Faxonius difficilis
Faxonius difficilis, the painted crayfish, is a species of crayfish in the family Cambaridae. It is endemic to Oklahoma and Alabama in the United States. This species used to be a species complex of four subspecies but these have now been redefined. These were:
F. difficilis difficilis, the nominate subspecies
F. d. maletae
F. d. hathawayiF. d. blacki''

References

Cambaridae
Fauna of the United States
Freshwater crustaceans of North America
Crustaceans described in 1898
Taxa named by Walter Faxon
Taxobox binomials not recognized by IUCN