Pacifastacus

{{Short description|Genus of crayfishes}} {{Automatic taxobox | name = ''Pacifastacus'' | image = Pacifastacus leniusculus1.jpg | image_caption = ''Pacifastacus leniusculus'' | taxon = Pacifastacus | authority = Bott, 1950 | type_species = ''Astacus Klamathensis'' | type_species_authority = Stimpson, 1857 }}

'''''Pacifastacus''''' is a genus of crayfish native to western North America (USA and Canada), containing six species, two of which are extinct:<ref>{{cite web |author=James W. Fetzner Jr. |date=January 14, 2008 |title=Genus ''Pacifastacus'' Bott, 1950 |work=Crayfish Taxon Browser |publisher=Carnegie Museum of Natural History |access-date=May 26, 2010 |url=http://iz.carnegiemnh.org/crayfish/NewAstacidea/genus.asp?g=Pacifastacus |archive-url=https://web.archive.org/web/20110611172041/http://iz.carnegiemnh.org/crayfish/NewAstacidea/genus.asp?g=Pacifastacus |archive-date=June 11, 2011}}</ref> *†''Pacifastacus chenoderma'' (fossil: Miocene – Pliocene) *''Pacifastacus connectens'' *''Pacifastacus fortis'' – Shasta crayfish *''Pacifastacus gambelii'' *''Pacifastacus leniusculus'' – signal crayfish *†''Pacifastacus nigrescens'' – Sooty crayfish

==References== {{Reflist}}

Category:Astacidae Category:Crustacean genera