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 Microhydromys Tate & Archbold, 1941
1 Microhydromys musseri Flannery, 1989
2 Microhydromys richardsoni Tate & Archbold, 1941 - groove-toothed shrew-mouse