Caecidotea nickajackensis Cope & Packard, 1881

Nickajack Cave isopod



Taxonomy & Nomenclature



Conservation Status

Rediscovered (1967 or prior-?)

IUCN RedList status: Vulnerable



Nickajack Cave, Marion County, Tennessee, USA


Biology & Ecology










Original scientific description:

Cope, Edward Drinker and Packard Jnr., Alpheus Spring. (1881). The fauna of Nickajack Cave. American Naturalist 11: 877-882.


Other references:

Coleman, William T. and Zigler, Kirk S. (2015). The Rediscovery of Caecidotea nickajackensis in Tennessee and Alabama. Speleobiology Notes 7: 10-13.

Hay, William Perry. (1902). Observations on the crustacean fauna of Nickajack Cave, Tennessee and vicinity. Proceedings of the United States National Museum 25: 417-439. [an erroneous report of this species from Metcalf, Georgia]

Inland Water Crustacean Specialist Group. (1996). Caecidotea nickajackensis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. ( Downloaded on 17 September 2011.

Lewis, Julian J. (2005). Bioinventory of Caves of the Cumberland Escarpment Area of Tennessee. Final Report to Tennessee Wildlife Resources Agency & The Nature Conservancy of Tennessee. Lewis & Associates LLC, 158 pp.

Lewis, Julian J. (2009). On the identity of Caecidotea nickajackensis (Crustacea: Isopoda: Asellidae). Proceedings of the Biological Society of Washington 122(2): 215-224.

NatureServe. (2011). NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available (Accessed: September 17, 2011).


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