Mandrillus
A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, comprising two species: the drill (M. leucophaeus) and the mandrill (M. sphinx). They are usually found in thick rainforest and have a gentle disposition despite their ferocious reputation. Some authors consider Mandrillus a subgenus of PAPIO.
Papio
A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, consisting of five named species: PAPIO URSINUS (chacma baboon), PAPIO CYNOCEPHALUS (yellow baboon), PAPIO PAPIO (western baboon), PAPIO ANUBIS (or olive baboon), and PAPIO HAMADRYAS (hamadryas baboon). Members of the Papio genus inhabit open woodland, savannahs, grassland, and rocky hill country. Some authors consider MANDRILLUS a subgenus of Papio.
Cercocebus
Monkey Diseases
Theropithecus
A genus of Old World monkeys of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, that inhabits the mountainous regions of Ethiopia. The genus consists of only one species, Theropithecus gelada.