Keywords: PZSL1907Page126.png Okapia liebrechtsi <small>Major</small> Okapia johnstoni <small> P L Sclater 1901 </small> ™‚ en Transverse section through ossicone tip of male Okapi specimen in the Royal Museum for Central Africa a bone b lower transverse fissures c upper transverse fissures Proceedings of the Zoological Society of London http //archive org/details/proceedingsofzoo19071446zool vol 1907 issue 1 http //archive org/stream/proceedingsofzoo19071446zool page/126/mode/1up page 126 1907 H Grönvold PD-old PZSL 1907-1 Okapia johnstoni horns Collections of natural history in the Royal Museum for Central Africa |