Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
       Family Heteromyidae Gray, 1868 - pocket mice, kangaroo rats, and kangaroo mice
         Subfamily Perognathinae Coues, 1875
           Genus Perognathus Wied-Neuwied, 1839 - silky pocket mice
             01 Perognathus alticola Rhoads, 1894 - white-eared pocket mouse
             02 Perognathus amplus Osgood, 1900 - Arizona pocket mouse
             03 Perognathus fasciatus Wied-Neuwied, 1839 - olive-backed pocket mouse
             04 Perognathus flavescens Merriam, 1889 - plains pocket mouse
             05 Perognathus flavus Baird, 1855 - silky pocket mouse
             06 Perognathus inornatus Merriam, 1889 - San Joaquin pocket mouse
             07 Perognathus longimembris (Coues, 1875) - little pocket mouse
             08 Perognathus merriami J.A. Allen, 1892 - Merriam's pocket mouse
             09 Perognathus parvus (Peale, 1848) - Great Basin pocket mouse
             10 Perognathus xanthanotus Grinnell, 1912 - yellow-eared pocket mouse