Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
       Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
         Subfamily Sigmodontinae Wagner, 1843
           Genus Eligmodontia Cuvier, 1837 - highland desert mice
             1 Eligmodontia moreni Thomas, 1896
             2 Eligmodontia morgani J.A. Allen, 1901 - western Patagonian laucha
             3 Eligmodontia puerulus (Philippi, 1896) - Altiplano laucha
             4 Eligmodontia typus F. Cuvier, 1837 - highland desert mouse