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

Dougherty Plain Cave Crayfish
Cambarus cryptodytes Hobbs, 1941

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Decapoda
Family Cambaridae
Genus Cambarus
Species Cambarus cryptodytes Hobbs, 1941

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic
Maximum length
53 mm

Distribution

Type locality

A well, 2 mi S of Graceville, Jackson Co. FL

Range

Known from 11 counties across two states in the Florida Lime Sinks karst region.

Continent

North America

Country

United States

States and provinces

Florida, Georgia

Counties

Florida
Calhoun, Jackson, Washington
Georgia
Baker, Calhoun, Decatur, Dougherty, Early, Miller, Mitchell, Seminole

Karst regions

Florida Lime Sinks

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
COI mitochondrial 2 648-648 bp DQ113444.1
12S mitochondrial 1 329-329 bp JX514607.1
16S mitochondrial 1 437-437 bp JX514534.1
28S nuclear 1 784-784 bp JX514672.1
H3 nuclear 1 327-327 bp KX238309.1

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

Download all 6 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
USNM 79339 · National Museum of Natural History, Smithsonian Institution
Allotype
USNM 79340 · National Museum of Natural History, Smithsonian Institution
Paratype
CRU-12220 · Museum of Comparative Zoology, Harvard
Paratype ×4
National Museum of Natural History, Smithsonian Institution

Collections holding material

InstitutionLots
National Museum of Natural History, Smithsonian Institution 22
Florida Museum of Natural History 13
North Carolina Museum of Natural Sciences 10
Museum of Comparative Zoology, Harvard 2

47 cataloged lots in 4 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 47 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

IUCN Red List

LC Least Concern na

EXEWCRENVUNTLC▲

Assessed in 2010.

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 18 January 2018.

Subnational ranks

Florida
S2 Imperiled
Georgia
S2 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.

Threats

  • Recreational/Commerical Cave Activities
  • Dams & Water Extraction
  • Pollution -Sewage or Urban Wastewater
  • Pollution - Agricultural & Forestry

Other resources

Catalogue of Life
7RTXM
GBIF
2227320
ITIS
97358
iNaturalist
96550
NCBI Taxonomy
341240

References

  • Breinholt, J.W., Porter, M.L. & Crandall, K.A. 2012. Testing phylogenetic hypotheses of the subgenera of the freshwater crayfish genus Cambarus (Decapoda: Cambaridae). PLoS One 7(9): e46105. doi:10.1371/journal.pone.0046105
  • Brock, K.A. & Bortone, S.A. 1977. Cave dwelling fishes in panhandle Florida. Florida Scientist 40: 406–407. https://www.jstor.org/stable/24320078. details
  • Caine, E.A. 1974b. Adaptations to species-specific habitats by epigean and troglobitic crayfishes (Decapoda: Astacidae). Florida State University, Tallahassee, Florida, USA. 85 pp.
  • Caine, E.A. 1978. Comparative ecology of epigean and hypogean crayfish (Crustacea: Cambaridae) from northwestern Florida. The American Midland Naturalist 99: 315–329. doi:10.2307/2424809
  • Cannizzaro, A.G., Balding, D., Stine, M. & Sawicki, T.R. 2019b. A new syntopic species of Stygobromus Cope, 1872 (Amphipoda: Crangonyctidae) from groundwaters in Georgia and Florida, USA, with notes on S. floridanus Holsinger & Sawicki, 2016. Journal of Crustacean Biology 39: 407–418. doi:10.1093/jcbiol/ruz034
  • Culver, D.C. & Hobbs, III, H.H. 2002. Patterns of species richness in the Florida stygobitic fauna. Hydrogeology and Biology of Post-Palaeozoic Carbonate Aquifers. Proceedings of the Symposium Karst Frontiers: Florida and Related Environments: 60–63. https://karstwaters.org/wp-content/uploads/2023/06/SP7-Florida-PostPaleozoic-carbonate-aquifers.pdf. details
  • Franz, R. 1992t. Apalachicola Cave Crayfish Cambarus (Jugicambarus) cryptodytes Hobbs. In: Deyrup, M. & Franz, R. (eds), Rare and Endangered Biota of Florida. Volume IV. Invertebrates, pp. 216–218. University Press of Florida, Gainesville, Florida, USA.
  • Franz, R., Bauer, J. & Morris, T. 1994. Review of biologically significant caves and their faunas in Florida and south Georgia. Brimleyana 20: 1–109. https://www.biodiversitylibrary.org/part/229726. details
  • Franz, R. & Franz, S.E. 1990. A review of the Florida crayfish fauna, with comments on nomenclature, distribution, and conservation. Florida Scientist 53: 286–296. https://www.jstor.org/stable/24320400. details
  • Franz, R. & Lee, D.S. 1982. Distribution and evolution of Florida's troglobitic crayfishes. Bulletin of the Florida State Museum 28: 53–78.
  • Hale, J.A. & Streever, W.J. 1994. Cave fauna distribution within fully-flooded cave systems in Florida. Journal of Freshwater Ecology 9: 171–174. doi:10.1080/02705060.1994.9664883
  • Hobbs, H.H., Jr. & Barr, T.C., Jr. 1960. The origins and affinities of the troglobitic crayfishes of North America (Decapoda, Astacidae). I. The genus Cambarus. The American Midland Naturalist 64: 12–33. doi:10.2307/2422890
  • Hobbs & H.H. Jr. 1941. Three new Florida crayfishes of the subgenus Cambarus (Decapoda, Astacidae). The American Midland Naturalist 26: 110–121. doi:10.2307/2420759
  • Hobbs & H.H. Jr. 1942a. A generic revision of the crayfishes of the subfamily Cambarinae (Decapoda, Astacidae) with the description of a new genus and species. The American Midland Naturalist 28: 334–357. doi:10.2307/2420820
  • Hobbs & H.H. Jr. 1942b. The Crayfishes of Florida. University of Florida Biological Science Series Volume 3, Issue 2, Gainesville, Florida, USA. 179 pp.
  • Hobbs & H.H. Jr. 1989. An illustrated checklist of the American crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Contributions to Zoology 480: 1–236. doi:10.5479/si.00810282.480
  • Hobbs, H.H. Jr., Hobbs, H.H. III & Daniel, M.A. 1977. A review of the troglobitic decapod crustaceans of the Americas. Smithsonian Contributions to Zoology 244: 1–183.
  • Hobbs, H.H. Jr. & Walton, M. 1968. New entocytherid ostracods from the southern United States. Proceedings of the Academy of Natural Sciences of Philadelphia 120: 237–252. https://www.jstor.org/stable/4064636. details
  • Holt, P.C. 1973. Branchiobdellids (Annelida: Clitellata) from some eastern North American caves, with descriptions of new species of the genus Cambarincola. International Journal of Speleology 5: 219–256.
  • Lewis, J.J. & Sawicki, T.R. 2016. Mexistenasellus floridensis sp. n., the first stenasellid isopod discovered from the Floridan aquifer (Crustacea, Isopoda, Asellota). Subterranean Biology 17: 121–132. doi:10.3897/subtbiol.17.7703
  • Mays, J. 2018. Inventory of Florida's cave fauna with a focus on terrestrial invertebrate species. Progress Report for Florida Park Service. Florida Fish & Wildlife Conservation Commission, Tallahassee, Florida, USA. 9 pp.
  • McAllister, C.T., Bursey, C.R., Fenolio, D. & Niemiller, M.L. 2013. Bothriocephalus sp. (Cestoidea: Bothriocephalidae) from the Georgia Blind Salamander, Eurycea wallacei (Caudata: Plethodontidae), in Georgia, U.S.A.: first definitive report of a parasite from this host. Comparative Parasitology 80: 308–311. doi:10.1654/4615.1
  • Moler, P., Cook, D. & Penton, M. 2017. Status assessments of the Georgia Blind Salamander and Dougherty Plain Cave Crayfish in Florida. Florida Fish and Wildlife Conservation Commission, Tallahassee, Florida, USA. 18 pp.
  • Morris, T.L. 2006. A biological inventory of aquifer caves in Florida with special emphasis on troglobitic crustaceans and salamanders. Final report S0057 to Florida Department of Environmental Regulation. Karst Environmental Services, Inc., High Springs, Florida, USA. 44 pp.
  • Nicholas, G. 1960. Checklist of macroscopic troglobitic organisms of the United States. The American Midland Naturalist 64: 123–160. doi:10.2307/2422897
  • Niemiller, M.L., Fenolio, D.B. & Zigler, K.S. 2012b. The obligate cave fauna of Georgia. Bulletin of the Georgia Speleological Survey 2012: 6–12.
  • Opsahl, S.P. & Chanton, J.P. 2006. Isotopic evidence for methan-based chemosynthesis in the Upper Floridan Aquifer food web. Oecologia 150: 89–96. doi:10.1007/s00442-006-0492-2
  • Poucher, S. 2022. Wildlife of Florida's Springs. An Illustrated Guide to over 150 Species. Pineapple Press, Palm Beach, Florida, USA. 196 pp. ISBN 9780000000000.
  • Purvis, K.M. & Opsahl, S.P. 2005. A novel technique for invertebrate trapping in groundwater wells identifies new populations of the troglobitic crayfish, Cambarus cryptodytes, in southwest Georgia, USA. Journal of Freshwater Ecology 20: 361–365. doi:10.1080/02705060.2005.9664976
  • Pylka, J.M. & Warren, R.D. 1958. A population of Haideotriton in Florida. Copeia 1958: 334–336. doi:10.2307/1439974
  • Reeves, W.K., Jensen, J.B. & Ozier, J.C. 2000. New faunal and fungal records from caves in Georgia, USA. Journal of Cave and Karst Studies 62: 169–179. https://caves.org/wp-content/uploads/Publications/JCKS/v62/v62n3-Reeves.pdf. details
  • Skelton, C.E. 2019b. Cambarus cryptodytes Hobbs, 1941 Dougherty Plains Cave Crayfish. Georgia Biodiversity Portal, Georgia Department of Natural Resources, Wildlife Resources Division. https://georgiabiodiversity.org/portal/profile?group=animals&es_id=17728. details
  • Stern, D.B., Breinholt, J., Pedraza-Lara, C., Lopez-Mejia, M., Owen, C.L., Bracken-Grissom, H., Fetzner, J.W., Jr. & Crandall, K.A. 2017. Phylogenetic evidence from freshwater crayfishes that cave adaptation is not an evolutionary dead-end. Evolution 71(10): 2522–2532. doi:10.1111/evo.13326
  • Tennessee Cave Survey. 2005. Biological records from Tennessee, Alabama, and Georgia caves. Tennessee Cave Survey.
  • U.S. Fish & Wildlife Service. 2022. Species status assessment report for the Georgia Blind Salamander (Eurycea wallacei) version 1.0. U.S. Fish & Wildlife Service, South Atlantic-Gulf Region, Atlanta, Georgia, USA. 47 pp.
  • Walsh, S.J. 2001. Freshwater macrofauna of Florida karst habitats. Proceedings of the 2001 U.S. Geological Survey Karst Interest Group, USGS Water-Resources Investigations Report 01–4011: 78–88. https://digitalcommons.usf.edu/kip_talks/101/. details
  • Warren, R.D. 1961. The obligate cavernicoles of Florida. Special Papers of the Florida Speleological Society 1: 1–10.
  • Zigler, K.S., Niemiller, M.L., Stephen, C.D.R., Ayala, B.N., Milne, M.A., Gladstone, N.S., Engel, A.S., Jensen, J.B., Camp, C.D., Ozier, J.C. & Cressler, A. 2020. Biodiversity from caves and other subterranean habitats of Georgia, USA. Journal of Cave and Karst Studies 82: 125–167. doi:10.4311/2019LSC0125

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

How to cite this account

Cambarus cryptodytes Hobbs, 1941. Cave Biology Data Portal, account SP-1159. https://cavebiology.org/species/cambarus-cryptodytes/ (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

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