Allenopithecus Lang, 1923 . Am. Mus. Novit., 87:1.

TYPE SPECIES: Cercopithecus nigroviridis Pocock, 1907 .

COMMENTS: Separated from Cercopithecus by Thorington and Groves (1970:638), Szalay and Delson (1979), and Groves (1989).