Black-and-white langur
The black-and-white langur ("Presbytis bicolor") is a species of monkey in the family Cercopithecidae. It was formerly considered a subspecies of the Black-crested Sumatran langur, "Presbytis melalophos" (as "Presbytis melalophos bicolor") but genetic analysis revealed that these are separate species. Distribution. The black-and-white langur is native to the island of Sumatra in Indonesia. It is listed as data deficient by the IUCN.