# Pacifastacus

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{{Short description|Genus of crayfishes}}
{{Automatic taxobox
| name = ''Pacifastacus''
| image = Pacifastacus leniusculus1.jpg
| image_caption = ''[Pacifastacus leniusculus](/source/Pacifastacus_leniusculus)''
| taxon = Pacifastacus
| authority = Bott, 1950
| type_species = ''[Astacus Klamathensis](/source/Signal_crayfish)''
| type_species_authority = [Stimpson](/source/William_Stimpson), 1857
}}

'''''Pacifastacus''''' is a [genus](/source/genus) of [crayfish](/source/crayfish) native to western [North America](/source/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](/source/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](/source/Pacifastacus_chenoderma)'' (fossil: [Miocene](/source/Miocene) – [Pliocene](/source/Pliocene))
*''[Pacifastacus connectens](/source/Pacifastacus_connectens)''
*''[Pacifastacus fortis](/source/Pacifastacus_fortis)'' – [Shasta crayfish](/source/Shasta_crayfish)
*''[Pacifastacus gambelii](/source/Pacifastacus_gambelii)''
*''[Pacifastacus leniusculus](/source/Pacifastacus_leniusculus)'' – [signal crayfish](/source/signal_crayfish)
*†''[Pacifastacus nigrescens](/source/Pacifastacus_nigrescens)'' – Sooty crayfish

==References==
{{Reflist}}

{{Taxonbar|from=Q3023573}}
{{Authority control}}

Category:Astacidae
Category:Crustacean genera

{{Crayfish-stub}}

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Adapted from the Wikipedia article [Pacifastacus](https://en.wikipedia.org/wiki/Pacifastacus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Pacifastacus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.