Pygathrix avunculus (Dollman, 1912) . Abstr. Proc. Zool. Soc. Lond., 1912(106):18.

TYPE LOCALITY: Vietnam, Songkoi River, Yen Bay .

DISTRIBUTION: N Vietnam.

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

COMMENTS: Subgenus Rhinopithecus; see Szalay and Delson (1979:404).