NO. I THE WHITE RHINOCEROS — HELLER 73 



PLATE 27 

 (About i/io natural size) 



Illustrating age differences in nasal boss, lachrymal breadth and persistence of 

 sutures in female skulls. 



Skulls arranged by age, the oldest at the top. 

 Fig. i. Ceratotherium simum cottoni, female, adult; from Rhino Camp, Lado 



Enclave; shot by Kermit Roosevelt, January 21, 1910. No. 164594. 



U. S. National Museum. 

 Fig. 2. Ceratotherium simum cottoni, female, old ; from Rhino Camp, Lado 



Enclave; shot by Col. Theodore Roosevelt, January 29, 1910. 



No. 164595, U. S. National Museum. 

 Fig. 3. Ceratotherium simum cottoni, female, immature ; from Rhino Camp, 



Lado Enclave ; shot by Col. Theodore Roosevelt, January 10, 1910. 



No. 164587, U. S. National Museum. 

 Fig. 4. Ceratotherium simum cottoni, female, immature ; from Rhino Camp. 



Lado Enclave; weathered skull. No. 164599, U. S. National 



Museum. 

 Fig. 5. Ceratotherium simum cottoni, female, immature ; from Rhino Camp, 



Lado Enclave; shot by Col. Theodore Roosevelt, January 15, 1910. 



No. 164590, U. S. National Museum. 



