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Cambarellus (Pandicambarus) diminutus Hobbs 1945

Least Crayfish

Keith A. Crandall, James W. Fetzner, Jr., and Horton H. Hobbs, Jr.
Containing group: Cambarellus (Pandicambarus)


Holotype, allotype, and "morphotype," National Museum of Natural History, Smithsonian Institution, Washington D.C. 81554 (male I, female, male II); paratypes, National Museum of Natural History, Smithsonian Institution, Washington D.C., Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, Carnegie Museum, Pittsburg, Pennsylvania, Department of Zoology, Tulane University, New Orleans, Louisiana.

Type Locality

Sand-bottomed stream, 3.5 miles (5.6 km) south of Irvington, Mobile County, Alabama.


Mobile County, Alabama, and George and Jackson counties, Mississippi.


Pools, sluggish portions of streams and ditches. Burrows as water disappears from habitat.

Conservation Status

Category: VU (Vulnerable)
Criteria: B1+2c
Conservation Links:

Other Names for Cambarellus (Pandicambarus) diminutus Hobbs 1945


Baillie, Jonathan, and Brian Groombridge. 1996. IUCN Red List of Threatened Animals.

Hobbs, Horton H., Jr. 1945. Two New Species of Crayfishes of the Genus Cambarellus from the Gulf Coastal States, with a key to the Species of the Genus (Decapoda, Astacidae). American Midland Naturalist, 34(2): 466-474, figures 1-26.

Hobbs, H. H. Jr. 1989. An Illustrated Checklist of the American Crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Institution Press.

About This Page
Page constructed by Emily Browne.

Keith A. Crandall
Brigham Young University, Provo, Utah, USA

James W. Fetzner, Jr.
Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA

Horton H. Hobbs, Jr.
Wittenberg University, Springfield, Ohio, USA

Correspondence regarding this page should be directed to Keith A. Crandall at

All Rights Reserved.

Citing this page:

Crandall, Keith A., James W. Fetzner, Jr., and Horton H. Hobbs, Jr. 2001. Cambarellus (Pandicambarus) diminutus Hobbs 1945. Least Crayfish. Version 01 January 2001 (under construction). http://tolweb.org/Cambarellus_%28Pandicambarus%29_diminutus/6782/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

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