Quadrupeds, What They Are and Where Found
"[...] Another very large tribe, containing in all as many as thirty species, and belonging exclusively to Africa, are the Guenons. They are closely allied to the colobus monkeys, but yet sufficiently different from them in habits and conformation to be classed into a separate genus. Most of the guenons inhabit the central regions of Africa; but they are not exclusively tropical, since several kinds belong to Kaffraria, and that region indefinitely called the Cape of Good Hope. The Macaco apes constitute another genus, which forms the link between the guenons and the baboons, or dog-headed monkeys. They are neither exclusively African nor Asiatic monkeys, since species of macacoes [...]".
