Under Construction

Cambarus (Puncticambarus) extraneus Hagen 1870

Chickamanga Crayfish

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


Syntypes, Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts 175 (3 male II, 1 female), National Museum of Natural History, Smithsonian Institution, Washington D.C. 4957 (female). Hagen (1870:74) indecated that among the 6 specimens available there were "Male Form I, and II. Fem." The first form male is no longer among the types and was missing from them when examined in the early 1940s.

Type Locality

"Tennessee River, (near the borders of ?) Georgia" (Hagen, 1870:74). The emendation offered by Ortmann (1931:97) must be rejected because Cambarus (P.) extraneus does not occur in the Coosa (Etowah) Basin. Ortmann confused C. (P.) coosae with Hagen's species.


Known only from the South Chickamauga Creek basin (Tennessee River drainage) in Catoosa, Walker, and Whitfield counties, Georgia, and in the same basin in Hamilton County, Tennessee (Bouchard, 1972b:58).



Conservation Status

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

Other Names for Cambarus (Puncticambarus) extraneus Hagen 1870


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

Bouchard, Raymond W. 1972. A Contribution to the Knowledge of Tennesee Crayfish. vi + 113 pages, figures 1, 2. Doctoral dissertation, University of Tennessee, Knoxville.

Hagen, Hermann A. 1870. Monograph of the North American Astacidae. In Illustrated Catalogue of the Musuem of Comparative Zoology at Harvard College, 3: viii + 109 pages, 11 plates.

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

Ortmann, A.E. 1931. Crawfishes of the Southern Appalachians and the cumberland Plateau. Annals of the Carnegie Museum, 20(2): 61-160.

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. Cambarus (Puncticambarus) extraneus Hagen 1870. Chickamanga Crayfish. Version 01 January 2001 (under construction). http://tolweb.org/Cambarus_%28Puncticambarus%29_extraneus/7002/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

edit this page
close box

This page is a Tree of Life Leaf Page.

Each ToL leaf page provides a synopsis of the characteristics of a group of organisms representing a leaf at the tip of the Tree of Life. The major distinction between a leaf and a branch of the Tree of Life is that a leaf cannot generally be further subdivided into subgroups representing distinct genetic lineages.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box

Cambarus (Puncticambarus) extraneus

Page Content

articles & notes



Explore Other Groups

random page

  go to the Tree of Life home page