Stygian Cave Isopod
Caecidotea stygia Packard, 1871
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Isopoda |
| Family | Asellidae |
| Genus | Caecidotea |
| Species | Caecidotea stygia Packard, 1871 |
Synonyms
Conasellus stygius (Packard, 1871)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Mammoth Cave, Edmonson Co. KY
Range
Known from six states across two karst regions.
Continent
North America
Country
United States
States and provinces
Illinois, Indiana, Kentucky, Missouri, Ohio, Tennessee
Counties
County-level records have not been compiled for this taxon. Distribution is recorded at state and karst-region level.
Karst regions
Interior Low Plateau, Ozarks
Genetics
Molecular resources
| Marker | Molecule | Sequences | Length | Exemplar |
|---|---|---|---|---|
| 28S | nuclear | 62 | 385-752 bp | PV033520.1 |
| COI | mitochondrial | 30 | 460-960 bp | PV022138.1 |
| other | unknown | 19 | 608-733 bp | OR341890.1 |
111 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.
Download all 111 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.
Specimens
Type material
- Syntype
- CRU-6786 · Museum of Comparative Zoology, Harvard
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 176 |
| Museum of Comparative Zoology, Harvard | 6 |
| Field Museum of Natural History | 5 |
| American Museum of Natural History | 1 |
| Auburn University Museum of Natural History | 1 |
| Natural History Museum, London | 1 |
190 cataloged lots in 6 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 190 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G5 Secure
Global rank last reviewed 21 August 2002.
Subnational ranks
- Illinois
- SNR Unranked
- Indiana
- S5 Secure
- Kentucky
- SNR Unranked
- Missouri
- S1 Critically Imperiled
- Ohio
- SNR Unranked
- Tennessee
- S3S4 Vulnerable to Apparently Secure
State and federal status
Not listed under the U.S. Endangered Species Act
Other resources
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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