410 



A MANUAL OF DENTAL ANATOMY, 



It has been pointed out by the late Professor Rolleston that 

 the canine tooth of the male anthropoid apes is a little later 

 in coming into place than in the female. Thus in the male 

 chimpanzee and orang, it is not cut until after the third 

 molars (wisdom teeth) are in place, whereas in the female 

 it follows the second, but precedes the third molars. The 

 sexual difference in the canine teeth is very well marked in 

 all the anthropoid apes, and its later eruption in the males 



FIG. 180 0). 



f Nat. Sir 



is explicable both upon the ground that, being a sexual 

 weapon, it is not needed prior to the attainment of sexual 

 maturity, and also that being of very large size its formation 

 might be expected to take a longer time. No such difference 

 pertains to the milk dentition, in which the order of eruption 

 is exactly that met with in man. 



Dr. Magitot (Bulletin de la Societe d'Anthropologie de 

 Paris, 1869) combats the idea that there is any difference in 

 the order of the eruption of the permanent teeth between 

 man and the anthropoid apes, but, while his observations 

 have been both careful and widely extended, he lays much 



C) Upper and lower teeth of an Anthropoid Ape (Shnia Satyrus, or 

 Orang Outan). 



