Class [Mammalia] Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
       Subfamily Hesperomyinae Murray, 1866 - New-World mice and rats see Subfamily Sigmodontinae Wagner, 1843
         01 Genus Oryzomys Baird, 1857 - rice rats
         02 Genus Nesoryzomys Heller, 1904 - Galapagos rice rats
         03 Genus ‡Megalomys Trouessart, 1881 - West Indian giant rice rats
         04 Genus Wiedomys Hershkovitz, 1959 - red-nosed mouse
         05 Genus Neacomys Thomas, 1900 - bristly mice
         06 Genus Scolomys Anthony, 1924 - spiny mouse
         07 Genus Nectomys Peters, 1861 - Neotropical water rats
         08 Genus Rhipidomys Tschudi, 1844 - climbing mice
         09 Genus Thomasomys Coues, 1884 - Thomas's paramo mice
         10 Genus Aepeomys Thomas, 1898
         11 Genus Phaenomys Thomas, 1917 - Rio de Janeiro rice rat
         12 Genus Chilomys Thomas, 1897 - Colombian forest mouse
         13 Genus Tylomys Peters, 1866 - climbing rats
         14 Genus Ototylomys Merriam, 1901 - big-eared climbing rat
         15 Genus Nyctomys Saussure, 1860 - vesper rat
         16 Genus Otonyctomys Anthony, 1932 - Yucatan vesper rat
         17 Genus Rhagomys Thomas, 1917 - Brazilian arboreal mouse
         18 Genus Reithrodontomys Giglioli, 1873 - American harvest mice
         19 Genus Peromyscus Gloger, 1841 - white-footed mice
         20 Genus Habromys Hooper & Musser, 1964 - crested-tailed deer mice and slender-tailed deer mice
         21 Genus Isthmomys Hooper & Musser, 1964 - yellow deer mouse and Mount Pirri deer mouse
         22 Genus Megadontomys Merriam, 1898 - Thomas's deer mouse
         23 Genus Osgoodomys Hooper & Musser, 1964 - Michoacán deer mouse
         24 Genus Podomys Osgood, 1909 - Florida mouse
         25 Genus Ochrotomys Osgood, 1909 - golden mouse
         26 Genus Baiomys True, 1894 - pygmy mice
         27 Genus Onychomys Baird, 1857 - grasshopper mice
         28 Genus Akodon Meyen, 1833 - South American field mice
         29 Genus Bolomys Thomas, 1916
         30 Genus Microxus Thomas, 1909 see Genus Akodon Meyen, 1833
         31 Genus Zygodontomys Allen, 1897 - cane mice
         32 Genus Podoxymys Anthony, 1929 - Mount Roraima mouse
         33 Genus Lenoxus Thomas, 1909 - Andean rat
         34 Genus Oxymycterus Waterhouse, 1837 - burrowing mice
         35 Genus Juscelinomys Moojen, 1965
         36 Genus Blarinomys Thomas, 1896 - Brazilian shrew-mouse
         37 Genus Notiomys Thomas, 1890 - long-clawed mouse
         38 Genus Geoxus Thomas, 1919 - long-clawed mole mouse
         39 Genus Chelemys Thomas, 1903 - greater long-clawed mice
         40 Genus Kunsia Hershkovitz, 1966 - South American giant rats
         41 Genus Scapteromys Waterhouse, 1837 - water rat
         42 Genus Bibimys Massoia, 1979 - crimson-nosed rats
         43 Genus Scotinomys Thomas, 1913 - brown mice
         44 Genus Calomys Waterhouse, 1837 - vesper mice
         45 Genus Eligmodontia Cuvier, 1837 - highland desert mice
         46 Genus Graomys Thomas, 1916
         47 Genus Andalgalomys Williams & Mares, 1978 see Genus Graomys Thomas, 1916
         48 Genus Pseudoryzomys Hershkovitz, 1959
         49 Genus Phyllotis Waterhouse, 1837 - leaf-eared mice
         50 Genus Auliscomys Osgood, 1915
         51 Genus Irenomys Thomas, 1919 - Chilean rat
         52 Genus Chinchillula Thomas, 1898 - Altiplano chinchilla mouse
         53 Genus Punomys Osgood, 1943 - puna mouse
         54 Genus Neotomys Thomas, 1894 - Andean swamp rat
         55 Genus Reithrodon Waterhouse, 1837 - coney rat
         56 Genus Euneomys Coues, 1874 - Patagonian chinchilla-mice
         57 Genus Holochilus Brandt, 1835 - web-footed rats
         58 Genus Sigmodon Say & Ord, 1825 - cotton rats
         59 Genus Andinomys Thomas, 1902 - Andean mouse
         60 Genus Neotomodon Merriam, 1898 - Mexican volcano mouse
         61 Genus Neotoma Say & Ord, 1825 - woodrats
         62 Genus Hodomys Merriam, 1894 - Allen's wood rat
         63 Genus Nelsonia Merriam, 1897 - Nelson's wood rat
         64 Genus Xenomys Merriam, 1892 - Magdalena rat
         65 Genus Ichthyomys Thomas, 1893 - fish-eating rats
         66 Genus Anotomys Thomas, 1906 - fish-eating rat
         67 Genus Chibchanomys Voss, 1988 - Chibchan water mouse
         68 Genus Rheomys Thomas, 1906 - water mice
         69 Genus Neusticomys Anthony, 1921 - fish-eating rats