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
         Genus Holochilus Brandt, 1835 - web-footed rats
           1 Holochilus brasiliensis Desmarest, 1819
           2 Holochilus chacarius Thomas, 1906
           3 Holochilus magnus Hershkovitz, 1955
           4 Holochilus sciureus Wagner, 1842