Guenon

Monkey

The guenons are the genus Cercopithecus of Old World monkeys. Not all the members of this genus have the word "guenon" in their common names, and because of changes in scientific classification, some monkeys in other genera may have common names that do include the word "guenon". Nonetheless, the use of the term guenon for monkeys of this genus is widely accepted.

http://en.wikipedia.org/wiki/Guenon