Class [Mammalia] Linnaeus, 1758 - mammals
   Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
     Family Bovidae Gray, 1821 - antelope, cattle, bison, buffalo, goats, and sheep
       Genus Philantomba Blyth, 1840 see Genus Cephalophus Smith, 1827
         1 Philantomba maxwellii C. H. Smith, 1827 - Maxwell's duiker see Cephalophus maxwellii (H. Smith, 1827)
         2 Philantomba monticola Thunberg, 1789 - blue duiker see Cephalophus monticola (Thunberg, 1789)