Barton cavesnail
Stygopyrgus bartonensis Hershler & Longley, 1986
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Mollusca |
| Class | Gastropoda |
| Order | Littorinimorpha |
| Family | Hydrobiidae |
| Genus | Stygopyrgus |
| Species | Stygopyrgus bartonensis Hershler & Longley, 1986 |
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Barton Springs, Travis Co., Austin, TX
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
- Bell, Comal, Mason, Travis, Williamson
Karst regions
Edwards Plateau and Balcones
Genetics
Molecular resources
| Marker | Molecule | Sequences | Length | Exemplar |
|---|---|---|---|---|
| 28S | nuclear | 8 | 633-690 bp | OR391742.1 |
| COI | mitochondrial | 7 | 623-657 bp | OR372131.1 |
15 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.
Download all 15 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.
Specimens
Type material
- Holotype
- MO359093 · Academy of Natural Sciences of Drexel University
- Paratype
- MO507729 · Academy of Natural Sciences of Drexel University
Collections holding material
| Institution | Lots |
|---|---|
| Edwards Aquifer Research and Data Center, Texas State University | 24 |
| National Museum of Natural History, Smithsonian Institution | 4 |
| Academy of Natural Sciences of Drexel University | 2 |
30 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 30 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G1 Critically Imperiled
Global rank last reviewed 14 September 1999.
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
Not listed under the U.S. Endangered Species Act.
Other resources
References
- Gibson, R., Hutchins, B.T., Krejca, J.K., Diaz, P.H. & Sprouse, P.S. 2021. Stygobromus bakeri, a new species of groundwater amphipod (Amphipoda, Crangonyctidae) associated with the Trinity and Edwards aquifers of central Texas, USA. Subterranean Biology 38: 19–45. doi:10.3897/subtbiol.38.61787
- Gladstone, N.S., Niemiller, M.L., Hutchins, B., Schwartz, B., Czaja, A., Slay, M.E. & Whelan, N.V. 2022. Subterranean freshwater gastropod biodiversity and conservation in the United States and Mexico. Conservation Biology 36: e13722. doi:10.1111/cobi.13722
- Hershler, R. & Longley, G. 1986. Phreatic hydrobiids (Gastropoda: Prosobranchia) from the Edwards (Balcones Fault Zone) Aquifer region, south-central Texas. Malacologia 27: 127–172. https://repository.si.edu/bitstream/handle/10088/11313/iz_HershlerLongley1986a.pdf?sequence=1&isAllowed=y. details
- Kabat, A.R. & Hershler, R. 1993. The prosobranch snail family Hydrobiidae (Gastropoda: Rissooidea): review of classification and supraspecific taxa. Smithsonian Contributions to Zoology 547: 1–94. https://repository.si.edu/bitstream/handle/10088/5560/SCtZ-0547-Lo_res.pdf. details
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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