Capital Area Groundwater Amphipod
Stygobromus sextarius Holsinger, 2009
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Stygobromus |
| Species | Stygobromus sextarius Holsinger, 2009 |
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from one county across three states in the Other karst region.
Continent
North America
Country
United States
States and provinces
District of Columbia, Maryland, Virginia
Counties
- Maryland
- Montgomery
Karst regions
Other
Specimens
Type material
- Holotype
- USNM 1109204 · National Museum of Natural History, Smithsonian Institution
- Paratype ×3
- National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 4 |
4 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 4 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G1 Critically Imperiled
Global rank last reviewed 28 April 2010.
Subnational ranks
- Maryland
- S1 Critically Imperiled
- Virginia
- S1 Critically Imperiled
- District of Columbia
- SNR Unranked
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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