Stachycolobus zenkeri Matschie, 1917

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, p. 157

Current valid name: Colobus satanas anthracinus (LeConte, 1857)

Holotype: ZMB 24209 (skull) / ZMB 11472 (skin), male, adult; Bipindi on the Lokoundje-River, Cameroon; collected by Zenker, October 1897.

Paratypes: ZMB 24217/24218, male, skin, skull; ZMB 24645, skin; ZMB 24219/24220, male, juvenile, skin, skull; ZMB 24441, male, skull; ZMB 24442, male, skull; ZMB 24440, male, juvenile, skull; ZMB 24221/24222, male, adult, skin, skull; all specimens from Bipindi at the Lokoundje River, Cameroon, collected by Zenker; ZMB 24443, Lokoundje River, Cameroon, collected by Langheld; still uncatalogued [placeholder no. 4323], female, skull, French Equatorial Africa, collector and date unknown; still uncatalogued [placeholder no. 4310], skull, locality, collector and date unknown .