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 mystacinus (Kuhl, 1817) - whiskered bat
               1 [Myotis mystacinus mystacinus] (Kuhl, 1817)
               2 Myotis mystacinus caucasicus Tsytsulina, 2000
               3 Myotis mystacinus occidentalis Benda, 2000