Coahuila Groundwater Isopod
Mexistenasellus coahuila Cole & Minckley, 1972
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Isopoda |
| Family | Stenasellidae |
| Genus | Mexistenasellus |
| Species | Mexistenasellus coahuila Cole & Minckley, 1972 |
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from six counties across two states in the Edwards Plateau and Balcones karst region.
Continent
North America
Countries
Mexico, United States
States and provinces
Mexico, Texas
Counties
- Mexico
- Coahuila, Cuatro Ciénegas
- Texas
- Bexar, Medina, Real, Uvalde
Karst regions
Edwards Plateau and Balcones
Genetics
Molecular resources
| Marker | Molecule | Sequences | Length | Exemplar |
|---|---|---|---|---|
| 16S | mitochondrial | 1 | 475-475 bp | AY570149.1 |
| COI | mitochondrial | 1 | 658-658 bp | AY566478.1 |
2 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.
Download all 2 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.
Specimens
Type material
- Holotype
- USNM 123807 · National Museum of Natural History, Smithsonian Institution
- Paratype ×4
- National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| Edwards Aquifer Research and Data Center, Texas State University | 25 |
| National Museum of Natural History, Smithsonian Institution | 18 |
| University of Texas, Biodiversity Center, Entomology Collection | 1 |
44 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 44 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
IUCN Red List
EN Endangered A1c
Assessed in 1996.
NatureServe
G2G3 Imperiled to Vulnerable
Global rank last reviewed 21 August 2002.
Subnational ranks
- Texas
- S3 Vulnerable
Ranks looked up 3 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 3 August 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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