Faxonius is a genus of freshwater crayfish in the family Cambaridae. There are more than 90 described species in Faxonius.[1] 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, however F. stygocaneyi was reallocated,[2] even though it lives in caves.
These species belong to the genus Faxonius:[2]
Faxonius is a genus of freshwater crayfish in the family Cambaridae. There are more than 90 described species in Faxonius. 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, however F. stygocaneyi was reallocated, even though it lives in caves.