{{Short description|Genus of crayfishes}} {{Automatic taxobox |image=Orconectes limosus - Kamberkrebs.jpg |image_caption=''Faxonius limosus'' |image_alt=Faxonius limosus |taxon=Faxonius |authority=Ortmann, 1905 |type_species = ''Faxonius limosus'' |type_species_authority = Rafinesque, 1817 }}
'''''Faxonius''''' is a genus of freshwater crayfish in the family Cambaridae. There are more than 90 described species in ''Faxonius''.<ref name=gbif/> It includes the rusty crayfish, an invasive species in North America, and three species, ''F. virilis'', ''F. immunis'', and ''F. limosus'', that are invasive to Europe.
This genus was formerly considered a subgenus of ''Orconectes''. Several former ''Orconectes'' species were added to this genus in 2017, leaving only the cave dwelling species unchanged.
==Species== These species belong to the genus ''Faxonius'':<ref name=oxford/> {{Div col|colwidth=29em}} * ''Faxonius acares'' <small>(Fitzpatrick, 1965)</small> * ''Faxonius alabamensis'' <small>(Faxon, 1884)</small> * ''Faxonius alluvius'' <small>(Simon & McMurray, 2014)</small> * ''Faxonius barrenensis'' <small>(Rhoades, 1944)</small> * ''Faxonius bellator'' <small>Bloom, McCall, Schuster & Blanton, 2019</small><ref>{{Cite web|title=Systematics and description of a new species of ''Faxonius'' Ortmann, 1905 (Decapoda: Astacidea: Cambaridae) from the Red River system of Kentucky and Tennessee, USA|url=https://academic.oup.com/jcb/article/39/1/40/5280214|website=Oxford Academic|access-date=2020-09-10}}</ref> * ''Faxonius bisectus'' <small>(Rhoades, 1944)</small> * ''Faxonius burri'' <small>(Taylor & Sabaj, 1998)</small> * ''Faxonius carolinensis'' <small>(Cooper & Cooper, 1995)</small> * ''Faxonius castaneus'' <small>(Johnson, 2010)</small> * ''Faxonius causeyi'' <small>(Jester, 1967)</small> * ''Faxonius chickasawae'' <small>(Cooper & Hobbs, 1980)</small> * ''Faxonius compressus'' <small>(Faxon, 1884)</small> * ''Faxonius cooperi'' <small>(Cooper & Hobbs, 1980)</small> * ''Faxonius cristavarius'' <small>(Taylor, 2000)</small> * ''Faxonius cyanodigitus'' <small>(Johnson, 2010)</small> * ''Faxonius deanae'' <small>(Reimer & Jester, 1975)</small> * ''Faxonius difficilis'' <small>(Faxon, 1898)</small> * ''Faxonius durelli'' <small>(Bouchard & Bouchard, 1995)</small> * ''Faxonius elix'' <small>Couch & Hayes, 2022</small><ref>{{Cite web|title=Description of a new species of crayfish in the genus Faxonius (Decapoda: Cambaridae) from the Lower Ohio River Drainage, with evidence of glacial influence on the distribution of some crayfish species throughout the Ohio River basin|url=https://www.biotaxa.org/Zootaxa/article/view/zootaxa.5165.3.3|website=Zootaxa|access-date=2022-08-15}}</ref> * ''Faxonius erichsonianus'' <small>(Faxon, 1898)</small> * ''Faxonius etnieri'' <small>(Bouchard & Bouchard, 1976)</small> * ''Faxonius eupunctus'' <small>(Williams, 1952)</small> * ''Faxonius forceps'' <small>(Faxon, 1884)</small> * ''Faxonius harrisonii'' <small>(Faxon, 1884)</small> * ''Faxonius hartfieldi'' <small>(Fitzpatrick & Suttkus, 1992)</small> * ''Faxonius hathawayi'' ** ''Faxonius hathawayi blacki'' <small>(Walls, 1972)</small> ** ''Faxonius hathawayi hathawayi'' <small>(Penn, 1952)</small> * ''Faxonius hobbsi'' <small>(Penn, 1950)</small> * ''Faxonius holti'' <small>(Cooper & Hobbs, 1980)</small> * ''Faxonius hylas'' <small>(Faxon, 1890)</small> * ''Faxonius illinoiensis'' <small>(Brown, 1956)</small> * ''Faxonius immunis'' <small>(Hagen, 1870)</small> * ''Faxonius indianensis'' <small>(Hay, 1896)</small> * ''Faxonius jeffersoni'' <small>(Rhoades, 1944)</small> * ''Faxonius jonesi'' <small>(Fitzpatrick, 1992)</small> * ''Faxonius juvenilis'' <small>(Hagen, 1870)</small> * ''Faxonius kentuckiensis'' <small>(Rhoades, 1944)</small> * ''Faxonius lancifer'' <small>(Hagen, 1870)</small> * ''Faxonius leptogonopodus'' <small>(Hobbs, 1948)</small> * ''Faxonius limosus'' <small>(Rafinesque, 1817)</small> * ''Faxonius longidigitus'' <small>(Faxon, 1898)</small> * ''Faxonius luteus'' <small>(Creaser, 1933)</small> * ''Faxonius macrus'' <small>(Williams, 1952)</small> * ''Faxonius maletae'' <small>(Walls, 1972)</small> * ''Faxonius marchandi'' <small>(Hobbs, 1948)</small> * ''Faxonius margorectus'' <small>(Taylor, 2002)</small> * ''Faxonius medius'' <small>(Faxon, 1884)</small> * ''Faxonius meeki'' ** ''Faxonius meeki brevis'' <small>(Williams, 1952)</small> ** ''Faxonius meeki meeki'' <small>(Faxon, 1898)</small> * ''Faxonius menae'' <small>(Creaser, 1933)</small> * ''Faxonius mirus'' <small>(Ortmann, 1931)</small> * ''Faxonius mississippiensis'' <small>(Faxon, 1884)</small> * ''Faxonius nais'' <small>(Faxon, 1885)</small> * ''Faxonius nana'' <small>(Williams, 1952)</small> * ''Faxonius neglectus'' ** ''Faxonius neglectus chaenodactylus'' <small>(Williams, 1952)</small> ** ''Faxonius neglectus neglectus'' <small>(Faxon, 1885)</small> * ''Faxonius obscurus'' <small>(Hagen, 1870)</small> * ''Faxonius occidentalis'' <small>(Johnson, 2010)</small> * ''Faxonius ozarkae'' <small>(Williams, 1952)</small> * ''Faxonius pagei'' <small>(Taylor & Sabaj, 1997)</small> * ''Faxonius palmeri'' ** ''Faxonius palmeri creolanus'' <small>(Creaser, 1933)</small> ** ''Faxonius palmeri longimanus'' <small>(Faxon, 1898)</small> ** ''Faxonius palmeri palmeri'' <small>(Faxon, 1884)</small> * ''Faxonius pardalotus'' <small>(Wetzel, Poly & Fetzner, 2005)</small> * ''Faxonius perfectus'' <small>(Walls, 1972)</small> * ''Faxonius peruncus'' <small>(Creaser, 1931)</small> * ''Faxonius placidus'' <small>(Hagen, 1870)</small> * ''Faxonius propinquus'' <small>(Girard, 1852)</small><ref>{{Cite web|title=NAS - Nonindigenous Aquatic Species|url=https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2249|website=USGS|access-date=2020-08-19}}</ref> * ''Faxonius punctimanus'' <small>(Creaser, 1933)</small> * ''Faxonius putnami'' <small>(Faxon, 1884)</small> * ''Faxonius quadruncus'' <small>(Creaser, 1933)</small> * ''Faxonius quinebaugensis'' <small>(Mathews & Warren, 2008)</small> * ''Faxonius rafinesquei'' <small>(Rhoades, 1944)</small> * ''Faxonius raymondi'' <small>(Thoma & Stocker, 2009)</small> * ''Faxonius rhoadesi'' <small>(Hobbs, 1949)</small> * ''Faxonius ronaldi'' <small>(Taylor, 2000)</small> * ''Faxonius roberti'' <small>Fetzner & Taylor, 2018</small><ref name=ZT>{{Cite web|title=Two new species of freshwater crayfish of the genus ''Faxonius'' (Decapoda: Cambaridae) from the Ozark Highlands of Arkansas and Missouri|url=https://www.mapress.com/j/zt/article/viewFile/zootaxa.4399.4.2/14293|website=Zootaxa|access-date=2020-09-09}}</ref> * ''Faxonius rusticus'' <small>(Girard, 1852)</small> * ''Faxonius sanbornii'' ** ''Faxonius sanbornii erismophorous'' <small>(Hobbs & Fitzpatrick, 1962)</small> ** ''Faxonius sanbornii sanbornii'' <small>(Faxon, 1884)</small> * ''Faxonius saxatilis'' <small>(Bouchard & Bouchard, 1976)</small> * ''Faxonius shoupi'' <small>(Hobbs, 1948)</small> * ''Faxonius sloanii'' <small>(Bundy in Forbes, 1876)</small> * ''Faxonius spinosus'' <small>(Bundy, 1877)</small> * ''Faxonius stannardi'' <small>(Page, 1985)</small> * ''Faxonius taylori'' <small>(Schuster, 2008)</small> * ''Faxonius texanus'' <small>(Johnson, 2010)</small> * ''Faxonius theaphionensis'' <small>(Simon, Timm & Morris, 2005)</small> * ''Faxonius transfuga'' <small>(Fitzpatrick, 1966)</small> * ''Faxonius tricuspis'' <small>(Rhoades, 1944)</small> * ''Faxonius validus'' <small>(Faxon, 1914)</small> * ''Faxonius virginiensis'' <small>(Hobbs, 1951)</small> * ''Faxonius virilis'' <small>(Hagen, 1870)</small> * ''Faxonius wagneri'' <small>(Fetzner & Taylor, 2018)</small><ref name=ZT/> * ''Faxonius williamsi'' <small>(Fitzpatrick, 1966)</small> * ''Faxonius wrighti'' <small>(Hobbs, 1948)</small> * ''Faxonius yanahlindus'' <small>(Taylor, Rhoden & Schuster, 2016)</small> {{Div col end}}
==See also== {{Portal|Crustaceans|Arthropods}} * ''Faxonella'', a genus of crayfish
==References== {{Reflist|refs= <ref name=gbif> {{Cite web| title=''Faxonius'' | url=https://www.gbif.org/species/4646327 | website=GBIF | access-date=2019-12-25 }}</ref> <ref name=oxford>{{Cite journal |first1=Keith A |last1=Crandall |first2=Sammy |last2=De Grave |date=2017 |title=''An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list'' |journal=Journal of Crustacean Biology |volume=37 |issue=5 |pages=615–653 |doi=10.1093/jcbiol/rux070|doi-access=free }}</ref> }}
==Further reading== {{Refbegin}} * {{Cite journal | title = An Illustrated Checklist of the American Crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae) | date = 1989 | last1 = Hobbs | first1 = Horton H. Jr. | journal = Smithsonian Contributions to Zoology | issue = 480 | pages = 1–236 | doi = 10.5479/si.00810282.480 | url = https://repository.si.edu/bitstream/handle/10088/5542/SCtZ-0480-Lo_res.pdf?sequence=2&isAllowed=y }} * {{Cite journal | title = Annotated checklist of decapod crustaceans of Atlantic coastal and continental shelf waters of the United States | date = 2003 | last1 = Nizinski | first1 = Martha S. | journal = Proceedings of the Biological Society of Washington | volume = 116| issue = 1| pages = 96–157 | issn = 0006-324X | url = https://research.nhm.org/pdfs/12091/12091.pdf }} {{Refend}}
==External links== {{Commons category|Faxonius}} *{{Wikispecies-inline|Faxonius|''Faxonius''}}
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Category:Cambaridae Category:Taxa named by Arnold Edward Ortmann Category:Decapod genera