Class Mammalia Linnaeus, 1758 - mammals
   Order Primates Linnaeus, 1758 - primates
     Family Cercopithecidae Gray, 1821 - Old World monkeys
       Subfamily Colobinae Jerdon, 1867
         Genus Trachypithecus Reichenbach, 1862 - brow-ridged langurs, leaf monkeys
           01 Trachypithecus auratus (É. Geoffroy Saint-Hilaire, 1812)
           02 Trachypithecus cristatus (Raffles, 1821)
           03 Trachypithecus francoisi (Pousargues, 1898)
           04 Trachypithecus geei Khajuria, 1956
           05 Trachypithecus johnii (J. Fischer, 1829)
           06 Trachypithecus obscurus (Reid, 1837)
           07 Trachypithecus phayrei (Blyth, 1847)
           08 Trachypithecus pileatus (Blyth, 1843)
           09 Trachypithecus vetulus (Erxleben, 1777)
           10 Subgenus Trachypithecus Reichenbach, 1862
           11 Subgenus Kasi Reichenbach, 1862