1885.] 



MR. .T. B. SUTTON ON H"XPERTROPHY. 



Fig. 3. 



437 



Tlie dental series of a Wild Boar, sbowing the singular curve of 

 the upper canine. 



Fis. 4. 



Head of Wart-Hog, Phacocharvs aiJiiopicus, J, showing a greater degree of 

 curTature of the upper canine than that presented hy the Wild Boar's 

 tusk. 



FiV. .5. 



Skull of Bahinisa, shcvviug the most exnggerated stage of curved canines. 



Proc. Zool. Soc— 1885, No. XXIX. 29 



