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).