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 Murinae Batsch, 1788 - Old World mice and rats
           Genus Haeromys Thomas, 1911 - pygmy tree mice
             1 Haeromys margarettae (Thomas, 1893) - ranee mouse
             2 Haeromys minahassae (Thomas, 1896)
             3 Haeromys pusillus (Thomas, 1893) - lesser ranee mouse