NO. I THE WHITE RHINOCEROS HELLER 75 



PLATE 29 



(About 1/13 natural size) 



Illustrating form in mandibles arranged by age under the sexes 



Ceratothcrium simum simum from South Africa 



Fig. 1. Male, adult. No. 51. 12.23. 1., British Museum. 



Fig. 2. Male, adult. Skeleton in gallery of paleontology at British Museum. 



Fig. 7. Female, old. No. 52.12.9.1., British Museum. 



Ceratothcrium simum cottoni from Rhino Camp, Lado Enclave 



Fig. 3. Male, adult ; shot by Kermit Roosevelt, January 20, 1910. No. 164553, 



U. S. National Museum. 

 Fig. 4. Male, adult ; shot by Col. Theodore Roosevelt, January 15, 1910. 



No. 164635, U. S. National Museum. 

 Fig. 5. Male, immature ; shot by Kermit Roosevelt, January 13, 1910. 



No. 164589, U. S. National Museum. 

 Fig. 6. Female, immature ; weathered. No. 164599, U. S. National Museum. 

 Fig. 8. Female, old; weathered. No. 164597, U. S. National Museum. 

 Fig. 9. Female, old ; shot by Kermit Roosevelt, January 19, 1910. No. 164592, 



U. S. National Museum. 

 Fig. 10. Female, old ; shot by Col. Theodore Roosevelt, January 29, 1910. 



No. 164595, U. S. National Museum. 

 Fig. 11. Female, immature; shot by Col. Theodore Roosevelt, January, 10, 



1910. No. 164587, U. S. National Museum. 

 Fig. 12. Female, immature; shot by Col. Theodore Roosevelt, January 13, 



1910. No. 164590, U. S. National Museum. 



