286 



COMPARATIVE ANATOMY OF THE TEETH. 



being remarkable for their " extraordinary size, shape, and 

 direction." This is best illustrated in the wild boar, where 



FIG. 78. A 



they curve forwards, outwards and upwards. The molars 

 are regarded as complex in structure as those of the ele- 

 phant, while the incisors vary in number in the several 

 genera. The usual number of teeth is set down at forty- 

 four. To both jaws on either side there are, incisors 3, 



FIG. 78, A represents the Permanent Teeth of the Hog. lnt,2m, 3m, 1st, 2d 

 and 3d Molars. lp, 2p, 3/>, 4p, 1st, 2d, 3d and 4th Premolars. li, 2i, 3i, 1st, 

 2d and 3d, Incisors, c Canine teeth. 



FIG. 78, B represents the Deciduous and Permanent Teeth of the Hog. The 

 figures and letters point so distinctly to the different kinds of teeth, as to require 

 no further explanation. 



