Skip to content

Cave Biology Data Portal

Subterranean biodiversity of North America and around the globe

  • ExploreExpand
    • Species
    • Taxonomy
    • States and Provinces
    • Karst Regions
    • Caves You Can Visit
  • ResourcesExpand
    • Funding Opportunities
    • Employment Opportunities
    • Meeting and Events
    • Public Notices
    • News and Updates
  • ContributeExpand
    • Report an Observation
    • Add a Photograph or Image
    • Post an Event
    • Post an Opportunity
    • Add a Reference
    • Add a New Species
    • Report a Correction
  • AboutExpand
    • Acknowledgments
    • Data Sensitivity Policy
    • Citation and Licensing
  • ContactExpand
    • Data Requests
Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaArthropodaCrustaceaMalacostracaDecapodaPalaemonidaePalaemonetes

Balcones Cave Shrimp
Palaemonetes antrorum Benedict, 1896

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Decapoda
Family Palaemonidae
Genus Palaemonetes
Species Palaemonetes antrorum Benedict, 1896

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Artesian well, San Marcos, Hays Co., TX

Range

Known from Texas in the Edwards Plateau and Balcones karst region.

Continent

North America

Country

United States

States and provinces

Texas

Counties

County-level records have not been compiled for this taxon. Distribution is recorded at state and karst-region level.

Karst regions

Edwards Plateau and Balcones

Conservation and management

IUCN Red List

EN Endangered B1ab(iii)

EXEWCREN▲VUNTLC

Assessed in 2012.

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 2002.

Subnational ranks

Texas
S1 Critically Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Threats

  • Urbanization - Residential
  • Dams & Water Extraction
  • Pollution -Sewage or Urban Wastewater
  • Pollution - Agricultural & Forestry

Other resources

Catalogue of Life
9GR9D
GBIF
2225421
ITIS
96403
iNaturalist
1072096

How to cite this account

Palaemonetes antrorum Benedict, 1896. Cave Biology Data Portal, account SP-1194. https://cavebiology.org/species/palaemonetes-antrorum/ (accessed 3 September 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.

Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

Explore

  • Browse
  • Taxonomy

Resources

  • Funding
  • Employment
  • Contribute

About this site

  • About Us
  • Acknowledgments
  • Contact Us
  • Data Sensitivity Policy
  • Citation and Licensing
  • Accessibility Statement
  • Privacy Policy
  • Cookies Policy
  • Terms and Conditions
  • Explore
    • Species
    • Taxonomy
    • States and Provinces
    • Karst Regions
    • Caves You Can Visit
  • Resources
    • Funding Opportunities
    • Employment Opportunities
    • Meeting and Events
    • Public Notices
    • News and Updates
  • Contribute
    • Report an Observation
    • Add a Photograph or Image
    • Post an Event
    • Post an Opportunity
    • Add a Reference
    • Add a New Species
    • Report a Correction
  • About
    • Acknowledgments
    • Data Sensitivity Policy
    • Citation and Licensing
  • Contact
    • Data Requests