Colobus (Guereza) escherichi Matschie, 1914

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, p. 342

Current valid name: Colobus guereza occidentalis (de Rochebrune, 1887)

Holotype: ZMB 17964 / 17965 (= A. 108, 14, 183), skull, skin; Gombe [ Ngombe] at Sanga [ Sangha River], Republic of Congo; collected by Escherich on 29 December 1913.