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 Hominoidea Gray, 1825
               Family Hylobatidae Gray, 1871 - gibbons
                 Genus Nomascus Miller, 1933
                   Nomascus concolor (Harlan, 1826)
                     1 [Nomascus concolor concolor]ᵀ (Harlan, 1826)
                     2 Nomascus concolor furvogaster Ma & Y. Wang, 1986
                     3 Nomascus concolor jingdongensis Ma & Y. Wang, 1986
                     4 Nomascus concolor lu Delacour, 1951
                     5 ?Nomascus concolor nasutus Kunkel d'Herculais, 1884