NO. I THE WHITE RHINOCEROS HELLER 6j 



PLATE 21 



(Fig. i about 1/8 natural size) 



(Figs. 2, 3 and 4 about 1/9 natural size) 



Illustrating subspecific character in simum of larger teeth than cottoni. 

 Skulls of simum photographed with short focus lens and not strictly com- 

 parable with those of cottoni, which were taken by a lens having great depth 

 of focus. This distortion is well shown in simum by the carrying forward of 

 the premaxillse as far as the tip of the nasals. 



Fig. 1. Ceratotherium simum cottoni, female, old; from Rhino Camp, Lado 

 Enclave ; shot by Kermit Roosevelt, January 19, 1910. No. 164592, 

 U. S. National JVluseum. 

 Fig. 2. Ceratotherium simum simum, female, adult; from South Africa; col- 

 lected by Brandt; exact locality not known. No. 52.12.9.1., British 

 Museum. 

 Fig. 3. Ceratotherium simum simum, male, adult; from South Africa; col- 

 lected by Stephens; exact locality not known. No. 51. 12.23.1., 

 British Museum. 

 Fig. 4. Ceratotherium simum simum, male, adult; from South Africa; exact 

 locality not known ; specimen from a mounted skeleton on exhibi- 

 tion in the gallery of paleontology in the British Museum. 



