PLATE XXV. 

 Fig. 1. — Top Jaw about 26 years. 



The groove extends only about f from the bottom of the corner tooth. 

 Fig. 2. — Loiver Jaw about 26 years. 



Central teeth longer across than they are in width. 

 Fig. 3. — Loiver Jaiu about 26 years. 



Note the extent of gum between the 

 teeth, owing to the narrowness of their 

 bases, also the length of the teeth. 



