Keywords: PZSL1889Page448.png Rhinoceros bicornis Kilimanjaro Diceros bicornis michaeli <small>Zukowsky 1965</small> ™‚ en Adult male Eastern Black Rhinoceros horns of John C Willoughby specimen from Kilimanjaro with supernumary third horn from left lateral Proceedings of the Zoological Society of London http //archive org/details/proceedingsofgen89zool vol 1889 issue 4 http //archive org/stream/proceedingsofgen89zool page/448/mode/1up page 448 1889 published 1890 Professor Flower text PD-old-70-1923 PZSL 1889-4 Diceros bicornis anatomy Congenital diseases and disorders of animals mammals of Tanzania Nature of Kilimanjaro |