About Procambarus steigmani Hobbs, 1991
Procambarus steigmani, sometimes known by the common name Parkhill Prairie crayfish, is a species of crayfish belonging to the family Cambaridae. This species is endemic to Parkhill Prairie, which is located in the Trinity River basin of Collin County, Texas. It is currently listed as Data Deficient on the IUCN Red List, and some taxonomic classification suggests it may be a synonym of Procambarus regalis.