Franz's Cave Isopod
Caecidotea franzi (Holsinger & Steeves, 1971)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Isopoda |
| Family | Asellidae |
| Genus | Caecidotea |
| Species | Caecidotea franzi (Holsinger & Steeves, 1971) |
Synonyms
- Asellus franzi Holsinger & Steeves, 1971 (prior combination, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Millers Cave, Centre Co. PA
Range
Known from five counties across four states across two karst regions.
Continent
North America
Country
United States
States and provinces
Kentucky, Maryland, Pennsylvania, West Virginia
Counties
- Kentucky
- Harlan
- Maryland
- Allegany, Garrett
- Pennsylvania
- Centre
- West Virginia
- Mineral
Karst regions
Appalachians, Other
Specimens
Type material
- Holotype
- USNM 135261 · National Museum of Natural History, Smithsonian Institution
- Allotype
- USNM 135262 · National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 15 |
15 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 15 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G2G4 Imperiled to Apparently Secure
Global rank last reviewed 21 August 2002.
Subnational ranks
- Kentucky
- SNR Unranked
- Maryland
- S1 Critically Imperiled
- Pennsylvania
- S1 Critically Imperiled
- West Virginia
- S1 Critically Imperiled
Ranks looked up 2 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
- Pollution -Sewage or Urban Wastewater
- Pollution - Commercial/Industrial
- Pollution - Agricultural & Forestry
Other resources
This account was last revised 28 August 2026. Conservation ranks were looked up 2 August 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.