Under Construction

Pacifastacus (Pacifastacus) leniusculus trowbridgii Stimpson 1857

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


Syntypes, National Museum of Natural History, Smithsonian Institution, Washington D.C. 2080 (2 males, 2 females), Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts 3510 (1 male), Boston Society of Natural History, Boston, Massachusetts, Peabody Museum of Natural History, Yale University, New Haven, Conneticut.

Type Locality

Columbia River above Astoria, Oregon.


British Columbia, California, Idaho, Oregon, Nevada, and Washington. Introduced into Japan (Kamita, 1970:148).


Streams and lakes.


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

Kamita, Tsuneichi. 1970. Studies on the Fresh-Water Shrimps, Prawns, and Crawfishes of Japan. 213 pages. Patsue.

Stimpson, William. 1857. Notices of New Species of Crustacea of Western North America; Being an Abstract from a Paper to be Published in the Journal of the Society. Proceedings of the Boston Society of Natural History, 6(6): 84-89.

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 (Pacifastacus) leniusculus trowbridgii Stimpson 1857. Version 01 January 2001 (under construction). http://tolweb.org/Pacifastacus_%28Pacifastacus%29_leniusculus_trowbridgii/6687/2001.01.01 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

Pacifastacus (Pacifastacus) leniusculus trowbridgii

Page Content

articles & notes



Explore Other Groups

random page

  go to the Tree of Life home page