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 Platyrrhina see Superfamily Callitrichoidea Gray, 1821
                       Superfamily Ceboidea Bonaparte, 1831
                         Family Cebidae Bonaparte, 1831 - New World monkeys
                           Subfamily Aotinae Poche, 1908 see Family Aotidae Poche, 1908
                             Genus Callicebus Thomas, 1903 - titi monkeys
                               1 Callicebus torquatus (Hoffmannsegg, 1807)
                               2 Callicebus cupreus (Spix, 1823)
                               3 Callicebus moloch (Hoffmannsegg, 1807) - dusky titi
                               4 Callicebus personatus (É. Geoffroy Saint-Hilaire, in Humboldt, 1812) - masked titi