AFRICAN RHINOCEROSES 



1067 



attains a greater length than in the common species. In the skull the extremity of 

 the lower jaw forms a much wider and shallower channel than in the R. bicornis, 

 and the structure of the upper cheek-teeth is different. These teeth resemble in 

 general structure those of the great Indian rhinoceros, having very tall crowns, 

 with flat grinding surfaces, no distinct buttress at the front outer angle, and the 

 outer portion of the middle valley cut off by a partition. They are, however, quite 

 peculiar among existing species, in having a large amount of cement investing the 

 interior and filling up the valleys of the crown. Moreover, the third molar in the 



BURCHEU/S RHINOCEROS. 



(One-thirtieth natural size.) 



Tipper jaw, instead of -being triangular in shape, closely resembles the tooth in front 

 of it; a peculiarity found elsewhere only among certain extinct hornless species. In 

 color Burchell's rhinoceros differs but little from the common species, the general 

 hue of both being a slaty gray. 



In height this rhinoceros is known to reach six and one-half feet at 

 tfae shoulder; and it j s sa j d ^ ai specimens were formerly obtained 

 which slightly exceeded these dimensions. As regards length, our information is 

 far from satisfactory. It has been stated that the length may be something between 



Dimensions 



