Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
                 Order Primates Linnaeus, 1758 - primates
                   Suborder Simiae see Parvorder Anthropoidea Mivart, 1864
                     Infraorder Catarrhina see Superfamily Cercopithecoidea Gray, 1821
                       Superfamily Cercopithecoidea Gray, 1821
                         Family Colobidae see Subfamily Colobinae Jerdon, 1867
                           Genus Presbytis Eschscholtz, 1821 - leaf monkeys
                             Subgenus Kasi Reichenbach, 1862 see Subgenus Kasi Reichenbach, 1862
                               Presbytis senex (Erxleben, 1777) see Presbytis vetulus Erxleben, 1777
                                 Presbytis senex nestor (Bennett, 1833) see Presbytis vetulus nestor (Bennett, 1833)