Global Range: (200,000-2,500,000 square km (about 80,000-1,000,000 square miles)) The range extends from southeastern Virginia (near junction of Appomattox and James rivers) to southern Florida, west to central Texas, Oklahoma, Arkansas, Missouri, and southeastern Kansas (Triplett, 1991, Herpetol. Rev. 22:135), and north in the middle Mississippi River drainage to southern Illinois (Mitchell 1994, Phillips et al. 1999, Werler and Dixon 2000, Minton 2001, Campbell and Lamar 2004).