DistributionRead full entry
Global Range: (1000-5000 square km (about 400-2000 square miles)) Considering it as a distinct species, A. triangulata is restricted to the Apalachicola River system, where it was found historically in the Chattachoochee and Flint rivers of Alabama and Georgia (Athearn, 1998), and the Apalachicola and lower Chipola rivers of Florida (Brim Box and Williams, 2000). It has not been found in Florida since 1990 and may be extirpated from that state (Brim Box and Williams, 2000). In Alabama, it was last reported from (and is still extant in) Uchee and Little Uchee creeks in Russell and Lee counties (Mirarchi et al., 2004; Williams et al., 2008). Flint River, Upson County, Georgia specimens identified by Athearn (1998) as A. wrightiana may also be A. triangulata (Johnson 1967).