OSTEOLOGY AND ARTHROLOGY 



123 



tensive surfaces of insertion for this rnuscle, are sure proofs 

 furnished by the skeleton of the occasionally enormous de- 

 velopment of the muscles of mastication. 



In the carnivora, a rather strong process, which is directed 

 backwards, occupies the angle of the inferior maxilla ; it is, 

 accordingly, situated below the region of the condyle. 



The teeth which the jaws carry vary in number, and even 

 in appearance, according to species ; it is useful to note their 

 differences. In order to establish the nature of these latter 

 more effectively, we will first recall the fact that in man the 



F.Ji CuyC[\ 



17 U 



Fig. 64. — Skull of the Hare : Left Lateral Aspect. 



I External occipital protuberance ; 2, occipital condyle : 3, parietal 

 bone; 4, frontal bone; 5, orbital process; 6, orbital cavity; 7, zygo- 

 matic process ; 8, external auditory canal ; 9, superior maxillary bone ; 

 10, intermaxillary or incisor bone ; 11, nasal bone ; 12, anterior opening 

 of the nasal fossa; 13, malar bone; 14, inferior maxillary bone; 15, 

 condyle of the inferior maxillary bone ; 16, incisor teeth ; 17, molar 

 teeth. 



teeth, thirty-two in number, are equally distributed between 

 the jaws, and are divided into incisors, canines, and molars, 

 of which the arrangement is thus formulated : 



32. 



* I.e., i, incisors ; c, canines ; m, molars. 



