Order Primates Author Colin P. Groves text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 243 277 book chapter 193461 10.5281/zenodo.7353122 0df816bd-0cef-463a-94c2-b03e13ea7128 1-56098-217-9 7353122 Trachypithecus vetulus (Erxleben, 1777) . Syst. Regni Anim., p. 24 . TYPE LOCALITY: Sri Lanka , Hill country of South . DISTRIBUTION: Sri Lanka . STATUS: CITES - Appendix II; U.S. ESA - Threatened as Presbytis senex . SYNONYMS: albinus, harti, kelaartii, kephalopterus , latibarba, latibarbatus , leucoprymnus , monticola, nestor, philbricki, phillipsi, porphyrops, purpuratus, senex , ursinus . COMMENTS: Type of subgenus Kasi ; see Szalay and Delson (1979:402) . Referred to as vetulus by Corbet and Hill (1980:90) without comment. Presbytis vetulus was named in the same paper as senex on page 25 (following senex ). On the correct usage of vetulus for the species, see Napier (1985:72) .