Cercopithecus ruandae Matschie
No valid description published or available
ZMB: 13595/13596, male, skull, skin; Russissi, Deutsch Ost-Afrika [ Ruzizi River, border between Rwanda and Democratic Republic of the Congo]; collected by Wirbel, undated.
Comment: The name Cercopithecus ruandae Matschie is only found on a label marked by Matschie himself with a type asterisk. However, no manuscript is available and a valid species description has never been published.