Procambarus liberorum

Procambarus liberorum is a species of crayfish in the family Cambaridae. It is endemic to the United States, where it occurs in Arkansas and Oklahoma. It is known commonly as the Osage burrowing crayfish.

Distribution
In Arkansas, P. liberorum is found in the Boston Mountains, Ouachita Mountains, and Arkansas Valley, as far east as Lonoke County. It was discovered in Le Flore County, Oklahoma, in 2006.

Taxonomic history
Procambarus liberorum was originally described from three specimens caught by a cat in Bentonville, Arkansas.

The species Procambarus ferrugineus was considered to be an endangered species on the IUCN Red List, but it is now known to be identical to the widespread and secure P. liberorum, which is listed as a least-concern species.