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 Platyrrhini Geoffroy Saint-Hilaire, 1812
             Family Aotidae Poche, 1908
               Genus Aotus Illiger, 1811 - douroucoulis
                 Aotus azarae (Humboldt, 1811) - southern night monkey
                   1 [Aotus azarae azarae]ᵀ (Humboldt, 1811)
                   2 Aotus azarae boliviensis Elliot, 1907
                   3 Aotus azarae infulatus (Kuhl, 1820)