The olive colobus monkey, also known as the green colobus or Van Beneden's colobus, is a species of primate in the family Cercopithecidae. It is the only species in the genus Procolobus, which formerl
Red colobuses are Old World monkeys of the genus Piliocolobus. It was formerly considered a subgenus within the genus Procolobus, which is now restricted to the olive colobus. They are closely related
Olive colobus
…Cercopithecidae. It is the only species in the genus Procolobus, which formerly also included other species that are now grouped in a separate genus Piliocolobus. Its English name refers to its dull olive upperparts. It is the smallest example of all colobine monkeys and is rarely observed in its natural habitat…