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Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaArthropodaCrustaceaMalacostracaIsopodaAsellidaeCaecidotea

Caecidotea antricola Creaser, 1931

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Isopoda
Family Asellidae
Genus Caecidotea
Species Caecidotea antricola Creaser, 1931

Synonyms

  • Conasellus antricolus (Creaser, 1931) (subjective synonym, CoL)

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Ha-Ha Tonka Cave, Camden Co., MO

Range

Known from 41 counties across six states in the Ozarks karst region.

Continent

North America

Country

United States

States and provinces

Arkansas, Illinois, Kentucky, Missouri, Ohio, Oklahoma

Counties

Arkansas
Baxter, Benton, Independence, Izard, Marion, Newton, Searcy, Sharp, Stone
Illinois
Alexander
Kentucky
Todd
Missouri
Camden, Carter, Christian, Crawford, Crawford County and Franklin, Dade, Dent, Franklin, Green, Greene, Iron, Jefferson, LaClede, Lawrence, Oregon, Osage, Perry, Phelps, Pulaski, Shannon, St. Francois, St. Genevieve, St. Louis, Stone, Taney, Texas, Washington, Wright
Ohio
Highland
Oklahoma
Delaware

Karst regions

Ozarks

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
28S nuclear 4 401-716 bp OR505651.1
COI mitochondrial 4 579-894 bp OR291935.1
other unknown 2 654-676 bp OR341820.1

10 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.

Download all 10 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
USNM 98385 · National Museum of Natural History, Smithsonian Institution
Allotype
USNM 98386 · National Museum of Natural History, Smithsonian Institution
Paratype ×2
National Museum of Natural History, Smithsonian Institution

Collections holding material

InstitutionLots
National Museum of Natural History, Smithsonian Institution 183
Field Museum of Natural History 8

191 cataloged lots in 2 collections. Compiled from GBIF and not an exhaustive census: many collections are not yet digitised, and holdings are added continually. Search GBIF for specimen records.

Download all 191 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

NatureServe

G5 Secure

G1G2G3G4G5▲

Global rank last reviewed 8 February 2007.

Subnational ranks

Arkansas
SNR Unranked
Missouri
S4 Apparently Secure
Oklahoma
S1 Critically Imperiled

Ranks looked up 23 August 2026. Conservation status changes, and a rank here is as current as that date and no more.

State and federal status

Not listed under the U.S. Endangered Species Act.

Other resources

Catalogue of Life
P7P6
GBIF
2205871
ITIS
92721
iNaturalist
215622
NCBI Taxonomy
3059442

References

  • Dunivan, J.D., Tumlison, C.R. & McDaniel, V.R. 1982. Cave fauna of Arkansas: further records. Journal of the Arkansas Academy of Science 36: 87–88. https://scholarworks.uark.edu/jaas/vol36/iss1/28. details
  • Fenolio, D.B. 2014. 2014 Ozark aquatic subterranean wildlife surveys. Report to Oklahoma Biological Survey. San Antonio Zoo, San Antonio, Texas, USA. 21 pp.
  • Fenolio, D.B., Slay, M.E., Niemiller, M.L. & Richard, K. 2024. Biological inventories of caves in the Ozarks of northeastern Oklahoma: December 2024 field report. Report to Oklahoma Biological Survey. San Antonio Zoo, San Antonio, Texas, USA. 17 pp.
  • Fleming, L.E. 1972. The evolution of the eastern North American isopods of the genus Asellus (Crustacea: Asellidae). Part I. International Journal of Speleology 4: 221–256. https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=1605&context=ijs. details
  • Holsinger, J.R. & Lewis, J.J. 2025. Systematics of the subterranean amphipod genus Stygobromus (Crangonyctidae): Species of the Ozarks and adjacent regions. Journal of Cave and Karst Studies 87: 34–81. doi:10.4311/2024LSC0113
  • Kenk, R. 1977a. Freshwater tricads (Turbellaria) of North America, IX: The genus Sphalloplana. Smithsonian Contributions to Zoology 246: 1–38. https://repository.si.edu/bitstreams/d38e70a7-fb46–474c-9ea0-f202898980ba/download. details
  • Lewis, J.J. 1988. The systematics, zoogeography and life history of the troglobitic isopods of the Interior Plateaus of the eastern United States. University of Louisville, Louisville, Kentucky, USA. 281 pp.
  • Lewis, J.J. & Bowman, T.E. 1981. The subterranean asellids (Caecidotea) of Illinois (Crustacea: Isopoda: Asellidae). Smithsonian Contributions to Zoology 335: 1–66. doi:10.5479/si.00810282.335
  • McDaniel, V.R. & Smith, K.L. 1976. Cave fauna of Arkansas: selected invertebrate taxa. Journal of the Arkansas Academy of Science 30: 57–60. https://scholarworks.uark.edu/jaas/vol30/iss1/22. details
  • Nicholas, G. 1960. Checklist of macroscopic troglobitic organisms of the United States. The American Midland Naturalist 64: 123–160. doi:10.2307/2422897
  • Peck, S.B. & Lewis, J.J. 1978. Zoogeography and evolution of the subterranean invertebrate faunas of Illinois and southeastern Missouri. National Speleological Society Bulletin 40: 39–63.
  • Steeves, H.R. 1966. Evolutionary aspects of the troglobitic asellids of the United States: the hobbsi, stygius and cannulus groups. The American Midland Naturalist 75: 392–403. doi:10.2307/2423400

This account was last revised 28 August 2026. Conservation ranks were looked up 23 August 2026.

How to cite this account

Caecidotea antricola Creaser, 1931. Cave Biology Data Portal, account SP-1204. https://cavebiology.org/species/caecidotea-antricola/ (accessed 18 October 2026).
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Data sources and funding are listed in the Acknowledgments.

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Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

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