Kinosternon sonoriense longifemorale

The Sonoyta mud turtle, Kinosternon sonoriense longifemorale, is endemic to a small area in south- western Arizona and northwestern Sonora. The only U.S. population, at Quitobaquito, declined from several hundred in the 1950s to fewer than 100 in the 1980s (Arizona Game and Fish Department 2005). A decline in 1989-90 was attributed to drought and high temperatures.