Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Primates Linnaeus, 1758 - primates
       Suborder Haplorrhini Pocock, 1918 see Suborder Haplorhini Pocock, 1918
         Infraorder Simiiformes Haeckel, 1866
           Parvorder Catarrhini Geoffroy Saint-Hilaire, 1812
             Superfamily Cercopithecoidea Gray, 1821
               Family Cercopithecidae Gray, 1821 - Old World monkeys
                 Subfamily Cercopithecinae Gray, 1821
                   Genus Cercocebus Geoffroy Saint-Hilaire, 1812 - mangabeys
                     1 Cercocebus agilis Milne-Edwards, 1886
                     2 Cercocebus atys (Audebert, 1797)
                     3 Cercocebus chrysogaster Lydekker, 1900
                     4 Cercocebus galeritus Peters, 1879 - agile mangabey
                     5 Cercocebus sanjei Mittermeier, in Else & Lee, eds., 1986
                     6 Cercocebus torquatus (Kerr, in Linnaeus, 1792) - white-collared mangabey