Alabama cave amphipod
Stygobromus alabamensis (Stout, 1911)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Stygobromus |
| Species | Stygobromus alabamensis (Stout, 1911) |
Synonyms
- Stygonectes alabamensis (Stout, 1911) (prior combination, CoL)
- Boruta americana Mackin, 1935 (subjective synonym, CoL)
- Stygonectes americanus (Mackin, 1935) (subjective synonym, CoL)
- Synpleonia americana (Mackin, 1935) (subjective synonym, CoL)
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Type locality
well, 1 mi E post office, Auburn, Lee Co. AL
Range
Known from 72 counties across nine states across four karst regions.
Continent
North America
Country
United States
States and provinces
Alabama, Arkansas, Kansas, Louisiana, Missouri, Mississippi, Oklahoma, Tennessee, Texas
Counties
- Alabama
- Clarke, Lee, Pike, Wilcox
- Arkansas
- Baxter, Benton, Boone, Carroll, Cleburne, Conway, Crawford, Garland, Independence, Izard, Jackson, Johnson, Logan, Madison, Marion, Newton, Ozard, Ozark, Pulaski, Searcy, Stone, Van Buren, Washington
- Kansas
- Cherokee, Douglas, Marion
- Louisiana
- Union
- Missouri
- Barry, Camden, Dallas, Douglas, Greene, Hickory, Jasper, LaClede, Laclade, Lawrence, Miller, Newton, Ozark, Phelps, Pulaski, Shannon, Stone, Taney, Webster, Wright
- Mississippi
- Clarke, Lauderdale, Wayne
- Oklahoma
- Adair, Cherokee, Choctaw, Comanche, Delaware, Latimer, Major, Mayes, Murray, Okfuskee, Ottawa, Pontotoc, Woodward
- Tennessee
- Tipton
- Texas
- Dallas, Irion, Nacogdoches, Palo Pinto
Karst regions
Edwards Plateau and Balcones, Interior Low Plateau, Other, Ozarks
Specimens
Type material
- Holotype
- USNM 141714 · National Museum of Natural History, Smithsonian Institution
- Allotype
- USNM 141715 · National Museum of Natural History, Smithsonian Institution
- Paratype ×3
- National Museum of Natural History, Smithsonian Institution
Collections holding material
| Institution | Lots |
|---|---|
| National Museum of Natural History, Smithsonian Institution | 206 |
| American Museum of Natural History | 1 |
207 cataloged lots in 2 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 207 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G5 Secure
Global rank last reviewed 21 August 2002.
Subnational ranks
- Alabama
- SNR Unranked
- Arkansas
- SNR Unranked
- Kansas
- SNR Unranked
- Louisiana
- SNR Unranked
- Missouri
- SNR Unranked
- Oklahoma
- S3 Vulnerable
- Tennessee
- S4 Apparently Secure
- Texas
- S1 Critically Imperiled
- Mississippi
- SNR Unranked
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
- Holsinger, J.R. & Lewis, J.J. 2025. Systematics of the subterranean amphipod genus Stygobromus (Crangonyctidae): Species of the Ozarks and adjacent regions. Journal of Cave and Karst Studies 87: 34–81. doi:10.4311/2024LSC0113
- 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
- McDaniel, V.R., Paige, K.N. & Tumlison, C.R. 1979. Cave fauna of Arkansas: additional invertebrate and vertebrate records. Journal of the Arkansas Academy of Science 33: 84–85. https://scholarworks.uark.edu/jaas/vol33/iss1/35. details
- 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. details
- Nicholas, G. 1960. Checklist of macroscopic troglobitic organisms of the United States. The American Midland Naturalist 64: 123–160. doi:10.2307/2422897
- Stout, V.R. 1911. A new subterranean freshwater amphipod. Pomona College Journal of Entomology 3: 569–571. https://www.biodiversitylibrary.org/page/8204540. 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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