Old World monkeys are primates in the family Cercopithecidae. Twenty-four genera and 139 species are recognized, making it the largest primate family. Old World monkey genera include baboons, red colo
Trachypithecus
…Trachypithecus is a genus of Old World monkeys containing species known as lutungs, langurs, or leaf monkeys. Their range is much of Southeast Asia (northeast India, Vietnam, southern China, Borneo…