Devil's Sinkhole Amphipod
Stygobromus hadenoecus (Holsinger, 1966)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Stygobromus |
| Species | Stygobromus hadenoecus (Holsinger, 1966) |
Synonyms
- Stygonectes hadenoectus Holsinger, 1966 (subjective synonym, CoL)
- Stygonectes hadenoecus Holsinger, 1966 (prior combination, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from five counties in Texas in the Edwards Plateau and Balcones karst region.
Continent
North America
Country
United States
States and provinces
Texas
Counties
- Texas
- Edwards, Hays, Kinney, Uvalde, Val Verde
Karst regions
Edwards Plateau and Balcones
Specimens
Type material
- Holotype
- USNM 112359 · National Museum of Natural History, Smithsonian Institution
- Allotype
- USNM 112360 · National Museum of Natural History, Smithsonian Institution
- Paratype ×2
- National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| Edwards Aquifer Research and Data Center, Texas State University | 30 |
| National Museum of Natural History, Smithsonian Institution | 7 |
| University of Texas, Biodiversity Center, Entomology Collection | 1 |
38 cataloged lots in 3 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 38 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
IUCN Red List
VU Vulnerable D2
Assessed in 1996.
NatureServe
G1G2 Critically Imperiled to Imperiled
Global rank last reviewed 21 August 2002.
Subnational ranks
- Texas
- S2 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.
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.
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