Rediscovery, systematic position, and re-description of 'Leptoxis' melanoides (Conrad, 1834) (Mollusca: Gastropoda: Cerithioidea: Pleuroceridae) from the Black Warrior River, Alabama, U.S.A.

摘要

The rediscovery of Leptoxis melanoides, a pleurocerid snail from the Black Warrior River drainage of Alabama, previously considered to be extinct, is presented. The radula of L. melanoides more closely resembles that of Elimia, and an analysis of 16S rDNA sequences positions the species within a monophyletic clade of Elimia. Therefore, we re-describe the species as E. melanoides, designate a neotype, precise type locality, and illustrate the specimen and its radula.