Black Sumatran Langur

• Common Name: Black Sumatran Langur
• Taxonomy Classification Year: 1841
• Monkey Size: 50 to 50 cm (19.68 to 19.68 in)
• Skin Color(s): Brownish-gray, medium-gray
• Habitat: Rainforests
• Diet: Herbivorous
• Native Countries: Indonesia

The black Sumatran langur^[1] is a species of monkey in the Cercopithecidae family that is endemic to Indonesia’s Sumatra Island.

• Presbytis sumatrana has a short snout and poorly developed eyebrow ridges.
• It has long forelimbs and relatively long hindlimbs, consistent with its preferred mode of locomotion, hopping, and brachiation.
• These Asian monkeys have long bicolored tails and have an average weight of 6.0 kilograms.
• Presbytis sumatrana can be distinguished from other species in the same genus by its call, skin-coating, and head bone features, such as narrow interorbitals and long nostrils.
• The black Sumatran langur has a brownish-gray coat that is lighter underneath than on the back.
• The tail has two-color tones, and the head has a distinctive black crest.

• Presbytis sumatrana was once considered a subspecies of Sumatran Surili. Still, genetic analysis has shown it to be a distinct species.
• It is listed as vulnerable by the IUCN, mainly due to deforestation and raising animals as pets.
• The distribution of this species is uneven due to habitat loss and the conversion of forests to plantations.
• This langur monkey mainly eats young leaves, but other plants, such as flowers, seeds, and berries, can also be eaten.
• Presbytis sumatrana lives in groups of one male and 5 to 7 females.