Pygathrix bieti Milne-Edwards, 1897 . Bull. Mus. Hist. Nat. Paris, 3:157.

TYPE LOCALITY: China, Yunnan, left bank of upper Mekong, Kiape, 28°25'N, 98°55'E, a day's journey south of Atentse .

DISTRIBUTION: Mountains of left bank of upper Mekong (China).

STATUS: CITES - Appendix I; U.S. ESA and IUCN - Endangered.

COMMENTS: Regarded by Groves (1970:569) as a subspecies of roxellana, but regarded as a full species by Peng et al. (1988).