Presbytis sumatrana
Creators: name: Russell A. Mittermeier
name: Anthony B. Rylands
name: Don E. Wilson
Publisher: name: Lynx Edicions
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Primates
Cercopithecidae
Presbytis
Presbytis sumatrana

description: 114.
Black Sumatran Langur
Presbytis sumatrana
French: Langur de Sumatra / German: Schwarzer Kammlangur / Spanish: Langur negro de Sumatra
Taxonomy. Semnopithecus sumatranus S. Miller & Schlegel, 1841,
“Mt. Ophir” (= G. Talamau), north of Padang.
P. sumatrana was formerly considered a subspecies of P. melalophos. Northern populations are darker and blacker than those in the south, which are more brownish, and could be separated as the subspecies margae. It is separated from P. femoralis percura by the Rokan River and from P. siamensis paenulata by the Barumun River. Monotypic.
Distribution. W & NC Sumatra (N highlands and W coast S of the Simpang Kiri River, N of Gunung Talamau, and on the E coast from the Wampu River to the Barumun River, and SE to the Rokan River), and Batu Is (Pini I).
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.
Habitat. [Lowland and hill rainforest, old growth forest, and secondary forest.
Food and Feeding. The diet of the Black Sumatran Langur probably consists largely of young leaves, unripe fruits, flowers, mature leaves, and seeds.
Breeding. There is no information available for this species.
Activity patterns. The Black Sumatran Langur is diurnal and arboreal.
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.
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.
Bibliography. Aimi & Bakar (1992, 1996), Davies et al. (1988), Fleagle (1977), Groves (2001), Kawamura (1984), Meyer, Hodges et al. (2012), Meyer, Rinaldi et al. (2011), Mukhtar et al. (1990), Nijman & Manullang (2008), Zingeser (1970).
description: Published as part of Russell A. Mittermeier, Anthony B. Rylands & Don E. Wilson, 2013, Cercopithecidae, pp. 550-755 in Handbook of the Mammals of the World – Volume 3 Primates, Barcelona :Lynx Edicions on page 719, DOI: 10.5281/zenodo.6867065