Colobus (Tropicolobus) umbrinus Matschie, 1914

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, p. 343

Current valid name: Piliocolobus oustaleti (Trouessart, 1906)

Holotype: ZMB 17966/17967/17968 (= A. 108,14,178-180), male, skull, skin, skeleton; “Bungi am Sanga, zwischen Wesso und Ikelemba” [Bungi at Sangha River between Ouesso and Ikelemba], Republic of the Congo; collected by Escherich between 24–29 December 1913.

Paratypes: ZMB 17969/17970, female, skull, skin; ZMB 17971/17972, male, skull, skin; ZMB 17973, female, skin; all specimens from “Bungi am Sanga, zwischen Wesso und Ikelemba” [Bungi at Sangha River between Ouesso and Ikelemba], Republic of the Congo; collected by Escherich, 24–29 December 1913.