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.
