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.