steeves, 1964)		Isopoda	Stygobiont	G1G2	FL	○	13	16
Rhadine austinica Barr, 1974		Coleoptera	Troglobiont	G1G2	TX	○	82	18
Rhadine babcocki (Barr, 1960)		Coleoptera	Troglophile		TX	○	○	○
Rhadine bullis Reddell & Cokendolpher, 2004		Coleoptera	Troglobiont	GNR	TX	○	22	○
Rhadine caudata (LeConte, 1863)		Coleoptera	Troglophile	G3	AL, GA, KY, TN	○	○	○
Rhadine exilis (Barr & Lawrence, 1960)		Coleoptera	Troglobiont	G3 ESA	TX	○	133	12
Rhadine grubbsi Reddell & Duperre, 2009		Coleoptera	Troglobiont		TX	○	7	○
Rhadine howdeni (Barr & Lawrence, 1960)		Coleoptera	Troglophile		TX	○	○	○
Rhadine infernalis (Barr & Lawrence, 1960)		Coleoptera	Troglobiont	G2G3 ESA	TX	○	152	17
Rhadine insolita Barr, 1974		Coleoptera	Troglobiont	G1G2	TX	○	5	○
Rhadine ivyi Reddell & Cokendolpher, 2004		Coleoptera	Troglobiont		TX	○	2	○
Rhadine koepkei (Barr, 1960)		Coleoptera	Troglobiont	G1	TX	○	12	○
Rhadine larvalis LeConte, 1846		Coleoptera	Troglophile	GNR	AL, FL, GA, IL	○	○	○
Rhadine longicollis Benedict, 1927		Coleoptera	Troglophile		NM, TX	○	○	○
Rhadine noctivaga Barr, 1974		Coleoptera	Troglobiont	G1G2	TX	○	94	14
Rhadine ozarkensis Sanderson & Miller, 1941		Coleoptera	Troglobiont	GH	AR	○	2	○
Rhadine persephone Barr, 1974	Tooth Cave Beetle	Coleoptera	Troglobiont	G1G2 NE ESA	TX	○	90	9
Rhadine reyesi Reddell & Cokendolpher, 2001		Coleoptera	Troglobiont	GNR	TX	○	36	○
Rhadine rubra (Barr, 1960)		Coleoptera	Troglophile		TX	○	○	○
Rhadine russelli Barr, 1974		Coleoptera	Troglobiont	G1G2	TX	○	13	3
Rhadine speca (Barr, 1960)		Coleoptera	Troglobiont	G2	TX	○	○	○
Rhadine sprousei Reddell & Cokendolpher, 2004		Coleoptera	Troglobiont		TX	○	3	○
Rhadine subterranea (Van Dyke, 1918)		Coleoptera	Troglobiont	G2	TX	○	143	15
Rhadine tenebrosa (Barr, 1960)		Coleoptera	Troglobiont	G1G2	TX	○	22	5
Rhagidia diversicolor (C. L. Koch, 1838)		Actinedida	Troglophile		WV	○	○	○
Rhagidia varia Zacharda 1985		Actinedida	Troglobiont	G5	VA, WV	○	○	○
Rhamdia quelen (Quoy & Gaimard, 1824)	Silver Catfish	Siluriformes	Stygophile	LC		○	○	○
Rhantus suturalis (W. S. MacLeay, 1825)	Cosmopolitan Diving Beetle	Coleoptera	Accidental		MO	○	○	○
Rheocyclops indiana Reid in Reid et al. 1999	Indiana Groundwater Copepod	Cyclopoida	Stygobiont	G1	IN, TN	○	2	○
Rheocyclops virginianus (Reid, 1993)		Cyclopoida	Stygobiont		VA	○	5	○
Rhinichthys obtusus Agassiz, 1854	Western Blacknose Dace	Cypriniformes	Stygoxene	G5 LC	AL	○	○	○
Rhinocricus ocraceus Brölemann, 1900		Spirobolida	Troglophile			○	○	○
Rhinotus panamanus (Loomis, 1964)		Polyzoniida	Troglophile			○	○	○
Rhyacodrilus sodalis (Eisen, 1879)	Aquatic Oligochaete Worm	Tubificida	Stygophile	GNR	WV	○	○	○
Rhyacophila nigrita Banks, 1907		Trichoptera	Stygoxene		KY	○	○	○
Rhynchomonas nasuta (Stokes) Klebs, 1892		Bodonida	Stygoxene		AL, KY	○	○	○
Robustocheles hilli (Strandtmann, 1971)		Actinedida	Troglophile		AZ, GA, IN, KY, TN, VA, WA, WV	○	○	○
Robustocheles occulta Zacharda & Pugsley, 1988		Actinedida	Troglobiont	G2G3	AB, IA, WA	○	○	○
Rotomelita ana Barnard, 1977		Amphipoda	Stygobiont	G1G2	HI	○	3	○
Rotomelita lokoa Barnard, 1977		Amphipoda	Stygobiont	G1G2	HI	○	13	○
Rudiloria trimaculata (Wood, 1864)		Polydesmida	Accidental	G5	VA	○	○	○
Rudolfina cavernicola Marshall & Fitzgerald, 1997		Diptera	Troglophile		CO	○	○	○
Rugathodes sexpunctatus (Emerton, 1882)	Common Six-Spotted Cobweaver	Araneae	Trogloxene	G5		○	○	○
Rugilus dentatus Say, 1831		Coleoptera	Accidental	GNR	MO	○	○	○
Rugosuscandona scharfi Kulkoyluoglu et al., 2017		Podocopida	Stygobiont		TX	○	○	○
Ryloviella pilosa (Chappuis, 1929)		Harpacticoida	Stygophile		IN, KY	○	○	○
Rymosia fasciata (Meigen, 1804)		Diptera	Troglophile		IN	○	○	○
Rymosia filipes Loew, 1870		Diptera	Troglophile	GNR	IN, TN	○	○	○
Rymosia triangularis Shaw, 1935		Diptera	Troglophile	GNR	AL, IL	○	○	○
Sabacon cavicolens (Packard, 1884)	North American Cavernicolous Harvestman	Opiliones	Troglophile	GNR	AL, AR, GA, IL, KY, MT, TN	○	○	○
Saetigerocreagris phyllisae (J. C. Chamberlin, 1930)		Pseudoscorpiones	Troglophile	G1	CA	○	○	○
Sagittocythere barri (Hart & Hobbs, 1961)		Podocopida	Stygobiont	G5	AL, IN, KY, TN	○	76	○
Sagittocythere stygia Hart & Hart, 1966		Podocopida	Stygobiont	G1	KY	○	1	○
Salmasellus howarthi Lewis, 2001		Isopoda	Stygobiont	GNR	OR, WA	○	4	9
Salmasellus steganothrix Bowman, 1975		Isopoda	Stygobiont	G2	AB, MT	○	15	○
Salpingoeca amphoridium James-Clark		Craspedida	Stygoxene		KY	○	○	○
Satan eurystomus Hubbs & Bailey, 1947	Widemouth Blindcat	Siluriformes	Stygobiont	G1G2 VU ESA?	TX	○	48	○
Sayornis phoebe (Latham, 1790)	Eastern Phoebe	Passeriformes	Trogloxene	G5 LC	AL, AR, FL, GA, IL, KY, OK, TN, VA	○	○	○
Scalopus aquaticus (Linnaeus, 1758)	Eastern Mole	Eulipotyphla	Accidental	G5 LC	KY	○	○	○
Scaphinotus andrewsii (T.W.Harris, 1839)	Andrew's Snail-Eating Beetle	Coleoptera	Trogloxene		KY	○	○	○
Scaphinotus unicolor (Fabricius, 1787)		Coleoptera	Trogloxene		AL	○	○	○
Scatopse notata (Linnaeus, 1758)	Black Compost Fly	Diptera	Trogloxene	GNR	IL	○	○	○
Sceloporus undulatus (Bosc & Daudin, 1801)	Eastern Fence Lizard	Squamata	Accidental	G5 LC	AR, KY	○	○	○
Schaefferia asymmetrica (Christiansen & Wang, 2006)		Poduromorpha	Troglobiont		CO	○	○	○
Schaefferia steinmanni (Christiansen & Wang, 2006)		Poduromorpha	Troglobiont		CO	○	○	○
Schaefferia unica (Christiansen & Wang, 2006)		Poduromorpha	Troglobiont		CO	○	○	○
Schizocosa ocreata (Hentz, 1844)	Brush-Legged Split Wolf Spider	Araneae	Accidental	G5	IL	○	○	○
Schizocosa saltatrix (Hentz, 1844)		Araneae	Accidental	G5		○	○	○
Schornikovdona bellensis Kulkoyluoglu et al., 2017		Podocopida	Stygobiont		TX	○	○	○
Schrankia howarthi Davis & Medeiros, 2009		Lepidoptera	Troglobiont		HI	○	3	105
Sciaphilus asperatus (Bonsdorff, 1785)	Strawberry Root Weevil	Coleoptera	Accidental	GNR		○	○	○
Scincella lateralis (Say, 1822)	Ground Skink	Squamata	Accidental	G5 LC	AL, AR	○	○	○
Sciodrepoides latinotum Peck & Cook, 2002		Coleoptera	Troglophile	GNR	MO	○	○	○
Sciodrepoides terminans (LeConte, J. L., 1850)		Coleoptera	Trogloxene	G5	GA	○	○	○
Sciurus carolinensis Gmelin, 1788	Eastern Gray Squirrel	Rodentia	Accidental	G5 LC	AL, AR, KY	○	○	○
Sclerobunus cavicolens (Banks, 1905)		Opiliones	Troglobiont	G1G2	MT	○	8	24
Sclerobunus jemez Derkarabetian & Hedin, 2014		Opiliones	Troglobiont		NV	○	○	○
Sclerobunus klomax Derkarabetian & Hedin, 2014		Opiliones	Troglobiont	GNR	NM	○	5	16
Sclerobunus madhousensis (Briggs, 1971)		Opiliones	Troglobiont	G1G2	UT	○	4	20
Sclerobunus speoventus Derkarabetian & Hedin, 2014		Opiliones	Troglobiont		CO	○	15	32
Sclerobunus steinmanni Derkarabetian & Hedin, 2014		Opiliones	Troglobiont		CO	○	3	21
Sclerobunus ungulatus (Briggs, 1971)		Opiliones	Troglobiont	G1G2	NV	○	29	21
Scoliocentra brachypterna (Loew, 1873)		Diptera	Trogloxene	GNR	GA, IA, IL, IN, KY	○	○	○
Scoliocentra fraterna Loew, 1863		Diptera	Trogloxene	GNR	IN	○	○	○
Scoliocentra tincta (Walker, 1849)		Diptera	Troglophile		IN	○	○	○
Scoliopteryx libatrix (Linnaeus, 1758)	Herald Moth	Lepidoptera	Trogloxene	G5	AL, GA, IA, IL, IN, KY, OK, TN	○	○	○
Scolopocryptops sexspinosus Say (1821)	Eastern Fire Centipede	Scolopendromorpha	Trogloxene	GNR	AL, GA, MO, TN	○	○	○
Scoterpes alabama Shear, 2010	Alabama Cave Millipede	Chordeumatida	Troglobiont		AL	○	○	○
Scoterpes austrinus Loomis, 1943		Chordeumatida	Troglobiont	G3G4	AL, GA	○	3	○
Scoterpes blountensis Shear, 2010		Chordeumatida	Troglobiont		TN	○	○	○
Scoterpes copei (Packard, 1871)		Chordeumatida	Troglobiont	G3G4	KY, TN, GA	○	6	○
Scoterpes hesperus Shear, 2010		Chordeumatida	Troglobiont		TN	○	○	○
Scoterpes jackdanieli Shear, 2010		Chordeumatida	Troglobiont		TN	○	○	○
Scoterpes musicarustica Shear, 2010		Chordeumatida	Troglobiont		TN	○	○	○
Scoterpes nudus Chamberlin, 1943		Chordeumatida	Troglobiont		GA	○	○	○
Scoterpes sollmani Lewis, 2000	Sollman's Cave Millipede	Chordeumatida	Troglobiont	G1	IN	○	○	○
Scoterpes stewartpecki Shear, 2010	Peck's Cave Millipede	Chordeumatida	Troglobiont		AL, TN	○	○	○
Scoterpes syntheticus (Shear, 1972)		Chordeumatida	Troglobiont		AL	○	○	○
Scoterpes tombarri Shear, 2010	Barr's Cave Millipede	Chordeumatida	Troglobiont		KY, TN	○	○	○
Scoterpes tricorner Shear, 2010		Chordeumatida	Troglobiont		TN	○	○	○
Scoterpes ventus Shear, 1972		Chordeumatida	Troglobiont	G3	TN	○	1	○
Scoterpes willreevesi Shear, 2010	Reeves' Cave Millipede	Chordeumatida	Troglobiont		AL, GA	○	○	○
Scotinella redempta (Gertsch, 1941)		Araneae	Trogloxene	GNR	IL	○	○	○
Scutacarus strinatii Cooreman, 1959		Trombidiformes	Accidental		IA	○	○	○
Scutigera coleoptrata Linnaeus (1758)	House Centipede	Scutigeromorpha	Trogloxene	GNR	IL	○	○	○
Scytodes intricata Banks, 1909	Spitting Spiders	Araneae	Trogloxene			○	○	○
Scytonotus australis Hoffman, 1962		Polydesmida	Accidental		TN	○	○	○
Scytonotus granulatus (Say, 1821)	Granulated Millipede	Polydesmida	Trogloxene	G5	AL, IN, KY, PA, TN	○	○	○
Seborgia hershleri Holsinger, 1992		Amphipoda	Stygobiont	G1G2	TX	○	38	○
Seborgia relicta Holsinger, 1980		Amphipoda	Stygobiont	G2G3	TX	○	96	○
Sehirus cinctus (Palisot, 1811)	White-Margined Burrower Bug	Hemiptera	Trogloxene	GNR	IL	○	○	○
Selachochthonius heterodentatus (Beier, 1955)		Pseudoscorpiones	Troglophile			○	○	○
Semionellus placidus (Wood, 1864)	Salmon Cherry Millipede	Polydesmida	Accidental	G3	IL	○	○	○
Semotilus atromaculatus (Mitchill, 1818)	Creek Chub	Cypriniformes	Stygoxene	G5 LC	AL, KY, TN	○	○	○
Sensillanura barberi (Handschin, 1928)		Poduromorpha	Troglophile	GNR	AR, TN	○	○	○
Sensillanura illina (Christiansen, K & Bellinger, P, 1980)		Poduromorpha	Trogloxene		IL	○	○	○
Sepedophilus crassus (Gravenhorst, 1802)		Coleoptera	Accidental	G5	IA	○	○	○
Sepedophilus littoreus (Linnaeus, 1758)	Staph Beetle	Coleoptera	Troglophile	GNR	GA	○	○	○
Sequoiadesmus krejcae Shear & Shelley, 2008		Polydesmida	Troglobiont		CA	○	1	○
Shibaia longisensilla (Shiba, 1969)		Actinedida	Troglophile		AR	○	○	○
Sicifera bifurca (O.P. Hay, 1882)		Amphipoda	Stygoxene	GNR	IL	○	○	○
Sicifera dentata (Hubricht, 1943)		Amphipoda	Stygoxene	GNR	IL, IN, OH	○	○	○
Sigmocheir calaveras Chamberlin, 1951		Polydesmida	Accidental		CA	○	○	○
Sigmoria fumimontis Shelley, 1981		Polydesmida	Accidental		TN	○	○	○
Simulium parnassum Malloch, 1914	Dark Black Fly	Diptera	Trogloxene	GNR	GA	○	○	○
Simulium tuberosum (Lundstrom, 1911)	Tubercled Black Fly	Diptera	Trogloxene	G5		○	○	○
Simulium venustum Say, 1823	Whitestockinged Black Fly	Diptera	Trogloxene	G5		○	○	○
Simulium vernum (Macquart, 1826)		Diptera	Trogloxene			○	○	○
Sinella agna Christiansen & Bellinger, 1980		Entomobryomorpha	Troglobiont	G3G4	WV	○	2	○
Sinella alata Christiansen, 1960		Entomobryomorpha	Troglobiont	G5	IN, Mexico	○	1	○
Sinella avita Christiansen, 1960	Avita Cave Springtail	Entomobryomorpha	Troglobiont	G3G4	IL, IN, KY, MO, Mexico	○	3	○
Sinella baca Christiansen & Bonet, 1980		Entomobryomorpha	Troglobiont	G3G4	BC, CA, TX	○	2	○
Sinella barri Christiansen, 1960	Barr's Cave Springtail	Entomobryomorpha	Troglobiont	G5	AL, AR, IL, IN, KY, MO, TN, VA, WI, Mexico	○	6	○
Sinella basidens Bonet, 1934		Entomobryomorpha	Troglobiont	G3G4	IN, KY, TN	○	3	○
Sinella caeca Zhao in Wenying, 1992		Entomobryomorpha	Troglophile		AL, IA, MN, MO, WI	○	○	○
Sinella cavernarum (Packard, 1888)		Entomobryomorpha	Troglobiont	G5	IL, IN, KY, MD, MO, OH, PA, TN, VA, LA, WA	○	11	○
Sinella hoffmani Wray, 1952	Hoffman's Cave Springtail	Entomobryomorpha	Troglobiont	G5	MD, PA, TN, VA, WV, KY, Mexico	○	5	○
Sinella krekeleri Christiansen, 1960		Entomobryomorpha	Troglobiont	G3G4	KY, WV, Mexico	○	3	○
Sinella tecta Christiansen & Bonet, 1980		Entomobryomorpha	Troglobiont	G1G2	CA	○	2	○
Sinella yosiia Bellinger & Christiansen, 1974		Entomobryomorpha	Troglobiont	G2G3	HI	○	1	○
Sitophilus oryzae Hustache, A., 1930	Rice Weevil	Coleoptera	Accidental	GNR	IA	○	○	○
Skistodiaptomus pallidus (Herrick, 1879)		Calanoida	Stygoxene	GNR	IN, KY	○	○	○
Sminthurides lepus Mills, HB, 1934		Symphypleona	Trogloxene	GNR	TN	○	○	○
Sminthurides malmgreni Janssens, F, 1992		Symphypleona	Trogloxene		IL	○	○	○
Sminthurinus henshawi (Folsom, JW, 1896)		Symphypleona	Trogloxene	GNR	IL	○	○	○
Soldanellonyx chappuisi Walter, 1917		Actinedida	Stygophile	G1	IN	○	○	○
Soldanellonyx chapuisi Walter, 1917		Actinedida	Stygobiont	G1	IN	○	○	○
Soldanellonyx monardi Walter, 1919	Mite	Actinedida	Stygophile		IN	○	○	○
Soldanellonyx morardi Walter, 1919		Actinedida	Stygobiont	G1	IN	○	○	○
Solenopsis geminata (Fabricius, 1804)	Tropical Fire Ant	Hymenoptera	Accidental			○	○	○
Somatochlora tenebrosa (Say, 1840)	Clamp-Tipped Emerald	Odonata	Accidental	G5 LC	AL	○	○	○
Sorex cinereus Kerr, 1792	Cinereus Shrew	Eulipotyphla	Accidental	G5 LC		○	○	○
Sorex fumeus G. M. Miller, 1895	Smoky Shrew	Eulipotyphla	Accidental	G5 LC	KY	○	○	○
Sorex hoyi Baird, 1857	American Pygmy Shrew	Eulipotyphla	Accidental	G5 LC		○	○	○
Sorex palustris Richardson, 1828	American Water Shrew	Eulipotyphla	Accidental	G5 LC		○	○	○
Sparganophilus eiseni Smith, 1895		Crassiclitellata	Troglophile		AL, NC	○	○	○
Sparganophilus tamesis Benham, 1892	Amerikaanse Wortelwroeter	Crassiclitellata	Troglophile		GA	○	○	○
Spelaedrilus multiporus Cook 1975		Lumbriculida	Stygobiont	G1	VA	○	2	○
Spelaeorchestia koloana Bousfield & Howarth, 1976	Kauai Cave Amphipod	Amphipoda	Troglobiont	G1G2 EN ESA	HI	○	4	○
Spelaeorchestia pahoehoe Myers & Lowry, 2023		Amphipoda	Troglobiont		HI	○	○	○
Speleobama vana Park, 1951		Coleoptera	Troglobiont	G1	AL	○	○	○
Speleochus blanchardensis Carlton, 2012		Coleoptera	Troglobiont		AR, AZ	○	1	○
Speleochus croceus Park, 1960		Coleoptera	Troglobiont	G1G2	AL	○	○	○
Speleochus eurous (Park, 1960)		Coleoptera	Troglobiont	G2G3	AL	○	○	○
Speleochus ferus Park, 1951		Coleoptera	Troglobiont	G1G2	AL, TN	○	1	○
Speleochus macosar Carlton, 2012		Coleoptera	Troglobiont		AR, AZ	○	1	○
Speleochus steevesi (Park, 1960)		Coleoptera	Troglobiont	G4	AL, TN	○	○	○
Speleochus stygicus Park, 1951		Coleoptera	Troglobiont	G1G2	AL	○	○	○
Speleochus synstygicus Park, 1956		Coleoptera	Troglobiont	G1	AL	○	○	○
Speleomaster lexi Briggs, 1974		Opiliones	Troglobiont	G1G2	ID	○	2	6
Speleomaster pecki Briggs, 1974		Opiliones	Troglobiont	G1G2	ID	○	1	○
Speleonura kenchristianseni Palacios-Vargas & Benito, 2007		Poduromorpha	Troglobiont	G1	VA	○	○	○
Speleonychia sengeri Briggs, 1974		Opiliones	Troglobiont	G1G2	WA	○	27	5
Speleonycta ozarkensis Espinasa et al., 2010	Ozark Cave Bristletail	Zygentoma	Troglobiont		AR, OK	○	○	1
Spelobia clunipes (Meigen, 1830)		Diptera	Troglophile	GNR	VA	○	○	○
Spelobia maculipennis (Spuler, 1925)		Diptera	Trogloxene	GNR	CO	○	○	○
Spelobia pseudosetaria (Duda, 1918)		Diptera	Trogloxene	GNR	CO	○	○	○
Spelobia semioculata (Richards, 1965)		Diptera	Troglophile	GNR	IA, IL, TN, VA, WI	○	○	○
Spelobia tenebrarum (Aldrich, 1897)	Cave dung fly	Diptera	Troglobiont	G5	AL, AR, GA, IL, IN, KY, MO, NY, OK, PA, TN, VA, WV	○	1	○
Spelobia tuberculosa Marshall, 1985		Diptera	Trogloxene	GNR	CO	○	○	○
Spelungula cavernicola Forster, 1987	Nelson Cave Spider	Araneae	Troglophile	DD		○	○	○
Speocirolana hardeni Bowman, 1992		Isopoda	Stygobiont	G2G3	TX	○	116	4
Speodesmus bicornourus Causey, 1959		Polydesmida	Troglobiont	G2G3	TX	○	252	○
Speodesmus castellanus Elliott, 2004		Polydesmida	Troglobiont		TX	○	115	○
Speodesmus echinourus Loomis, 1939		Polydesmida	Troglobiont	G2G3	TX	○	366	○
Speodesmus falcatus Elliott, 2004	Sickled Cave Millipede	Polydesmida	Troglobiont	GNR	TX	○	29	○
Speodesmus ivyi Elliott, 2004	Ivy's Cave Millipede	Polydesmida	Troglobiont	GNR	TX	○	18	○
Speodesmus reddelli Elliott, 2004	Reddell's Cave Millipede	Polydesmida	Troglobiont	GNR	TX	○	71	○
Speolepta leptogaster (Winnertz, 1864)		Diptera	Troglophile		IN	○	○	○
Speoplatyrhinus poulsoni Cooper & Kuehne, 1974	Alabama cavefish	Percopsiformes	Stygobiont	G1 CR ESA	AL	○	9	27
Speorthus reyesi Shear & Reddell, 2017		Polydesmida	Troglobiont		TX	○	○	○
Speorthus tuganbius Chamberlin, 1952		Polydesmida	Troglobiont	G2G3	NM, TX	○	○	○
Speoseya grahami Causey, 1963		Chordeumatida	Troglobiont	G2G3	CA	○	1	○
Speotrombicula trifurca (Ewing, 1933)		Trombidiformes	Troglophile			○	○	○
Spermophora senoculata (Dugès, 1836)	Shortbodied Cellar Spider	Araneae	Trogloxene	GNR	FL	○	○	○
Sphaeridia serrata (Folsom & Mills, 1938)		Symphypleona	Trogloxene	GNR	IL	○	○	○
Sphaerium simile (Say, 1817)	Grooved Fingernailclam	Sphaeriida	Accidental			○	○	○
Sphaerium transversum (Say, 1829)	Long Fingernail Clam	Sphaeriida	Accidental		MO	○	○	○
Sphaeroderus stenostomus (Weber, 1801)	Small Snail-Eating Ground Beetle	Coleoptera	Trogloxene	G5	GA	○	○	○
Sphaeromicola moria Hart, 1978		Podocopida	Stygobiont	G1G2	TX	○	○	○
Sphalloplana buchanani (Hyman, 1937)	Buchanan's Cave Flatworm	Tricladida	Stygobiont	G1G2	KY, MD, TN	○	10	○
Sphalloplana californica Kenk, 1977	California Cave Flatworm	Tricladida	Stygobiont	G1G2	CA	○	4	○
Sphalloplana chandleri Kenk, 1977	Chandler's Cave Flatworm	Tricladida	Stygobiont	G1G2	IN, TN, VA	○	17	○
Sphalloplana consimilis Kenk, 1977	Powell Valley Cave Flatworm	Tricladida	Stygobiont	G2G3	TN, VA	○	13	○
Sphalloplana culveri Kenk, 1977	Culver's Cave Flatworm	Tricladida	Stygobiont	G1	WV	○	1	○
Sphalloplana evaginata Kenk, 1977	Perryville Cave Flatworm	Tricladida	Stygobiont	G1G2	MO	○	20	○
Sphalloplana georgiana Hyman, 1954	Georgia Cave Flatworm	Tricladida	Stygobiont	G1	GA	○	2	○
Sphalloplana hoffmasteri (Hyman, 1954)	Hoffmaster's Cave Flatworm	Tricladida	Stygobiont	G3G4	MD, WV	○	12	○
Sphalloplana holsingeri Kenk, 1977	Holsinger's Cave Flatworm	Tricladida	Stygobiont	G1G2 NE	VA	○	10	○
Sphalloplana hubrichti (Hyman, 1945)	Hubricht's Cave Flatworm	Tricladida	Stygobiont	G2G4	IL, MO	○	21	○
Sphalloplana hypogea Kenk, 1984		Tricladida	Stygobiont	G1G2	VA	○	2	○
Sphalloplana kansensis Hyman, 1945	Kansas Cave Flatworm	Tricladida	Stygobiont	G1G2	KS	○	○	○
Sphalloplana mohri Hyman, 1938		Tricladida	Stygobiont	G3G4	TX	○	12	○
Sphalloplana percoeca (Packard, 1879)		Tricladida	Stygobiont	G5	AL, KY, TN, WV	○	25	○
Sphalloplana pricei Hyman, 1937	Refton Cave Flatworm	Tricladida	Stygobiont	G2G3	MD, PA	○	12	○
Sphalloplana subtilis Kenk, 1977	Biggers Cave Flatworm	Tricladida	Stygobiont	G1G2 NE	VA	○	3	○
Sphalloplana virginiana Hyman, 1945	Rockbridge County Cave Flatworm	Tricladida	Stygobiont	G1	VA	○	1	○
Sphalloplana weingartneri Kenk, 1970	Weingartner's cave flatworm	Tricladida	Stygobiont	G4	IN	○	3	○
Sphendononema guildingii Newport G. (1845)	Quarenta-Pernas	Scutigeromorpha	Trogloxene			○	○	○
Spinanycta alabamensis Espinasa, Gutierrez, Hinkle & Niemiller, 2024	Alabama Cave Bristletail	Zygentoma	Troglobiont		AL	○	○	○
Spiniphora slossonae (Malloch, 1912)		Diptera	Accidental	GNR	AL	○	○	○
Spongilla lacustris (Linnaeus, 1759)	Common Freshwater Sponge	Spongillida	Accidental	G5	KY	○	○	○
Steatoda triangulosa (Walckenaer, 1802)	Triangulate Bud Spider	Araneae	Trogloxene	GNR	IL	○	○	○
Steatornis caripensis von Humboldt, 1817	Oilbird	Steatornithiformes	Trogloxene	LC		○	○	○
Stegana coleoptrata (Scopoli, 1763)	Pomace Fly	Diptera	Trogloxene			○	○	○
Stelidota geminata (Say, 1825)	Strawberry Sap Beetle	Coleoptera	Trogloxene	GNR	KY	○	○	○
Stenistoderus rubripennis (LeConte, J. L., 1880)	Red-Winged Rove Beetle	Coleoptera	Accidental	GNR	IA	○	○	○
Stenochironomus pulchripennis (Coquillett, 1902)		Diptera	Trogloxene	GNR		○	○	○
Stenolophus ochropezus (Say, 1823)		Coleoptera	Trogloxene	G5	MO, TN	○	○	○
Stenonema femoratum (Say, 1823)	Cream Cahill	Ephemeroptera	Stygoxene	G5	AR, IL	○	○	○
Stenophilus californicus (Chamberlin, 1930)		Geophilomorpha	Troglobiont	G1G2	CA	○	○	○
Stenoponia americana (Baker, 1899)		Siphonaptera	Trogloxene	GNR	IA, TN	○	○	○
Stenotrema angellum Hubricht, 1958	Kentucky Slitmouth	Stylommatophora	Trogloxene	G4	KY, TN	○	○	○
Stenotrema edvardsi (Bland, 1858)	Ridge-And-Valley Slitmouth	Stylommatophora	Trogloxene	G4	KY	○	○	○
Stenotrema exodon (Pilsbry, 1900)	Alabama Slitmouth	Stylommatophora	Trogloxene	G2	AL	○	○	○
Stenotrema hirsutum (Say, 1817)	Hairy Slitmouth	Stylommatophora	Trogloxene	G5	KY	○	○	○
Stenotrema spinosum (I. Lea, 1831)	Carinate Slitmouth	Stylommatophora	Trogloxene	G4	AL, TN	○	○	○
Stenotrema stenotrema (L. Pfeiffer, 1842)	Inland Slitmouth	Stylommatophora	Trogloxene		AL, TN	○	○	○
Stenotrema turbinella (Clench & Archer, 1933)		Stylommatophora	Trogloxene		AL	○	○	○
Stenus alacer Casey, 1884		Coleoptera	Accidental		MO	○	○	○
Sternopsylla distincta (Rothschild, 1903)		Siphonaptera	Trogloxene		NM	○	○	○
Storeria occipitomaculata (Storer, 1839)	Mexican Yellowbelly Brown Snake [Hidalgoensis]	Squamata	Accidental	G5 LC	AR	○	○	○
Striaria eldora Chamberlin, 1953		Chordeumatida	Troglobiont	G2G3	CA	○	○	○
Striatura meridionalis (Pilsbry & Ferriss, 1906)	Median Striate	Stylommatophora	Trogloxene	G5	TN	○	○	○
Strigamia branneri Bollman C.H. (1888)		Geophilomorpha	Troglophile		IA, VA	○	○	○
Strix varia Barton, 1799	Barred Owl	Strigiformes	Trogloxene	G5 LC	FL	○	○	○
Strobilops affinis Pilsbry, 1893	Eightfold Pinecone	Stylommatophora	Trogloxene	G4	IL	○	○	○
Strobilops texasianus Pilsbry & Ferriss, 1906	Southern Pinecone	Stylommatophora	Trogloxene	G5	GA	○	○	○
Stygobromus abditus Holsinger, 1978	James Cave Amphipod	Amphipoda	Stygobiont	G2G3	VA	○	16	○
Stygobromus acicularis Holsinger & Lewis, 2025		Amphipoda	Stygobiont	GNR	MO	○	○	○
Stygobromus ackerlyi Holsinger, 1978		Amphipoda	Stygobiont	G1G2	GA	○	7	○
Stygobromus alabamensis (Stout, 1911)	Alabama cave amphipod	Amphipoda	Stygobiont	G5	AL, AR, KS, LA, MO, OK, TN, TX, MS	○	207	○
Stygobromus albapinus Taylor & Holsinger, 2011	White Pine amphipod	Amphipoda	Stygobiont		NV	○	4	○
Stygobromus allegheniensis (Holsinger, 1967)		Amphipoda	Stygobiont	G5	MD, NY, PA, WV	○	72	10
Stygobromus amicus Holsinger, 2014	Friendly Cave Amphipod	Amphipoda	Stygobiont	G1	MD	○	4	○
Stygobromus anacostensis Cannizzaro et al., 2024		Amphipoda	Stygobiont		DC	○	○	75
Stygobromus araeus (Holsinger, 1969)	Tidewater Interstitial Amphipod	Amphipoda	Stygobiont	G3 VU	NC, VA	○	24	○
Stygobromus arbucklensis Holsinger & Lewis, 2025	Arbuckle Mountains Cave Amphipod	Amphipoda	Stygobiont	GNR	OK	○	○	○
Stygobromus arizonensis Holsinger, 1974	Arizona Cave Amphipod	Amphipoda	Stygobiont	G1 VU	AZ	○	5	○
Stygobromus bakeri Gibson & Hutchins, 2021		Amphipoda	Stygobiont		TX	○	27	○
Stygobromus balconis (Hubricht, 1943)	Balcones Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	TX	○	28	○
Stygobromus baroodyi Holsinger, 1978	Rockbridge County Cave Amphipod	Amphipoda	Stygobiont	G1	VA	○	11	1
Stygobromus barri (Holsinger, 1967)	Barr's Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	MO, TN	○	8	○
Stygobromus barryi Holsinger, 1978		Amphipoda	Stygobiont	G1	TN	○	○	○
Stygobromus bifurcatus (Holsinger, 1967)	Bifurcated Cave Amphipod	Amphipoda	Stygobiont	G3G4 VU	TX	○	77	4
Stygobromus biggersi Holsinger, 1978	Biggers' Cave Amphipod	Amphipoda	Stygobiont	G2G4	MD, PA, VA, WV	○	22	1
Stygobromus blinni Wang & Holsinger, 2001	Blinn's Cave Amphipod	Amphipoda	Stygobiont	G1G2	AZ	○	2	○
Stygobromus borealis Hoslinger, 1978	Taconic Cave Amphipod	Amphipoda	Stygobiont	G2G3	MA, NY, QC, VT	○	7	○
Stygobromus boultoni Wang & Holsinger, 2001	Boulton's Cave Amphipod	Amphipoda	Stygobiont	G1G2	AZ	○	4	○
Stygobromus bowmani (Holsinger, 1967)	Bowman's Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	OK	○	3	○
Stygobromus caecilius Holsinger, 2011	Cecil Groundwater Amphipod	Amphipoda	Stygobiont	G1	MD	○	1	○
Stygobromus canadensis Holsinger, 1980	Castleguard Cave Amphipod	Amphipoda	Stygobiont	G1	AB	○	2	○
Stygobromus carolinensis Holsinger, 1978	Carolina Seep Amphipod	Amphipoda	Stygobiont	GH	NC	○	4	○
Stygobromus cherylae Wang & Holsinger, 2001		Amphipoda	Stygobiont	G1	CA	○	5	○
Stygobromus clantoni (Creaser, 1934)	Clanton's Cave Amphipod	Amphipoda	Stygobiont	G4 VU	KS, MO, AR, OK	○	35	○
Stygobromus coloradensis Ward, 1977	Colorado Cave Amphipod	Amphipoda	Stygobiont	G1G2	CO	○	16	○
Stygobromus conradi (Holsinger, 1967)	Conrad's Cave Amphipod	Amphipoda	Stygobiont	G1 VU	VA	○	15	○
Stygobromus cooperi (Holsinger, 1967)	Cooper's Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	WV	○	4	○
Stygobromus cowani Wang & Holsinger, 2001	Cowan's Cave Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus culveri Holsinger, 1978	Culver's Cave Amphipod	Amphipoda	Stygobiont	G1	WV	○	4	○
Stygobromus cumberlandus Holsinger, 1978	Cumberland Cave Amphipod	Amphipoda	Stygobiont	G3G4	VA	○	9	○
Stygobromus curroae Wang & Holsinger, 2001	Curro's Cave Amphipod	Amphipoda	Stygobiont	G1G2	NM	○	3	○
Stygobromus dejectus (Holsinger, 1967)	Cascade Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	TX	○	4	7
Stygobromus dicksoni Holsinger, 1978	Dickson cave stygobromid	Amphipoda	Stygobiont	G5	AL, GA, TN	○	22	○
Stygobromus doughertyensis Cannizzaro & Sawicki in Cannizzaro, Balding, Stine & Sawicki, 2019	Dougherty Plain Cave Amphipod	Amphipoda	Stygobiont	G1G2	FL, GA	○	6	○
Stygobromus duplus Wang & Holsinger, 2001		Amphipoda	Stygobiont	G1G2	WA	○	2	○
Stygobromus elatus (Holsinger, 1967)		Amphipoda	Stygobiont	G1 VU	AR	○	3	○
Stygobromus elliotti Holsinger, 1974	Elliott's Cave Amphipod	Amphipoda	Stygobiont	G1G2	WA	○	11	○
Stygobromus emarginatus Hubricht, 1943	Greenbrier Cave Amphipod	Amphipoda	Stygobiont	G3 VU	MD, WV	○	82	2
Stygobromus ephemerus (Holsinger, 1969)	Ephemeral Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	VA	○	9	○
Stygobromus estesi Holsinger, 1978	Craig County Cave Amphipod	Amphipoda	Stygobiont	G4	VA	○	9	○
Stygobromus exilis Hubricht, 1943	Central Kentucky Cave Amphipod	Amphipoda	Stygobiont	G5	AL, KY, TN	○	105	○
Stygobromus fecundus Holsinger, 1978		Amphipoda	Stygobiont	G1G2	TN	○	6	○
Stygobromus felleri Holsinger, 2011	Feller's Groundwater Amphipod	Amphipoda	Stygobiont	G1	MD	○	3	○
Stygobromus fergusoni Holsinger, 1978	Ferguson's Cave Amphipod	Amphipoda	Stygobiont	G1	VA	○	5	1
Stygobromus finleyi Holsinger, 1978	Finley's Cave Amphipod	Amphipoda	Stygobiont	G3G4	TN, VA	○	8	○
Stygobromus flagellatus (Benedict, 1896)	Ezell's Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	TX	○	308	5
Stygobromus floridanus Holsinger & Sawicki, 2016	Florida Panhandle Cave Amphipod	Amphipoda	Stygobiont	G1G2	FL, CA	○	12	43
Stygobromus foliatus Holsinger, 2011	Rappahannock Spring Amphipod	Amphipoda	Stygobiont	G2	MD, VA	○	10	2
Stygobromus fontinalis Wang & Holsinger, 2001		Amphipoda	Stygobiont	G1G2	CO	○	5	○
Stygobromus franzi Holsinger, 1978	Franz's Cave Amphipod	Amphipoda	Stygobiont	G3G4	MD, PA, WV	○	46	○
Stygobromus gallawayae Wang & Holsinger, 2001	Gallaway's Cave Amphipod	Amphipoda	Stygobiont	G1	CA	○	3	○
Stygobromus gardneri Holsinger & Lewis, 2025		Amphipoda	Stygobiont	GNR	AR, MO	○	○	○
Stygobromus glacialis Wang & Holsinger, 2001	Glacier National Park Cave Amphipod	Amphipoda	Stygobiont	G1	MT	○	7	○
Stygobromus gracilipes (Holsinger, 1967)		Amphipoda	Stygobiont	G3G4	MD, PA, VA, WV	○	39	8
Stygobromus gradyi Holsinger, 1974	Grady's Cave Amphipod	Amphipoda	Stygobiont	G1 VU	CA	○	9	○
Stygobromus grahami Holsinger, 1974	Graham's Cave Amphipod	Amphipoda	Stygobiont	G2	CA	○	15	○
Stygobromus grandis Holsinger, 1978		Amphipoda	Stygobiont	G1	GA	○	3	○
Stygobromus hadenoecus (Holsinger, 1966)	Devil's Sinkhole Amphipod	Amphipoda	Stygobiont	G1G2 VU	TX	○	38	○
Stygobromus harai Holsinger, 1974	Hara's Cave Amphipod	Amphipoda	Stygobiont	G1 VU	CA	○	6	○
Stygobromus hayi (Hubricht & Mackin, 1940)	Hay's Spring Amphipod	Amphipoda	Stygobiont	G1G2 EN ESA	DC, PA	○	11	11
Stygobromus herbsti Wang & Holsinger, 2001	Herbst's Cave Amphipod	Amphipoda	Stygobiont	G2G3	NV	○	11	○
Stygobromus heteropodus Hubricht, 1943	Pickle Springs Amphipod	Amphipoda	Stygobiont	G1G2 VU	MO	○	2	○
Stygobromus hoffmani Holsinger, 1978	Hoffman's Cave Amphipod	Amphipoda	Stygobiont	G2	VA	○	4	1
Stygobromus holsingeri Ward, 1977	Holsinger's Cave Amphipod	Amphipoda	Stygobiont	G1G2	CO	○	33	○
Stygobromus hubbardi Holsinger, 2009	Hupp's Hill Cave Amphipod	Amphipoda	Stygobiont	G1	VA	○	3	○
Stygobromus hubbsi Shoemaker, 1942	Malheur Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	OR	○	6	○
Stygobromus hyporheicus Wang & Holsinger, 2001	Hyporheic Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus idahoensis Wang & Holsinger, 2001	Idaho Groundwater Amphipod	Amphipoda	Stygobiont	G1	ID	○	2	○
Stygobromus imperialis Wang & Holsinger, 2001	Imperial Cave Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus indentatus (Holsinger, 1967)	Tidewater Amphipod	Amphipoda	Stygobiont	G3 VU	MD, NC, VA	○	22	3
Stygobromus inexpectatus Holsinger, 1978		Amphipoda	Stygobiont	G1	AL	○	2	○
Stygobromus interitus Holsinger, 1978	New Castle Murder Hole Cave Amphipod	Amphipoda	Stygobiont	G1G2	VA	○	2	○
Stygobromus interstitialis Wang & Holsinger, 2001	Interstitial Amphipod	Amphipoda	Stygobiont	G1G3	CO	○	3	○
Stygobromus iowae Hubricht, 1943	Iowa Cave Amphipod	Amphipoda	Stygobiont	G2G3	IA, IL, MN	○	8	○
Stygobromus jemezensis Wang & Holsinger, 2001	Jemez Mountains Groundwater Amphipod	Amphipoda	Stygobiont	G1G2	NM	○	2	○
Stygobromus kenki Holsinger, 1978	Rock Creek Groundwater Amphipod	Amphipoda	Stygobiont	G2	DC, MD, VA	○	15	○
Stygobromus lacicolus Holsinger, 1974	Lake Tahoe Groundwater Amphipod	Amphipoda	Stygobiont	G1	CA, NV	○	5	○
Stygobromus lanensis Wang & Holsinger, 2001	Lane County Groundwater Amphipod	Amphipoda	Stygobiont	G1G2	OR	○	2	○
Stygobromus latus Wang & Holsinger, 2001		Amphipoda	Stygobiont	G1G3	WA	○	4	○
Stygobromus leensis Holsinger, 1978	Lee County Cave Amphipod	Amphipoda	Stygobiont	G1G2	VA	○	5	1
Stygobromus limbus Wang & Holsinger, 2001	Border Cave Amphipod	Amphipoda	Stygobiont	G1G2	TX	○	1	○
Stygobromus longipes (Holsinger, 1966)	Long-legged Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	TX	○	14	7
Stygobromus lucifugus (Hay, 1882)	Rubious Cave Amphipod	Amphipoda	Stygobiont	G1G2 EX	IL	○	○	○
Stygobromus mackenziei Holsinger, 1974	MacKenzie's Cave Amphipod	Amphipoda	Stygobiont	G1 VU	CA	○	4	○
Stygobromus mackini Hubricht, 1943	Southwestern Virginia Cave Amphipod	Amphipoda	Stygobiont	G5	IN, KY, TN, VA, WV, TX	○	152	5
Stygobromus mausi Holsinger, 2009	Round Hill Cave Amphipod	Amphipoda	Stygobiont	G1	VA	○	2	○
Stygobromus minutus Holsinger, 1978		Amphipoda	Stygobiont	G2G3	GA	○	3	○
Stygobromus montanensis Holsinger, 1974		Amphipoda	Stygobiont	G1G2	MT	○	3	○
Stygobromus montanus (Holsinger, 1967)	Mountain Cave Amphipod	Amphipoda	Stygobiont	G1 VU	AR	○	6	○
Stygobromus morrisoni (Holsinger, 1967)	Morrison's Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	VA, WV	○	12	1
Stygobromus mundus (Holsinger, 1967)	Bath County Cave Amphipod	Amphipoda	Stygobiont	G1 VU	VA	○	7	1
Stygobromus myersae Wang & Holsinger, 2001	Myers' Groundwater Amphipod	Amphipoda	Stygobiont	G1	CA, NV	○	6	○
Stygobromus mysticus Holsinger, 1974	Secret Cave Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus nanus Holsinger, 1978		Amphipoda	Stygobiont	G1	WV	○	3	○
Stygobromus nortoni (Holsinger, 1969)	Norton's Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	TN	○	4	○
Stygobromus obrutus Holsinger, 1978	Pittsylvania Well Amphipod	Amphipoda	Stygobiont	G1G2	VA	○	2	○
Stygobromus obscurus Holsinger, 1974		Amphipoda	Stygobiont	G1G2	MT	○	3	○
Stygobromus onondagaensis (Hubricht & Mackin, 1940)	Onondaga Cave Amphipod	Amphipoda	Stygobiont	G3 VU	AR, KS, MO, OK	○	61	○
Stygobromus oregonensis Holsinger, 1974		Amphipoda	Stygobiont	G1G2	OR	○	3	○
Stygobromus ozarkensis (Holsinger, 1967)	Ozark Cave Amphipod	Amphipoda	Stygobiont	G4 VU	AR, MO, OK	○	59	1
Stygobromus parvus (Holsinger, 1969)	Minute Cave Amphipod	Amphipoda	Stygobiont	G2 VU	WV, VA	○	10	○
Stygobromus paveki Cannizzaro, Sawicki, Schaefer, Castrillo, Maxwell, Burch, Culver & Niemiller, 2026	Pavek's Groundwater Amphipod	Amphipoda	Stygobiont		MD	○	○	○
Stygobromus paxillus Holsinger, 2011	Prettyboy Groundwater Amphipod	Amphipoda	Stygobiont	G1	MD	○	3	○
Stygobromus pecki (Holsinger, 1967)	Peck's Cave Amphipod	Amphipoda	Stygobiont	G1G2 EN ESA	TX	○	36	33
Stygobromus pennaki (Ward, 1977)	Pennak Cave Amphipod	Amphipoda	Stygobiont	G2G3	CO	○	9	○
Stygobromus phreaticus Holsinger, 1978	Northern Virginia Well Amphipod	Amphipoda	Stygobiont	G1	VA	○	4	○
Stygobromus pizzinii (Shoemaker, 1938	Pizzini's Cave Amphipod	Amphipoda	Stygobiont	G3G4 VU	DC, MD, PA, VA	○	89	3
Stygobromus pollostus Holsinger, 1978	Least Cave Amphipod	Amphipoda	Stygobiont	G2G3	WV	○	8	○
Stygobromus pseudospinosus Holsinger, 1978	Luray Caverns Amphipod	Amphipoda	Stygobiont	G1	VA	○	7	○
Stygobromus putealis (Holmes, 1909)	Wisconsin Well Amphipod	Amphipoda	Stygobiont	G2G3 VU	WI	○	2	○
Stygobromus puteanus Holsinger, 1974		Amphipoda	Stygobiont	G1G2	MT	○	2	○
Stygobromus quatsinensis Holsinger & Shaw, 1987	Quatsino Cave Amphipod	Amphipoda	Stygobiont	G1G2	AK, BC	○	21	○
Stygobromus rallus Wang & Holsinger, 2001	Narrow Groundwater Amphipod	Amphipoda	Stygobiont	G1G3	WA	○	3	○
Stygobromus redactus Holsinger, 1978	Pattons Cave Amphipod	Amphipoda	Stygobiont	G1	WV	○	3	1
Stygobromus reddelli (Holsinger, 1966)		Amphipoda	Stygobiont	G1G2 VU	TX	○	6	○
Stygobromus rudolphi Wang & Holsinger, 2001	Rudolph's Groundwater Amphipod	Amphipoda	Stygobiont	G1	CA	○	3	○
Stygobromus russelli (Holsinger, 1967)	Russell's Cave Amphipod	Amphipoda	Stygobiont	G4	TX	○	396	11
Stygobromus saltuaris Wang & Holsinger, 2001	Williamette Natonal Forest Groundwater Amphipod	Amphipoda	Stygobiont	G1G2	OR	○	2	○
Stygobromus scottsruni Cannizzaro, Sawicki, Schaefer, Castrillo, Maxwell, Burch, Culver & Niemiller, 2026	Scotts Run Groundwater Amphipod	Amphipoda	Stygobiont		VA	○	○	○
Stygobromus secundus Bousfield & Holsinger, 1981		Amphipoda	Stygobiont	G1	AB	○	4	○
Stygobromus sextarius Holsinger, 2009	Capital Area Groundwater Amphipod	Amphipoda	Stygobiont	G1	DC, MD, VA	○	4	○
Stygobromus sheldoni Holsinger, 1974	Sheldon's Groundwater Amphipod	Amphipoda	Stygobiont	G1	CA	○	15	○
Stygobromus sierrensis Holsinger, 1974	Sierra Groundwater Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus simplex Wang & Holsinger, 2001	Simple Cave Amphipod	Amphipoda	Stygobiont	G1G2	CO	○	1	○
Stygobromus smithi Hubricht, 1943	Alabama Well Amphipod	Amphipoda	Stygobiont	G2G3 VU	AL, TN	○	3	○
Stygobromus sparsus Holsinger, 1978	Gregory Cave Amphipod	Amphipoda	Stygobiont	G1	TN	○	8	○
Stygobromus spinatus (Holsinger, 1967)	Spiny Cave Amphipod	Amphipoda	Stygobiont	G2G3 VU	WV, VA	○	92	1
Stygobromus spinosus (Hubricht & Mackin, 1940)	Blue Ridge Cave Amphipod	Amphipoda	Stygobiont	G3	VA	○	16	1
Stygobromus stegerorum Holsinger, 1978	Madison Cave Amphipod	Amphipoda	Stygobiont	G1	VA	○	5	6
Stygobromus stellmacki (Holsinger, 1967)	Stellmack's Cave Amphipod	Amphipoda	Stygobiont	G1G2 VU	PA	○	6	○
Stygobromus subtilis (Hubricht, 1943)	Subtle Cave Amphipod	Amphipoda	Stygobiont	G2 VU	IL, MI, MO	○	17	○
Stygobromus tahoensis Holsinger, 1974		Amphipoda	Stygobiont	G1	CA, NV	○	16	○
Stygobromus tenuis (Smith, 1874)		Amphipoda	Stygobiont	G4	CT, DC, MA, MD, NY, PA, VA, WV	○	292	102
Stygobromus trinus Wang & Holsinger, 2001	Trinity County Cave Amphipod	Amphipoda	Stygobiont	G1	CA	○	2	○
Stygobromus tritus Holsinger, 1974	Worn Groundwater Amphipod	Amphipoda	Stygobiont	G1	MT	○	5	○
Stygobromus urospinatus Wang & Holsinger, 2001	Spinose Cave Amphipod	Amphipoda	Stygobiont	G1G3	CO	○	6	○
Stygobromus utahensis Wang & Holsinger, 2001	Utah Cave Amphipod	Amphipoda	Stygobiont	G1G2	UT	○	2	○
Stygobromus vitreus Cope, 1872	Mammoth Cave stygobromid	Amphipoda	Stygobiont	G4	AL, KY, TN, IN	○	40	○
Stygobromus wahkeenensis Wang & Holsinger, 2001	Wahkeena Creek Groundwater Amphipod	Amphipoda	Stygobiont	G1G2	OR	○	3	○
Stygobromus wardi Wang & Holsinger, 2001	Ward's Groundwater Amphipod	Amphipoda	Stygobiont	G1G2	CO	○	3	○
Stygobromus wengerorum Holsinger, 1974	Wenger Cave Amphipod	Amphipoda	Stygobiont	G1 VU	CA	○	4	○
Stygonyx courtneyi Bousfield & Holsinger, 1989		Amphipoda	Stygobiont	G1G2	OR	○	13	○
Stygoparnus comalensis Barr & Spangler, 1992	Comal Springs Dryopid Beetle	Coleoptera	Stygobiont	G1G2 ESA	TX	○	14	○
Stygoporus oregonensis Larson & LaBonte, 1994		Coleoptera	Stygobiont	G1G2	OR	○	4	12
Stygopyrgus bartonensis Hershler & Longley, 1986	Barton cavesnail	Littorinimorpha	Stygobiont	G1	TX	○	30	15
Stygopyrgus gracilis Perez et al., 2025		Littorinimorpha	Stygobiont		TX	○	○	○
Stygopyrgus variabilis Perez et al., 2025		Littorinimorpha	Stygobiont		TX	○	○	○
Stylodrilus beattiei Cook, 1975		Lumbriculida	Stygobiont	G1	VA, WV	○	5	○
Stylodrilus californianus Rodriguez, 1996		Lumbriculida	Stygobiont		CA	○	10	○
Stylodrilus wahkeenensis Rodriguez & Coates, 1996		Lumbriculida	Stygobiont		AL, OR, TN	○	6	○
Subulina octona (Bruguière, 1789)	Miniature Awlsnail	Stylommatophora	Trogloxene	G5		○	○	○
Superodontella cornifer (Mills, HB, 1934)		Poduromorpha	Trogloxene	GNR	IL	○	○	○
Superodontella substriata (Wray, 1952)		Poduromorpha	Trogloxene	GNR	IL	○	○	○
Sus scrofa Linnaeus, 1758	Eurasian Wild Pig	Artiodactyla	Accidental	G5 LC	KY	○	○	○
Sylvilagus floridanus (Allen, 1890)	Eastern Cottontail	Lagomorpha	Accidental	G5 LC	AL, KY	○	○	○
Syngrapha alias (Ottolengui, 1902)	Spruce Climbing Cutworm	Lepidoptera	Trogloxene	G5		○	○	○
Syrphus rectus Osten Sacken, 1875		Diptera	Accidental			○	○	○
Tachinus fimbriatus Gravenhorst, 1802		Coleoptera	Trogloxene	G5	GA	○	○	○
Tachinus fumipennis (Say, 1832)		Coleoptera	Trogloxene	G5	IA	○	○	○
Tachycines asynamorus Adelung, 1902	Greenhouse Camel Cricket	Orthoptera	Trogloxene	GNR	AL, GA, IL, OK	○	○	○
Tachypeza humeralis Melander, 1928		Diptera	Trogloxene	GNR		○	○	○
Tachyporus maculipennis LeConte, J. L., 1866		Coleoptera	Trogloxene		IL	○	○	○
Tachys proximus (Say, 1823)		Coleoptera	Troglophile	GNR	NM	○	○	○
Tachys pumilus (Dejean, 1831)		Coleoptera	Accidental	GNR	MO	○	○	○
Tachys scitulus LeConte, 1848		Coleoptera	Trogloxene	G5	VA	○	○	○
Tachyura lutea (Andrewes, 1925)		Coleoptera	Trogloxene		TN	○	○	○
Tadarida brasiliensis (I. Geoffroy, 1824)	Brazilian Free-Tailed Bat	Chiroptera	Trogloxene	G5 LC	FL, KY, NM, TX	○	○	○
Taiyutyla loftinae Shear & Krejca, 2011		Chordeumatida	Troglobiont		CA	○	○	○
Tamias striatus (Linnaeus, 1758)	Eastern Chipmunk	Rodentia	Trogloxene	G5 LC	AR, IN, KY, TN	○	○	○
Tamiasciurus hudsonicus (Erxleben, 1777)	Red Squirrel	Rodentia	Accidental	G5 LC	KY	○	○	○
Tanytarsus recurvatus Brundin, 1947		Diptera	Trogloxene	GNR	GA	○	○	○
Taracus aspenae Shear, 2018		Opiliones	Troglobiont		OR	○	1	○
Taracus fluvipileus Shear & Warfel, 2016		Opiliones	Troglobiont		CA	○	1	○
Taracus marchingtoni Shear & Warfel, 2016		Opiliones	Troglobiont		OR	○	○	○
Taracus silvestrii Briggs, 1969		Opiliones	Troglobiont	G1G2	OR	○	1	○
Taracus taylori Shear & Warfel, 2016		Opiliones	Troglobiont	GNR	NV	○	6	○
Taranucnus ornithes (Barrows, 1940)		Araneae	Accidental	GNR	AL	○	○	○
Tarebia granifera (Lamarck, 1816)	Quilted Melania	Cerithiida	Stygoxene	G5 LC	FL	○	○	○
Tarlina noorundi Gray, 1987		Araneae	Troglophile			○	○	○
Tarnania tarnanii (Dziedzicki, 1910)		Diptera	Troglophile	GNR		○	○	○
Tartarocreagris altimana Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris amblyopa Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris attenuata Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris domina Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris grubbsi Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris hoodensis Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	3	○
Tartarocreagris infernalis (Muchmore, 1969)		Pseudoscorpiones	Troglobiont	G2G3	TX	○	5	○
Tartarocreagris intermedia Muchmore, 1992		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris proserpina Muchmore, 2001		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Tartarocreagris reyesi Muchmore, 2001		Pseudoscorpiones	Troglobiont	GNR	TX	○	○	○
Tartarocreagris texana (Muchmore, 1969)	Tooth Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1G2 DD ESA	TX	○	1	○
Taxidea taxus (Schreber, 1777)	American Badger	Carnivora	Trogloxene	G5 LC		○	○	○
Tayshaneta anopica (Gertsch, 1974)		Araneae	Troglobiont	G1G2	TX	○	11	○
Tayshaneta archambaulti Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	19	○
Tayshaneta bullis (Cokendolpher, 2004)		Araneae	Troglobiont	GNR	TX	○	12	○
Tayshaneta concinna (Gertsch, 1974)		Araneae	Troglobiont	G1G2	TX	○	15	○
Tayshaneta fawcetti Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	41	○
Tayshaneta microps (Gertsch, 1974)	Government Canyon Bat Cave Spider	Araneae	Troglobiont	G1 ESA	TX	○	24	○
Tayshaneta myopica (Gertsch, 1974)	Tooth Cave Spider	Araneae	Troglobiont	G1G2 DD ESA	TX	○	74	○
Tayshaneta oconnorae Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	1	○
Tayshaneta sandersi Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	9	○
Tayshaneta sprousei Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	14	○
Tayshaneta vidrio Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	○	○
Tayshaneta whitei Ledford et al., 2012		Araneae	Troglobiont	GNR	TX	○	12	○
Tectocepheus velatus (Michael, 1880)		Sarcoptiformes	Accidental	GNR	IA	○	○	○
Tegenaria domestica (Clerck, 1757)	Barn Funnel Weaver	Araneae	Troglophile	GNR	AL, GA, IL, IN	○	○	○
Tegenaria pagana C. L. Koch, 1840	Rural Funnel-Web Spider	Araneae	Trogloxene		NM	○	○	○
Telomerina cana Marshall & Roháček, 1984		Diptera	Troglophile		AL, TN	○	○	○
Telomerina chillcotti Marshall & Roháček, 1984		Diptera	Troglophile	GNR	TN, TX	○	○	○
Telomerina flavipes (Meigen, 1830)		Diptera	Troglophile	GNR	AR	○	○	○
Tenuiphantes sabulosus (Keyserling, 1886)		Araneae	Trogloxene	GNR	AL, IL, TN	○	○	○
Terrapene carolina (Linnaeus, 1758)	Common Box Turtle	Testudines	Accidental	G5 VU	AL, FL, GA, IL, KY, TN	○	○	○
Terrapene triunguis (Agassiz, 1857)	Three-Toed Box Turtle	Testudines	Accidental	GNR	AR	○	○	○
Terrilimosina racovitzai (Bezzi, 1911)		Diptera	Troglophile	GNR	IA, IL, NY, PA, WI	○	○	○
Tethysbaena texana (Maguire, 1965)		Thermosbaenacea	Stygobiont	GNR	TX	○	112	○
Tetracion jonesi Hoffman, 1956	Jones' Cave Millipede	Callipodida	Troglobiont	G3G4	AL, TN	○	7	17
Tetracion tennesseensis Causey, 1959	Tennessee Cave Millipede	Callipodida	Troglobiont	G2G3	TN	○	○	36
Tetragnatha elongata Walckenaer, 1841	Elongate Stilt Spider	Araneae	Trogloxene	G5		○	○	○
Tetragnatha laboriosa Hentz, 1850	Long-Jawed Orb Weaver	Araneae	Trogloxene	G5	IN	○	○	○
Tetragnatha shoshone Levi, 1981	Amerikanische Streckerspinne	Araneae	Trogloxene	GNR	IL	○	○	○
Tetragnatha versicolor Walckenaer, 1841	Versicolor Long-Jawed Orbweaver	Araneae	Trogloxene	G5	AL, KY	○	○	○
Texamaurops reddelli Barr & Steeves, 1963	Kretschmarr Cave Mold Beetle	Coleoptera	Troglobiont	G1G2 ESA	TX	○	17	○
Texanobathynella aaronswinki Camacho & Hutchins, 2021		Bathynellacea	Stygobiont		TX	○	○	○
Texanobathynella bowmani (Delamare et al., 1975)		Bathynellacea	Stygobiont	GNR	TX	○	○	○
Texanobathynella coloradoensis Camacho & Hutchins, 2021		Bathynellacea	Stygobiont		TX	○	○	○
Texanobathynella sachi Cho, 1996		Bathynellacea	Stygobiont		CA	○	3	○
Texapyrgus diaboli (Pilsbry & Ferriss, 1906)	Devil Tryonia	Littorinimorpha	Stygobiont		TX	○	○	○
Texapyrgus longleyi Thompson & Hershler, 1991	Striated hydrobe	Littorinimorpha	Stygobiont	G1	TX	○	9	1
Texella cokendolpheri Ubick & Briggs, 1992	Cokendolpher Cave Harvestman	Opiliones	Troglobiont	G1 ESA	TX	○	5	○
Texella elliotti Ubick & Briggs, 2004		Opiliones	Troglobiont		TX	○	1	○
Texella hardeni Ubick & Briggs, 1992		Opiliones	Troglobiont	G1G2	TX	○	5	○
Texella hilgerensis Ubick & Briggs, 2004		Opiliones	Troglobiont		TX	○	2	○
Texella martensi Ubick, 2021		Opiliones	Troglobiont		CA	○	1	○
Texella mulaiki Goodnight & Goodnight, 1942		Opiliones	Troglobiont	G2G3	TX	○	26	○
Texella reyesi Ubick & Briggs, 1992	Bone Cave Harvestman	Opiliones	Troglobiont	G2G3 ESA	TX	○	210	3
Texella shoshone Ubick & Briggs, 1992	Shoshone Cave Harvestman	Opiliones	Troglobiont	G1	CA	○	1	○
Texella tuberculata Ubick & Briggs, 2004		Opiliones	Troglobiont		TX	○	4	○
Texella welbourni Ubick & Briggs, 1992		Opiliones	Troglobiont	G1G2	NM	○	1	○
Texella whitei Ubick & Briggs, 2004		Opiliones	Troglobiont		TX	○	3	○
Texicerberus amistad Hutchins et al., 2022		Isopoda	Stygobiont	GNR	TX	○	23	○
Texicerberus castilloi Hutchins et al., 2022		Isopoda	Stygobiont		TX	○	6	○
Texicerberus schotteae Hutchins et al., 2022		Isopoda	Stygobiont	GNR	TX	○	22	○
Texiweckelia texensis (Holsinger, 1973)		Amphipoda	Stygobiont	G2G3	TX	○	268	○
Texiweckeliopsis insolita (Holsinger, 1980)		Amphipoda	Stygobiont	G3	TX	○	303	○
Texoreddellia aquilonalis Espinasa & Giribet, 2009		Zygentoma	Troglobiont		TX	○	○	8
Texoreddellia capitesquameo Espinasa & Giribet, 2009		Zygentoma	Troglobiont		TX	○	○	1
Texoreddellia coahuilensis Espinasa & Giribet, 2009		Zygentoma	Troglobiont		TX, Mexico	○	○	5
Texoreddellia media Espinasa & Giribet, 2009		Zygentoma	Troglobiont		TX	○	○	17
Texoreddellia occasus Espinasa & Giribet, 2009		Zygentoma	Troglobiont		TX	○	○	○
Texoreddellia texensis (Ulrich, 1902)		Zygentoma	Troglobiont	G4	TX	○	○	17
Thalassaphorura encarpata (Denis, 1931)	Springtail	Poduromorpha	Trogloxene		IL	○	○	○
Thalkethops grallatrix Crabill, 1960		Scolopendromorpha	Troglobiont	G1G2	NM	○	2	○
Thamnophis proximus (Say, 1823)	Western Ribbon Snake	Squamata	Accidental	G5 LC		○	○	○
Thaumatogryllus cavicola Gurney & Rentz, 1978	Vovanoes Cave Cricket	Orthoptera	Troglobiont	G1G2 VU	HI	○	4	○
Theatops phanus Chamberlin, 1951		Scolopendromorpha	Troglobiont	G2G3	TX	○	30	○
Theotima makua Gertsch, 1973		Araneae	Troglobiont	G2G3	HI	○	1	○
Theridion flavonotatum Becker, 1879		Araneae	Trogloxene		AL	○	○	○
Theridion glaucescens Becker, 1879		Araneae	Trogloxene	GNR	AL	○	○	○
Theridiosoma gemmosum (Koch, 1877)	Common Eastern Ray Spider	Araneae	Trogloxene	G5	AL, GA, IL, IN	○	○	○
Theridula opulenta (Walckenaer, 1841)	Cobweb Spiders	Araneae	Accidental	GNR	AL	○	○	○
Thermobia domestica (Packard, 1873)	Firebrat	Archaeognatha	Accidental	GNR	IA	○	○	○
Thesiastes fossulatus (Brendel, 1890)		Coleoptera	Trogloxene		IL	○	○	○
Thymoites marxi (Crosby, 1906)		Araneae	Trogloxene	GNR	AL, GA	○	○	○
Thymoites minero Roth, 1992		Araneae	Troglobiont	G1G2	AZ	○	1	○
Tidarren sisyphoides (Walckenaer, 1841)	Tent Cobweb Weaver	Araneae	Trogloxene		AL	○	○	○
Tingupa pallida Loomis, 1939	Tingupa Cave Millipede	Chordeumatida	Troglobiont	G4	AR, IL, MO, TN	○	13	○
Tipula abdominalis (Say, 1823)	Giant Crane Fly	Diptera	Trogloxene	GNR	GA	○	○	○
Tipula algonquin Alexander, 1915		Diptera	Trogloxene	GNR	AR	○	○	○
Tipula caloptera Loew, 1863		Diptera	Trogloxene	GNR		○	○	○
Tmesiphorus costalis LeConte, J. L., 1849		Coleoptera	Trogloxene	GNR	AL	○	○	○
Tokophrya cyclopum (Claparède & Lachmann, 1859) Bütschli, 1889		Endogenida	Stygoxene		KY	○	○	○
Tolus appalachius Goodnight & Goodnight, 1942	Appalachian Cave Spider	Opiliones	Troglobiont	G3G4	AL, TN	○	2	4
Tomocerus curtus Christiansen, 1965		Entomobryomorpha	Troglophile		IA	○	○	○
Tomocerus dubius Christiansen, 1965		Entomobryomorpha	Troglophile		FL, KY	○	○	○
Tomocerus flavescens Gisin, 1944		Entomobryomorpha	Troglophile		GA, IL, TN	○	○	○
Tomocerus vulgaris (Tullberg, 1871)		Entomobryomorpha	Troglophile	GNR	TN, WI	○	○	○
Tomoderus impressulus Casey, 1895		Coleoptera	Accidental		TN	○	○	○
Toxidium compressum Zimmermann, C., 1869		Coleoptera	Accidental	GNR	IA	○	○	○
Trachelipus rathkii (Brandt, 1833)	Rathke's Woodlouse	Isopoda	Trogloxene	GNR	KY, WV	○	○	○
Trachemys scripta (Thunberg, 1792)	Pond Slider	Testudines	Accidental	G5 LC	FL	○	○	○
Traegaardhia gracilis Zacharda, 2010		Actinedida	Troglophile			○	○	○
Traegaardhia holsingeri (Zacharda, 1980)		Actinedida	Troglobiont		AR, KY, MO, OK	○	○	○
Traegaardhia paralleloseta (Zacharda, 1985)		Actinedida	Troglobiont	G1	VA	○	○	○
Traegaardhia similis Zacharda et al., 2010		Actinedida	Troglobiont		AR, MO	○	12	○
Trechus cumberlandus Barr, 1962		Coleoptera	Troglophile	G2	KY, TN	○	○	○
Trechus tennesseensis Barr, 1962		Coleoptera	Troglophile	GNR	TN	○	○	○
Trechus tuckaleechee Barr, 1962		Coleoptera	Troglophile	GNR	TN	○	○	○
Triacanthella copelandi (Wray, DL, 1963)		Poduromorpha	Trogloxene	G1	TN	○	○	○
Trichobius major Coquillett, 1899		Diptera	Trogloxene	GNR	FL, NM	○	○	○
Trichocera fattigiana Alexander, 1952		Diptera	Trogloxene		GA	○	○	○
Trichocera hiemalis (De Geer, 1776)	Winterpluimantennemug	Diptera	Trogloxene	GNR		○	○	○
Trichocera maculipennis Meigen, 1818		Diptera	Trogloxene	GNR		○	○	○
Trichocera regelationis (Linnaeus, 1758)	Dooimug	Diptera	Trogloxene	GNR	IA, IL	○	○	○
Trichodrilus comalensis Fend, 2023		Lumbriculida	Stygobiont		TX	○	6	○
Trichodrilus culveri Cook, 1975		Lumbriculida	Stygobiont	G1	WV	○	2	○
Trichomorpha capillata Loomis, 1964		Polydesmida	Trogloxene			○	○	○
Trichoniscus provisorius Racovitza, 1908	Ansarisiiranen	Isopoda	Troglophile		VA	○	○	○
Trichoniscus pusillus Brandt, 1833	Common Pygmy Woodlouse	Isopoda	Troglophile		KY, OK, TN, VA	○	○	○
Trichopetalum dux (Chamberlin, 1940)		Chordeumatida	Troglophile	G4	KY	○	○	○
Trichopetalum stannardi (Causey, 1951)		Chordeumatida	Troglophile		MD	○	○	○
Trichopetalum uncum Cook & Collins, 1895		Chordeumatida	Troglobiont	GNR	IN, AR, MO	○	○	○
Trichophya pilicornis (Gyllenhal, 1810)	Staph Beetle	Coleoptera	Trogloxene	GNR	MN	○	○	○
Trichotichnus dichrous (Dejean, 1829)		Coleoptera	Accidental	GNR	AL	○	○	○
Trichotichnus fulgens (Csiki, 1932)		Coleoptera	Accidental		MO	○	○	○
Tridenchthonius juxtlahuaca J. C. Chamberlin & R. V. Chamberlin, 1945		Pseudoscorpiones	Troglophile			○	○	○
Trigenotyla blacki Shear, 2003	Black's cave millipede	Chordeumatida	Troglobiont	G1	OK	○	○	○
Trigenotyla parca Causey, 1951		Chordeumatida	Troglophile	G2	AR	○	○	○
Trimiomelba dubia (LeConte, J. L., 1849)		Coleoptera	Troglophile	GNR	TN	○	○	○
Trinectes maculatus (Bloch & Schneider, 1801)	Freshwater Flounder	Carangiformes	Stygoxene	G5 LC	FL	○	○	○
Triodopsis complanata (Pilsbry, 1898)	Glossy Threetooth	Stylommatophora	Trogloxene	G2	KY, TN	○	○	○
Triodopsis hopetonensis (Shuttleworth, 1852)	Magnolia Threetooth	Stylommatophora	Trogloxene	G4	FL	○	○	○
Triodopsis tridentata (Say, 1817)	Northern Threetooth	Stylommatophora	Trogloxene	G5	AL	○	○	○
Triodopsis vulgata Pilsbry, 1940	Dished Threetooth	Stylommatophora	Trogloxene	G5	IL	○	○	○
Triphosa haesitata (Guenée, [1858])	Tissue Moth	Lepidoptera	Trogloxene	G5		○	○	○
Trisetobisium fallax (J. C. Chamberlin, 1962)		Pseudoscorpiones	Troglophile	GNR	AL	○	○	○
Trochosa terricola Thorell, 1856	Gewone Nachtwolfspin	Araneae	Accidental	G5		○	○	○
Troglichthys rosae (Eigenmann, 1898)	Ozark cavefish	Percopsiformes	Stygobiont	G3 NT ESA	AR, MO, OK	○	4	○
Troglocambarus maclanei Hobbs, 1942	North Florida Spider Cave Crayfish	Decapoda	Stygobiont	G1G2 NT	FL	○	42	6
Trogloglanis pattersoni Eigenmann, 1919	Toothless Blindcat	Siluriformes	Stygobiont	G1G2 VU ESA?	TX	○	104	4
Trombicula cavernarum Ewing, 1933		Trombidiformes	Troglophile			○	○	○
Trombicula tibbettsi Brennan & White, 1960		Trombidiformes	Trogloxene		AL, TX	○	○	○
Tropisternus collaris (Fabricius, 1775)	Collared Water Scavenger Beetle	Coleoptera	Accidental	GNR	AR	○	○	○
Tropocyclops extensus Kiefer, 1931		Cyclopoida	Stygoxene		IN	○	○	○
Tropocyclops prasinus (Fischer, 1860)		Cyclopoida	Stygoxene		IL, IN, KY	○	○	○
Trox aequalis Say, 1832	Even Hide Scarab Beetle	Coleoptera	Trogloxene	G5	GA	○	○	○
Trox laticollis LeConte, 1854		Coleoptera	Trogloxene	GNR	IA	○	○	○
Trox scaber (Linnaeus, 1767)	Hide Beetle	Coleoptera	Trogloxene	GNR		○	○	○
Tuberochernes aalbui Muchmore, 1997		Pseudoscorpiones	Troglobiont	G1G2	CA	○	○	○
Tuberochernes cohni Harvey & Wynne, 2014		Pseudoscorpiones	Troglobiont	GNR	AZ	○	○	○
Tuberochernes ubicki Muchmore, 1997		Pseudoscorpiones	Troglobiont	G1	AZ	○	1	○
Tuberona leonidasi (Kulkoyluoglu et al., 2023)		Podocopida	Stygobiont		TX	○	○	○
Tullbergia clavata Wills, 1934		Poduromorpha	Troglophile		IA, IL	○	○	○
Tullbergia granulata Mills, HB, 1934		Poduromorpha	Troglophile		IA	○	○	○
Tullbergia macrochaeta (Rusek, 1976)		Poduromorpha	Accidental		IA	○	○	○
Tychobythinus bythinioides (Brendel, 1865)		Coleoptera	Troglophile	GNR	IL	○	○	○
Tychobythinus hubrichti (Park, 1960)		Coleoptera	Troglobiont	G1G2	KY	○	1	○
Tychobythinus jonesi (Park, 1951)		Coleoptera	Troglobiont	G1G2	AL	○	○	○
Tychobythinus strinatii Besuchet, 1982		Coleoptera	Troglobiont	G1G2	TN	○	○	○
Tylparua troglodytes Evenhuis, 2024		Diptera	Troglobiont		HI	○	○	○
Typhlichthys eigenmanni Charlton, 1933	Salem Plateau Cavefish	Percopsiformes	Stygobiont	G3	AR, MO	○	33	148
Typhlichthys subterraneus Girard, 1859	Southern Cavefish	Percopsiformes	Stygobiont	G4 NT	AL, GA, KY, TN	○	190	716
Typhlobius caecus Bollman (1888)		Lithobiomorpha	Troglophile		AL, GA	○	○	○
Typhloelmis caroline Barr et al., 2015		Coleoptera	Stygobiont	GNR	TX	○	3	○
Typhloelmis finegan Barr et al., 2015		Coleoptera	Stygobiont	GNR	TX	○	3	○
Typhloelmis sanfelipe Barr et al., 2015		Coleoptera	Stygobiont	GNR	TX	○	3	○
Typhloelmis spangleri Barr, 2023		Coleoptera	Stygobiont	GNR	TX	○	○	○
Typhlogastrura alabamensis (Thibaud, 1975)		Poduromorpha	Troglobiont	G1G2	AL	○	○	○
Typhlogastrura christianseni Thibaud, 1975		Poduromorpha	Troglobiont	G1	AL, TN	○	○	○
Typhlogastrura fousheensis Christiansen & Wang, 2006	Foushee Cave Springtail	Poduromorpha	Troglobiont	G1	AR	○	1	○
Typhlogastrura helleri Christiansen & Wang, 2006	Heller Cave Springtail	Poduromorpha	Troglobiont	GNR	PA	○	1	○
Typhlogastrura hubbardi Thibaud, 1995		Poduromorpha	Troglobiont	G2G3	VA	○	○	○
Typhlogastrura valentini Thibaud, 1996	Valentine's Cave Springtail	Poduromorpha	Troglobiont	G1	VA	○	○	○
Typhlonesticus silvestrii (Fage, 1929)	Silvestri's Cave Spider	Araneae	Troglophile		CA, OR	○	○	○
Tyrannochthonius alabamensis Muchmore, 1996		Pseudoscorpiones	Troglophile	G1	AL	○	○	○
Tyrannochthonius aladdinensis Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius aralu Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius archeri Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius attenuatus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius avernicolus Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius barri Muchmore, 1996	Barr's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius binoculatus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius chamberlini Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius charon Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius diabolus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Tyrannochthonius erebicus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius felix Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius fiskei Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Tyrannochthonius gnomus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius halopotamus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL, TN	○	○	○
Tyrannochthonius hypogeus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	KY	○	○	○
Tyrannochthonius infernalis Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius jonesi Chamberlin, 1995	Jones' Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius muchmoreorum Cokendolpher, 2009		Pseudoscorpiones	Troglobiont	GNR	TX	○	○	○
Tyrannochthonius nergal Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius orpheus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Tyrannochthonius osiris Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius parvus Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Tyrannochthonius pecki Muchmore, 1996	Peck's Cave Peudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius pholeter Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius pluto Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1G2	AL	○	○	○
Tyrannochthonius pupukeanus Muchmore, 1983		Pseudoscorpiones	Troglobiont	G1	HI	○	1	○
Tyrannochthonius satan Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius sheltae Muchmore, 1996	Shelta Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius skeletonis Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius steevesi Muchmore, 1996	Steeves' Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	TN	○	○	○
Tyrannochthonius stonei Muchmore, 1989		Pseudoscorpiones	Troglobiont		HI	○	1	○
Tyrannochthonius stygius Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius tartarus Muchmore, 1996		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius tenuis Chamberlin, 1995		Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius torodei Muchmore, 1996	Torode's Cave Pseudoscorpion	Pseudoscorpiones	Troglobiont	G1	AL	○	○	○
Tyrannochthonius troglodytes Muchmore, 1986		Pseudoscorpiones	Troglobiont	G1G2	TX	○	○	○
Ufocandona hannaleeae Kulkoyluoglu et al., 2017		Podocopida	Stygobiont		TX	○	○	○
Ula elegans Osten Sacken, 1869		Diptera	Trogloxene	GNR		○	○	○
Uloborus glomosus (Walckenaer, 1841)	Featherlegged Orbweaver	Araneae	Trogloxene	GNR	AL, NM	○	○	○
Ulomorpha pilosella (Osten Sacken, 1860)		Diptera	Trogloxene	GNR	KY	○	○	○
Uncinocythere ambophora (Walton & Hobbs, 1959)		Podocopida	Stygobiont	G2G3	FL	○	10	○
Uncinocythere equicurva (Hoff, 1944)		Podocopida	Stygophile			○	○	○
Uncinocythere pholetera (Hart & Hobbs, 1961)		Podocopida	Stygobiont	G1G2	MO	○	14	○
Uncinocythere simondsi (Hobbs & Walton, 1960)		Podocopida	Stygophile		KY	○	○	○
Uncinocythere warreni Hobbs & Walton, 1968		Podocopida	Stygobiont	G1	GA, AR, FL	○	6	○
Uncinocythere xania (Hart & Hobbs, 1961)		Podocopida	Stygobiont	G3	IN, MO, AR, GA	○	21	○
Uncinocythere zancla Hobbs & Walton, 1963		Podocopida	Stygophile		KY	○	○	○
Uniomerus carolinianus (Bosc, 1801)	Eastern Pondhorn	Unionoida	Accidental	G4	FL	○	○	○
Uroblaniulus canadensis (Newport, 1844)	Sickle Tailed Millipede	Julida	Accidental	G5		○	○	○
Uroctonus grahami Gertsch & Soleglad, 1972		Scorpiones	Troglobiont	G1G2	CA	○	○	1
Uroseius infirmus (Berlese, 1887)		Mesostigmata	Trogloxene		TN	○	○	○
Ursus americanus Pallas, 1780	American Black Bear	Carnivora	Trogloxene	G5 LC	AR, IN, KY, TN	○	○	○
Ursus arctos Linnaeus, 1758	Brown Bear	Carnivora	Trogloxene	G4 LC		○	○	○
Usofila gracilis Keyserling, 1891		Araneae	Troglobiont	G1G2	CA	○	○	○
Uvarus texanus (Sharp, 1882)		Coleoptera	Stygoxene		TX	○	○	○
Vachonium boneti Chamberlin, 1947		Pseudoscorpiones	Troglophile			○	○	○
Vachonium maya Chamberlin, 1947		Pseudoscorpiones	Troglophile			○	○	○
Vaejovis carolinianus (Beauvois, 1805)	Southern Unstriped Scorpion	Scorpiones	Accidental	G5	AL	○	○	○
Vallonia pulchella (O. F. Müller, 1774)	Beautiful Grass Snail	Stylommatophora	Trogloxene	G5	KY	○	○	○
Varacosa avara (Keyserling, 1877)	Spurred Secretive Wolf Spider	Araneae	Accidental	GNR	IL	○	○	○
Veigaia bakeri Farrier, 1957	Baker's Cave Mite	Mesostigmata	Troglobiont	G1	IN, NM	○	○	○
Veigaia kochi (Trägårdh, 1901)		Mesostigmata	Troglophile	GNR		○	○	○
Veigaia wyandottensis (Packard, 1888)	Wyandotte Cave Mite	Mesostigmata	Troglobiont	G1	IN	○	○	○
Ventridens demissus (A. Binney, 1843)	Perforate Dome	Stylommatophora	Trogloxene	G5	FL, TN	○	○	○
Ventridens gularis (Say, 1821)	Throaty Dome	Stylommatophora	Troglophile	G5	AL, GA, KY, TN	○	○	○
Ventridens intertextus (A. Binney, 1840)	Pyramid Dome	Stylommatophora	Trogloxene	G5	IL	○	○	○
Ventridens ligera (Say, 1821)	Globose Dome	Stylommatophora	Trogloxene	G5	GA, KY	○	○	○
Vetericaris chaceorum Kensley & Williams, 1986		Decapoda	Stygobiont	G1 ESA	HI	○	4	○
Virginia valeriae Baird & Girard, 1853	Smooth Earth Snake	Squamata	Accidental	G5 LC	AR	○	○	○
Vitronura giselae Cassagnau & Palacios-Vargas, 1983		Poduromorpha	Trogloxene		IL, TN	○	○	○
Vitropyrgus lillianae Perez & Castañeda, 2023		Littorinimorpha	Stygobiont		TX	○	○	6
Vorticella abreviata Keiser, 1921		Sessilida	Stygoxene		AL	○	○	○
Vorticella microstoma Ehrenberg, 1830		Sessilida	Stygoxene		KY	○	○	○
Vulcanochthonius aa Muchmore, 2000		Pseudoscorpiones	Troglobiont		HI	○	1	○
Vulcanochthonius howarthi (Muchmore, 1979)		Pseudoscorpiones	Troglobiont	G1G2	HI	○	1	○
Vulcanochthonius pohakuloae Muchmore, 2000		Pseudoscorpiones	Troglobiont		HI	○	1	○
Wadotes calcaratus (Keyserling, 1887)		Araneae	Trogloxene	G5	GA, TN	○	○	○
Wadotes saturnus Bennett, 1987		Araneae	Trogloxene		GA	○	○	○
Watobius anderisus Chamberlin, 1911		Lithobiomorpha	Accidental		AL	○	○	○
Wormaldia moesta (Banks, 1914)		Trichoptera	Stygoxene	G4	KY	○	○	○
Wulfila albens (Hentz, 1847)		Araneae	Accidental		AL	○	○	○
Xenolimosina sicula Marshall, 1985		Diptera	Trogloxene	GNR	CO	○	○	○
Xenotrechus condei Barr & Krekeler, 1967		Coleoptera	Troglobiont	G1G2	MO	○	○	○
Xenotrechus denticollis Barr & Krekeler, 1967		Coleoptera	Troglobiont	G1G2	MO	○	2	9
Xenylla welchi Folsom, JW, 1916	Springtail	Poduromorpha	Trogloxene	GNR	IL	○	○	○
Xironodrilus formosus Ellis, 1918		Branchiobdellida	Stygophile		TN	○	○	○
Xironogiton instabilius (Moore, 1894)		Branchiobdellida	Stygophile		VA, WV	○	○	○
Xolotrema denotatum (A. Férussac, 1823)	Velvet Wedge	Stylommatophora	Trogloxene	G4	IL	○	○	○
Xolotrema fosteri (F. C. Baker, 1932)	Bladetooth Wedge	Stylommatophora	Trogloxene	G5	IL	○	○	○
Xolotrema obstrictum (Say, 1821)	Sharp Wedge	Stylommatophora	Trogloxene	G4	TN	○	○	○
Yunohamella lyrica (Walckenaer, 1841)	Lyric Cobweaver	Araneae	Trogloxene	GNR	AL, IN	○	○	○
Zealeuctra narfi Ricker & Ross, 1969	Northern Needlefly	Plecoptera	Stygoxene	G4	IL	○	○	○
Zonitoides arboreus (Say, 1817)	Bark Snail	Stylommatophora	Troglophile		AL, FL, GA, IL, KY, MO, TN, VA	○	○	○
Zonitoides limatulus (A. Binney, 1840)	Dull Gloss	Stylommatophora	Trogloxene	G4	KY	○	○	○
Zonitoides nitidus (O. F. Müller, 1774)	Black Gloss	Stylommatophora	Trogloxene		IL	○	○	○
Zosteractis interminata Loomis, 1943	Zosteractis Cave Millipede	Julida	Troglobiont	G1	IL, MO	○	2	○
Zygonopus krekeleri Causey, 1960	West Virginia Blind Cave Millipede	Chordeumatida	Troglobiont	G4	WV	○	○	○
Zygonopus packardi Causey, 1960	Packard's Blind Cave Millipede	Chordeumatida	Troglobiont	G4	VA, WV	○	○	○
Zygonopus weyeriensis Causey, 1960	Grand Caverns Blind Cave Millipede	Chordeumatida	Troglobiont	G3G4	VA, WV	○	○	○
Zygonopus whitei Causey, 1960	Luray Caverns Blind Cave Millipede	Chordeumatida	Troglobiont	G3G4	VA, WV	○	○	○

Browse species

Explore

Resources

About this site