12 



ON THE ANATOMY OF THE 



ened surface, and the latter is represented by a mi- 

 nute point on the temporal bone. 



The ossa nasi, are nearly similar in shape to those 

 of man ; but they are placed perfectly fiat on the 

 face, so as not to be visible in a profile of the 

 skull. In the Baboon, there is only one proper 

 nasal bone, which is applied flat to the upper 

 part of the nose ; and the cavity formed by the 

 removal of the soft parts of the nose is oval ; where- 

 as in the Orang, it is circular ; and it is triangular 

 in man. 



The ossa maxillae superioris, project considerably 

 beyond even the remarkable orbitar processes of the 

 frontal bone, and bring the form of the lower part 

 of the face more nearly to that of quadrupeds. We 

 found the ductus incisivus; which occasionally occurs 

 in man, is very distinct in the rib-nosed baboon, 

 and is constantly found in the larger quadrupeds. 

 The teeth strongly resemble the human ; but the 

 alveolar processes of the upper jaw, project the cut- 

 ting teeth more forward. The incisores are strong, 

 and placed a little remote from the canine teeth. 

 When the mouth is shut, the canine teeth lock in- 

 to each other ; those of the lower passing before 

 those of the upper-jaw. The molares are four on 

 each side of the two jaws, but the two last are still 

 lodged in the bone. The lower jaw is stronger and 

 narrower than in man. It is thicker toward the' 

 symphysis, and has a shorter coronoid process. 



