African green monkey and Guenon monkey

African green monkey noun - Common savannah monkey with greenish-grey back and yellow tail.

Guenon monkey and African green monkey are semantically related. In some cases you can use "Guenon monkey" instead a noun phrase "African green monkey".

Guenon monkey noun - Small slender African monkey having long hind limbs and tail and long hair around the face.

African green monkey and guenon monkey are semantically related. Sometimes you can replace phrase "African green monkey" with "Guenon monkey", this phrases are similar.