A Monkey is a primate. Great Apes are primates. Three of the four species of Great Apes live in Africa. Apes are primates too. Gibbons and Siamangs.
Gibbons are also from Asia.
These are the kinds you see in zoos today. The have a narrower face and broader chest than the western lowland gorillas and shorter hair like their western cousins, but they are slightly larger. They live mostly in eastern Zaire. There are NO mountain gorillas in captivity today. Eastern Lowland, Western Lowland, Mountain.