Class Mammalia Linnaeus, 1758 - mammals Order Chiroptera Blumenbach, 1779 - bats Family Vespertilionidae Gray, 1821 - vespertilionid bats Subfamily Vespertilioninae Gray, 1821 Genus Idionycteris Anthony, 1923 - Allen's big-eared bat 1 Idionycteris phyllotis (Allen, 1916) - Allen's big-eared bat