The genus Corynorhinus consists of the lump-nosed bats, or American long-eared bats. Only three species occur in the genus, all occurring in North America. Members of this group were previously in the genus Plecotus. Populations of these species are generally uncommon and declining. Two subspecies, the Virginia big-eared bat (C. t. virginianus) and the Ozark big-eared bat (C. t. ingens) are federally endangered. Corynorhinus species are: