Black-and-white langur

The black-and-white langur, Presbytis bicolor, is a monkey of the family Cercopithecidae, the Old World monkeys, that is native to the island of Sumatra in Indonesia. It was formerly considered a subspecies of the Black-crested Sumatran langur, Presbytis melalophos, but genetic analysis revealed that these are separate species. The IUCN lists it as data deficient, which means that too little is known about its numbers and range to judge its risk of extinction. The English Wikipedia list of Old World monkeys records it as a forest species that feeds on fruit, seeds and leaves.