Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Chiroptera Blumenbach, 1779 - bats
       Family Mormoopidae Saussure, 1860 - naked-backed bats, moustached bats, ghost-faced bats
         Genus Pteronotus Gray, 1838 - naked-backed bats, moustached bats
           Subgenus Chilonycteris Gray, 1839 - moustached bats
             Pteronotus quadridens (Gundlach, 1840) - sooty moustached bat
               1 [Pteronotus quadridens quadridens] (Gundlach, 1840)
               2 Pteronotus quadridens fuliginosus Gray, 1843