Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Chiroptera Blumenbach, 1779 - bats
       Family Vespertilionidae Gray, 1821 - vespertilionid bats
         Subfamily Vespertilioninae Gray, 1821
           Tribe Eptesicini Volleth & Heller, 1994
             Genus Eptesicus Rafinesque, 1820 - big brown bats
               Subgenus Eptesicus Rafinesque, 1820
                 Eptesicus fuscus (Beauvois, 1796) - big brown bat
                   01 [Eptesicus fuscus fuscus] (Beauvois, 1796)
                   02 Eptesicus fuscus bahamensis Miller, 1897
                   03 Eptesicus fuscus bernardinus Rhoads, 1902
                   04 Eptesicus fuscus dutertreus Gervais, 1837
                   05 Eptesicus fuscus hispaniolae Miller, 1918
                   06 Eptesicus fuscus lynni Shamel, 1945
                   07 Eptesicus fuscus miradorensis Allen, 1866
                   08 Eptesicus fuscus osceola Rhoads, 1902
                   09 Eptesicus fuscus pallidus Young, 1908
                   10 Eptesicus fuscus peninsulae Thomas, 1898
                   11 Eptesicus fuscus petersoni Silva Taboada, 1974
                   12 Eptesicus fuscus wetmorei Jackson, 1916