Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Soricomorpha Gregory, 1910 see Suborder Soricomorpha Gregory, 1910
       Family Soricidae Fischer, 1814 - shrews
         Subfamily Soricinae Fischer, 1814
           Tribe Blarinini Stirton, 1930
             Genus Cryptotis Pomel, 1848 - small-eared shrews
               Cryptotis parva group
                 Cryptotis parva (Say, 1823) - American least shrew
                   Cryptotis parva berlandieri Baird, 1858