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Pacifastacus (Hobbsastacus) fortis Faxon 1914

Shasta Crayfish

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


Syntypes, National Museum of Natural History, Smithsonian Institution, Washington D.C. 44404 (1 male, 2 females), National Museum of Natural History, Smithsonian Institution, Washington D.C. 44405 (3 females), Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts 7383 (1 male, 1 female).

Type Locality

Fall River, Fall City Mills, Shasta County, California.


Known only from Shasta County, California.



Conservation Status

Category: CR (Critically Endangered)
Criteria: B1+2c
Conservation Links:

Other Names for Pacifastacus (Hobbsastacus) fortis Faxon 1914


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

Faxon, Walter. 1914. Notes on the Crayfishes in the United States National Museum and the Museum of Comparative Zoology with Descriptions of New Species and Subspecies to Which is Appended a Catalogue of the Known Species and Subspecies. Memoirs of the Museum of Comparative Zoology at Harvard College, 40(8): 351-427, 13 plates.

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. Pacifastacus (Hobbsastacus) fortis Faxon 1914. Shasta Crayfish. Version 01 January 2001 (under construction). http://tolweb.org/Pacifastacus_%28Hobbsastacus%29_fortis/6681/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

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