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. hathawayi
 * F. d. blacki