Stygian cavesnail
Amnicola stygius Hubricht, 1971
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Mollusca |
| Class | Gastropoda |
| Order | Littorinimorpha |
| Family | Hydrobiidae |
| Genus | Amnicola |
| Species | Amnicola stygius Hubricht, 1971 |
Synonyms
- Amnicola stygia Hubricht, 1971 (subjective synonym, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
- Maximum length
- 2 (diameter) mm
Distribution
Type locality
Stream in Tom Moore Cave, 3 mi N of Perryville, Perry Co., MO
Range
Known from one county in Missouri in the Ozarks karst region.
Continent
North America
Country
United States
States and provinces
Missouri
Counties
- Missouri
- Perry
Karst regions
Ozarks
Specimens
Type material
- Holotype
- 164173 · Field Museum of Natural History
- Paratype
- MO332279 · Academy of Natural Sciences of Drexel University
- Paratype ×2
- Field Museum of Natural History
Collections holding material
| Institution | Lots |
|---|---|
| Field Museum of Natural History | 5 |
| Academy of Natural Sciences of Drexel University | 1 |
6 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 6 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
IUCN Red List
VU Vulnerable D2
Assessed in 2011.
NatureServe
G1 Critically Imperiled
Global rank last reviewed 10 March 2008.
Subnational ranks
- Missouri
- 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
- Gladstone, N.S., Niemiller, M.L., Hutchins, B., Schwartz, B., Czaja, A., Slay, M.E. & Whelan, N.V. 2022. Subterranean freshwater gastropod biodiversity and conservation in the United States and Mexico. Conservation Biology 36: e13722. doi:10.1111/cobi.13722
- 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.
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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