Black comb langur
Black comb langur | ||||||||||||
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![]() Young black comb langur |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Presbytis sumatrana | ||||||||||||
Müller & Schlegel , 1841 |
The black crested langur ( Presbytis sumatrana , Syn . : P. melalophos sumatrana ) is a primate species from the group of the slender monkeys (Presbytini), which occurs in a small area on the Indonesian island of Sumatra and the Batu Islands . The distribution area roughly coincides with the territory of the province of North Sumatra , but the species does not occur on Siberut .
features
The black comb langur reaches a head-trunk length of 33 to 35 cm (males) or 34 to 39 cm (females), a tail length of 64 to 72.5 cm (males) or 66 to 84 cm (females), and a weight of 4.9 to 7.2 kg (males) and 5.1 to 8.5 kg (females). The fur on the back and the top of the tail are dark gray-brown to black. The outsides of amen and legs, hands and feet are black. The throat, abdomen, insides of the limbs, and the underside of the tail are white and sharply delineated from the dark top. The light head of hair on the head has a gray to dark brown, often indistinct central stripe. The face is bluish, flesh-colored around the mouth, and the lips are black.
Way of life
The black crested langur occurs in rainforests in flat and mountainous regions. These include both primary and secondary forests. Its behavior has not yet been further explored. Like other boned langurs, it probably lives in groups and is territorial . The monkeys feed mainly on young leaves, fruits, flowers and seeds.
Danger
The International Union for Conservation of Nature and Natural Resources ( IUCN ) estimates the existence of the black crested langur as endangered. Its originally existing habitat has been cut down to 50% in the past 30 years. Most of the rest today consists of secondary forest and forests.
literature
- D. Zinner, GH Fickenscher & C. Roos: Family Cercopithecidae (Old World monkeys). Page 719 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World- Volume 3: Primates. Lynx Edicions, 2013 ISBN 978-8496553897
Web links
- Presbytis melalophos ssp. sumatranus in the endangered Red List species the IUCN 2008. Posted by: Nijman, V. & Manullang, B., 2008. Accessed June 18, 2015.