Keywords: PZSL1907Page716.png Cercopithecus erythrogaster <small>Gray</small> Lagos Cercopithecus erythrogaster pococki <small>Grubb Lernould Oates 1999</small> en Nigerian White-throated Guenon in London Zoo 1907 Proceedings of the Zoological Society of London http //archive org/details/proceedingsofzoo19074471121zool vol 1907 issue 3 http //archive org/stream/proceedingsofzoo19074471121zool page/716/mode/1up page 716 1907 R I Pocock text PD-old PZSL 1907-3 Cercopithecus erythrogaster Mammals at London Zoo 1907 in London |