Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Chiroptera Blumenbach, 1779 - bats
       Family Vespertilionidae Gray, 1821 - vespertilionid bats
         Subfamily Myotinae Tate, 1942
           Genus Myotis Kaup, 1829 - mouse-eared bats
             Myotis lucifugus (Le Conte, 1831) - little brown bat
               1 [Myotis lucifugus lucifugus] (Le Conte, 1831)
               2 Myotis lucifugus alascensis Miller, 1897
               3 Myotis lucifugus carissima Thomas, 1904
               4 Myotis lucifugus pernox Hollister, 1911
               5 Myotis lucifugus relictus Harris, 1974