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
AnimaliaArthropodaCrustaceaMalacostracaAmphipodaGammaridaeGammarus

Gammarus minus Say, 1818

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Amphipoda
Family Gammaridae
Genus Gammarus
Species Gammarus minus Say, 1818

Synonyms

  • Gammarus propinquus Hay, 1902 (subjective synonym, CoL)
  • Gammarus purpurascens Hay, 1903 (subjective synonym, CoL)
  • Gammarus elki Reimer, 1969 (subjective synonym, CoL)

Description

Diagnostic characters

Ecological class
Stygophile
Realm
Aquatic

Distribution

Range

Known from 115 counties across 14 states in the Appalachians karst region.

Continent

North America

Country

United States

States and provinces

Alabama, Arkansas, Georgia, Illinois, Indiana, Kentucky, Maryland, Missouri, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, West Virginia

Counties

Alabama
Jackson, Lauderdale, Marshall
Arkansas
Benton, Independence, Izard, Lawrence, Marion, Newton, Searcy, Stone, Washington
Georgia
Walker
Illinois
Adams, Calhoun, Hardin, Jackson, Jersey, Johnson, Monroe, Pike, Pulaski, Randolph, St. Clair, Union
Indiana
Clark, Crawford, Greene, Harrison, Jefferson, Jennings, Lawrence, Monroe, Orange, Washington
Kentucky
Adair, Breckenridge, Caldwell, Carter, Edmonson, Estill, Hart, Jackson, Jefferson, Jessamine, Lee, Meade, Powell, Pulaski, Rockcastle, Trigg, Wayne, Woodford
Maryland
Carroll, Montgomery, Washington
Missouri
Boone, Crawford, Franklin, Phelps, Reynold, Shannon, St. Genevieve, St. Louis, Stone, Washington
Ohio
Adams
Oklahoma
Delaware, Mayes, Ottawa
Pennsylvania
Armstrong, Blair, Centre, Clinton, Dauphin, Fayette, Huntingdon, Lancaster, Lycoming, Mifflin
Tennessee
Cannon, Claiborne, DeKalb, Franklin, Grundy, Hancock, Marion, Overton, Perry, Shelby, Sullivan, White
Virginia
Alleghany, Bath, Bland, Clarke, Fairfax, Giles, Highland, Lee, Montgomery, Pulaski, Russell, Scott, Tazewell, Washington
West Virginia
Greenbrier, Jefferson, Mercer, Monroe, Pendleton, Pocahontas, Preston, Randolph, Tucker

Karst regions

Appalachians

Conservation and management

NatureServe

GNR Unranked

G1G2G3G4G5

Subnational ranks

Illinois
SNR Unranked
Oklahoma
SNR Unranked
Tennessee
SNR Unranked

State and federal status

Not listed under the U.S. Endangered Species Act

References

  • Hay, W.P. 1902. Observations on the crustacean fauna of Nickajack Cave, Tennessee, and vicinity. Proceedings of the United States National Museum 25: 417–439. doi:10.5479/si.00963801.25-1292.417
  • Hay, W.P. 1902. Observations on the crustacean fauna of the region about Mammoth Cave, Kentucky. Proceedings of the United States National Museum 25: 223–236. doi:10.5479/si.00963801.25-1285.223
  • Hobbs, III., H.H. 1994. Assessment of the ecological resources of the caves of Russell Cave National Monument, Jackson County, Alabama and of selected caves at the Lookout Mountain Unit of Chickamauga-Chattanooga National Military Park, Dade County, Georgia and Hamilton County, Tennessee. 200 pp.
  • Hubricht, L. 1943. Studies in the Nearctic freshwater amphipods, III. Notes on the freshwater Amphipoda of eastern United States, with descriptions of ten new species. The American Midland Naturalist 29: 683–712. doi:10.2307/2421157
  • Lewis, J.J. & Bowman, T.E. 1981. The subterranean asellids (Caecidotea) of Illinois (Crustacea: Isopoda: Asellidae). Smithsonian Contributions to Zoology 335: 1–66. doi:10.5479/si.00810282.335
  • Lewis, J.J., Moss, P., Tecic, D. & Nelson, M.E. 2003. A conservation focused inventory of subterranean invertebrates of the southwestern Illinois karst. Journal of Cave and Karst Studies 65: 9–21.
  • Lewis, J.J. 2004. Interstate 66 karst faunal study. Environmental Impact Statement. 17 pp.
  • Lewis, J.J. 2005. A biological inventory of caves of the Cumberland Plateau. Tennessee Chapter Cave Program, The Nature Conservancy, Nashville, Tennessee, USA. 156 pp.
  • Lewis, J.J. & Lewis, S.L. 2007. A biological reconnaissance of selected caves in the Highland Rim area of central Tennessee. Tennessee Chapter Cave Program, The Nature Conservancy, Nashville, Tennessee, USA. 42 pp.
  • Lewis, J.J., Whitaker, J.O. & Krantz, G.W. 2010. A biological reconnaissance of the invertebrate fauna of twelve Tennessee caves with notes on the guanophilic mites of the genus Macrocheles. Journal of the Tennessee Academy of Science 85: 53–61.
  • McDaniel, V.R. & Smith, K.L. 1976. Cave fauna of Arkansas: selected invertebrate taxa. Journal of the Arkansas Academy of Science 30: 57–60. https://scholarworks.uark.edu/jaas/vol30/iss1/22.
  • Peck, S.B. & Lewis, J.J. 1978. Zoogeography and evolution of the subterranean invertebrate faunas of Illinois and southeastern Missouri. National Speleological Society Bulletin 40: 39–63.
  • Webb, D.W., Taylor, S.J. & Krejca, J.K. 1993. The biological resources of Illinois caves and other subterranean environments. Illinois Natural History Survey, Champaign, Illinois, USA. 143 pp.

How to cite this account

Gammarus minus Say, 1818. Cave Biology Data Portal, account SP-1446. https://cavebiology.org/species/gammarus-minus/ (accessed 6 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