Hylobates pileatus (Gray, 1861) . Proc. Zool. Soc. Lond., 1861:136.

TYPE LOCALITY: Kampuchea (" Cambodia ") .

DISTRIBUTION: S.E. Thailand and Kampuchea S. of the Mun and Takhrong rivers and W. of the Mekong River.

PROTECTED STATUS: CITES - Appendix I as Hylobates spp. and U.S. ESA - Endangered as Hylobates spp. (including Nomascus spp.).

ISIS NUMBER: 5301406009001007001.