Class Mammalia Linnaeus, 1758 - mammals
   Order Chiroptera Blumenbach, 1779 - bats
     Family Molossidae Gervais, 1856 - free-tailed bats and mastiff bats
       Genus Molossus Geoffroy, 1805 - velvety free-tailed bats
         1 Molossus ater Geoffroy, 1805 sensu auct. - black mastiff-bat see Molossus rufus Geoffroy, 1805
         2 Molossus bondae J.A. Allen, 1904 - Bonda mastiff-bat see Molossus currentium Thomas, 1901
         3 Molossus molossus (Pallas, 1766) - Pallas' mastiff-bat
         4 Molossus pretiosus Miller, 1902 - Miller's mastiff-bat
         5 Molossus sinaloae Allen, 1906 - Allen's mastiff-bat