Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Cercopithecidae Gray, 1821 - Old World monkeys Subfamily Colobinae Jerdon, 1867 Genus Colobus Illiger, 1811 - black and white colobus monkeys Colobus guereza Rüppell, 1835 - guereza