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 Hylobates Illiger, 1811 - gibbons
                   1 Hylobates agilis F. Cuvier, in É. Geoffroy Saint-Hilaire & F. Cuvier, 1821 - agile gibbon
                   2 Hylobates albibarbis Lyon, 1911
                   3 Hylobates klossii (Miller, 1903) - Kloss's gibbon
                   4 Hylobates lar (C. Linnaeus, 1771) - common gibbon
                   5 Hylobates moloch (Audebert, 1798) - Javan gibbon
                   6 Hylobates muelleri Martin, 1841 - Müller's gibbon
                   7 Hylobates pileatus (Gray, 1861) - pileated gibbon