Presbytis sumatrana

Habitat. [Lowland and hill rainforest, old growth forest, and secondary forest.

Sumber: Cercopithecidae

Movements, Home range and Social organization. The Black Sumatran Langur has never been studied in the wild. Like other species of Presbytis, it likely lives in small onemale groups and defends exclusive territories.

Sumber: Cercopithecidae

Status and Conservation. CITES Appendix II. Classified as Endangered on The IUCN Red List (as P. melalophos sumatranus). The Black Sumatran Langur is protected under Indonesian law. About 50 % of the forests in its range have been degraded over the past 30 years. Remaining forest is a fragmented mosaic among commercial plantations. The illegal pet trade is a further threat to the Black Sumatran Langur. It occurs in Batang Gadis National Park.

Sumber: Cercopithecidae

Descriptive notes. Head — body 33 - 35 cm (males) and 34 - 39 cm (females), tail 64 — 72 cm (males) and 66 - 84 cm (females); weight 4.9 - 7.2 kg (males) and 5.1 - 8.5 kg (females). Upperparts of the Black Sumatran Langur are dark gray-brown to nearly black, including dorsal surface of tail. Hands, feet, and outer limbs are black; throat, underparts, underside oftail, and inner surfaces of limbs as far as wrists and ankles are white, sharply set off from dark color of upperparts. Crest is gray to dark brown, and sometimes indistinctly formed. Facial skin is mostly bluish, flesh colored around the mouth, but lips are black.