Rhinoceros sumatrensis: dissection of the side of the face. Figure 10 in Beddard, F.E.; Treves, F., 1889. On the anatomy of Rhinoceros sumatrensis. Proceedings of the Zoological Society of London 1889 January 15: 7-25, figs. 1-10
Beddard 1889 sumatrensis face dissection
