Norton's Cave Isopod
Caecidotea nortoni (Steeves, 1966)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Isopoda |
| Family | Asellidae |
| Genus | Caecidotea |
| Species | Caecidotea nortoni (Steeves, 1966) |
Synonyms
- Asellus nortoni Steeves, 1966 (prior combination, CoL)
- Conasellus nortoni (Steeves, 1966) (prior combination, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Cedar Creek Cave, Green Co. TN
Range
Known from four counties in Tennessee in the Appalachians karst region.
Continent
North America
Country
United States
States and provinces
Tennessee
Counties
- Tennessee
- Carter, Greene, Johnson, Washington
Karst regions
Appalachians
Specimens
Type material
- Holotype
- USNM 171234 · National Museum of Natural History, Smithsonian Institution
- Paratype
- USNM 171235 · National Museum of Natural History, Smithsonian Institution
- Type
- USNM 239031 · National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 6 |
6 cataloged lots in 1 collection. 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 6 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G2G3 Imperiled to Vulnerable
Global rank last reviewed 21 August 2002.
Subnational ranks
- Tennessee
- S1S2 Critically Imperiled to 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
References
- Niemiller, M.L. & Zigler, K.S. 2013. Patterns of cave biodiversity and endemism in the Appalachians and Interior Plateau of Tennessee, USA. PLOS One 8: e64177. doi:10.1371/journal.pone.0064177
- 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
- Steeves, H.R. & Holsinger, J.R. 1968. Biology of three new species of troglobitic asellids from Tennessee. The American Midland Naturalist 80: 75–83. doi:10.2307/2423604
This account was last revised 28 August 2026. Conservation ranks were looked up 23 August 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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