Class Mammalia Linnaeus, 1758 - mammals
   Order Primates Linnaeus, 1758 - primates
     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 galeritus Peters, 1879 - agile mangabey
           3 Cercocebus torquatus (Kerr, in Linnaeus, 1792) - white-collared mangabey