The gray-shanked douc langur[1] (Pygathrix cinerea) is a species of douc endemic to the Vietnamese provinces of Gia Lai, Quảng Ngãi, Kon Tum, Bình Định, and Quảng Nam.
- Gray-shanked Douc langur’s body, crown, and arms are mottled light gray with a lighter underside.
- The shoulders, thighs, and part of the rump are marked with white spots. In addition, the feet and hands are black, while the lower legs are mottled dark grey.
- The bare skin of the face is yellowish brown, except for the areas around the chin and mouth, which are white.
- Long white fur covers the sides of the face. This colorful monkey has a white throat with a band of orange collar outlined by a black line connecting the black spots on their shoulders.
- Gray-shanked douc langur tails are almost the same length as the total length of the head and body.
- Genetically, Gray-shanked douc langurs are similar to Red-shanked douc langurs (Pygathrix nemaeus); however, they are considered separate species based on morphological differences.