Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
       Family Tragulidae Milne-Edwards, 1864 - chevrotains
         Genus Hyemoschus Gray, 1845 [monotypic] - water chevrotain
           1 Hyemoschus aquaticus (Ogilby, 1840[1841]) - water chevrotain