70 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



PLATE 24 



(About Y& natural size) 



Illustrating milk dentition 



Fig. i. Ceratothcrium simum cottoni, male, immature; four milk molars in 

 use, second about to be shed, but the first persisting and not re- 

 placed ; from Rhino Camp, Lado Enclave ; shot by Kermit Roose- 

 velt, January 13, 1910. No. 164589, U. S. National Museum. 



Fig. 2. Ccratotherium simum cottoni, female, immature ; last milk molar only 

 in use; from Rhino Camp, Lado Enclave; shot by Col. Theodore 

 Roosevelt, January 10, 1910. No. 164587, U. S. National Museum. 



Fig. 3. Ccratotherium simum cottoni, female, immature; four milk molars in 

 use, second about to be shed, but the first persistent and not 

 replaced by a premolar ; from Rhino Camp, Lado Enclave ; shot 

 by Col. Theodore Roosevelt, January 15, 1910. No. 164590, U. S. 

 National Museum. 



