Peck's Cave Amphipod
Stygobromus pecki (Holsinger, 1967)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Stygobromus |
| Species | Stygobromus pecki (Holsinger, 1967) |
Synonyms
- Stygonectes pecki Holsinger, 1967 (prior combination, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from two counties in Texas in the Edwards Plateau and Balcones karst region.
Continent
North America
Country
United States
States and provinces
Texas
Counties
- Texas
- Bandera, Comal
Karst regions
Edwards Plateau and Balcones
Genetics
Molecular resources
| Marker | Molecule | Sequences | Length | Exemplar |
|---|---|---|---|---|
| COI | mitochondrial | 32 | 455-501 bp | JQ358866.1 |
| ITS | nuclear | 1 | 212-212 bp | JQ363743.1 |
33 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.
Download all 33 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.
Specimens
Type material
- Holotype
- USNM 141753 · National Museum of Natural History, Smithsonian Institution
- Paratype
- USNM 141754 · National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 29 |
| University of Texas, Biodiversity Center, Entomology Collection | 6 |
| Biodiversity Research and Teaching Collections, Texas A&M University | 1 |
36 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 36 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
IUCN Red List
EN Endangered B1+2c
Assessed in 1996.
NatureServe
G1G2 Critically Imperiled to Imperiled
Global rank last reviewed 12 May 2009.
Subnational ranks
- Texas
- 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
Endangered under the U.S. Endangered Species Act, listed in 1997.
Federal: Endangered
Other resources
References
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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