Alabama Heelsplitter Lasmigona complanata alabamensis. Special concern. Endemic to Mobile Basin. Found primarily in free-flowing reaches, but may occur in pools. Moderate Conservation Concern.
White Heelsplitter Lasmigona complanata complanata. Special concern. Restricted to Tennessee River system. Found in impounded reaches in Wheeler Reservoir and free-flowing reaches of some large tributaries. Moderate Conservation Concern.
Flutedshell Lasmigona costata. Uncommon. Limited to Tennessee River system. Remnant populations are found in Paint Rock and Elk rivers and a short reach of Bear Creek in Colbert County. Usually found in shoal habitats. HIGH CONSERVATION CONCERN.
Tennessee Heelsplitter Lasmigona holstonia. Uncommon. Found in Tennessee River tributaries. Usually occurs in small streams. HIGH CONSERVATION CONCERN.
Green Floater Lasmigona subviridis. Extirpated. In Alabama, known from a single Chattahoochee River record from Russell County collected in nineteenth century. Other records available from Apalachicola Basin in Georgia and Florida. EXTIRPATED.
