Cross Marked Langur

• Common Name: Cross-marked Langur
• Taxonomy Classification Year: 1838
• Monkey Size: 43.2 to 61.0 cm (17.0 to 24.0 in)
• Skin Color(s): Gray-black or brown
• Habitat: Rainforest
• Diet: Herbivorous
• Native Countries: Indonesia, Malaysia, Brunei

The Sarawak surili^[1], also known as Cross-marked Langur, is a monkey species in the Cercopithecidae family.

• It is native to the island of Borneo in Southeast Asia. Like all genus Presbytis, Sarawak surili has a short muzzle and poorly developed eyebrows.
• They have long front and relatively long hind legs, consistent with their preferred mode of locomotion, brachiation, and jumping.
• The Sarawak surili exhibits sexual dimorphism in coat color as the female has a brown coat with an underside lighter than the back.
• The male has a dark gray coat with a white underside.

• The Sarawak surili was once considered widespread but has declined significantly due to habitat and loss persecution.
• It is considered one of the rarest primates in the world. It has been listed as critically endangered by the IUCN.
• These primates live in troops of a single male with 5-17 females.
• The Sarawak Surili engages in 3 or 4 foraging and feeding fights throughout the day.
• They travel among the upper treetops, retreating at night to high ridges and trees to roost.