Ant333y1y lecture #4 review of living primates & systematics: crarrhini. Two superfamilies: cercopithecoidea narrow nose and palate, tail present, hominoidea broad nose and palate, tail absent. Divided into five groups: macaques, mangabeys, baboons, mandrills & drills, guenons, macaques. Widest distribution of any living primate genus used in research. Range in body size from 2. 6 kg 16 kg. Some larger species (m. thibetana) are more folivorous than smaller species (m. silenus). Free of viruses that other monkeys have: mangabeys. Large (5. 2 kg 11 kg) forest-living monkeys found in africa. Cercocebus spp. are more terrestrial whereas lophocebus spp. are more arboreal. Range in size from 9. 9 kg 30 kg. All species are sexually dimorphic in body size and canine size. They have long molars and broad incisors. They have a long snout & pronounced brow ridges. Their limbs are nearly equal in length: mandrills & drills. Large (~ 30 kg) forest monkeys from western africa.