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 Tylomys Peters, 1866 - climbing rats
           1 Tylomys bullaris Merriam, 1901 - Chiapan climbing rat
           2 Tylomys fulviventer Anthony, 1916 - fulvous-bellied climbing rat
           3 Tylomys mirae Thomas, 1899
           4 Tylomys nudicaudus Peters, 1866 - naked-tailed climbing rat
           5 Tylomys panamensis Gray, 1873 - Panama climbing rat
           6 Tylomys tumbalensis Merriam, 1901 - Tumbala climbing rat
           7 Tylomys watsoni Thomas, 1899 - Watson's climbing rat