Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Cercopithecidae Gray, 1821 - Old World monkeys Subfamily Cercopithecinae Gray, 1821 Genus Lophocebus Palmer, 1903 1 Lophocebus albigena (Gray, 1850) - gray-cheeked mangabey