65G 



MR. P. L. SCLATER ON THE RHINOCEROSES 



is much variation in the colour of both forms, and these terms do not well distinguish 

 them — there can be no question that our specimen belongs to the latter category. The 

 long extensile upper lip of our animal and the shape of its horns at once show that 

 it is not referable to R. simus, and that it belongs to the form of which the species 

 (if there really be more than one) are commonly known as R. biconiis. The late Sir 



Fis. 



Head of li. hicornis, from specimen in Brit. Mus. 



Andrew Smith, an excellent authority on African mammals, was the first to separate 

 a species from R. hicornis under the name R. keitloa'^, distinguished principally by the 

 two horns being equal or nearly equal in length, whereas in R. hicornis " the posterior 

 in neither sex is ever much beyond a third of the length of the anterior." On 

 examining the stuflfed specimens of these two supposed species in the gallery of the 

 British Museum these differences are most satisfactorily apparent, as will be seen by 

 the sketches which I exhibit (figs. 7 & 8). 



' See Illustr. Zool. S. Afr., Mammals, pi. 1. 



