Cumberland Gap Cave Amphipod
Bactrurus angulus Koenemann & Holsinger, 2001
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Bactrurus |
| Species | Bactrurus angulus Koenemann & Holsinger, 2001 |
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Saur Kraut Cave, Claiborne Co. TN
Range
Known from two counties across two states in the Appalachians karst region.
Continent
North America
Country
United States
States and provinces
Tennessee, Virginia
Counties
- Tennessee
- Claiborne
- Virginia
- Lee
Karst regions
Appalachians
Specimens
Type material
- Holotype
- USNM 296421 · National Museum of Natural History, Smithsonian Institution
- Paratype
- ZMA.CRUS.A.204946 · Naturalis Biodiversity Center
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 3 |
| Naturalis Biodiversity Center | 1 |
4 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 4 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G1 Critically Imperiled
Global rank last reviewed 24 September 2002.
Subnational ranks
- Tennessee
- S1 Critically Imperiled
- Virginia
- 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
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
- Taylor, S.J. & Niemiller, M.L. 2016. Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1–29. doi:10.3897/subtbiol.17.7298
- Trumbore, L.E., Reynolds, R.J., Thomas, S.C., Orndorff, W., Cramphorn, B., Gladstone, N.S., Harden, C.W., Lewis, J.J., Milne, M.A., Ober, K.A., Shear, W.A., Stephen, C.D.R. & Zigler, K.S. 2024. Cave biodiversity of Cumberland Gap National Historical Park. Journal of Cave and Karst Studies 86: 13–24. doi:10.4311/2022LSC0116
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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