DistributionRead full entry
Global Range: (5000-20,000 square km (about 2000-8000 square miles)) This species is endemic to the Altamaha River system in Georgia (Heard, 1975), including the Ocmulgee, Little Ocmulgee, Ohoopee, and Altamaha rivers. Gene Keferl, Coastal Georgia Community College (pers. comm., 2000) reported it as extant in the Altamaha, Ocmulgee, and Little Ocmulgee Rivers of Georgia, all within the same river system. Recent genetic and conchological analyses of specimens collected from the Ogeechee River in 2004 suggest that this species is also Alasmidonta arcula (A. Bogan, North Carolina State Museum of Natural Sciences, pers. comm.; J. Williams, pers. comm.).