Notice of the Cranium of a Manganya Negro. 225 



to 77. In these dimensions of length, height, and circum- 

 ference, the skull is somewhat within those given by Mr 

 Busk as the mean in the intratropical negro. But the small 

 size of the cranium, and the absence of any strongly-marked 

 lines and ridges, are probably, in part at least, due to the 

 youth of the individual from whom it had been obtained. 



The teeth, in the upper jaw more especially, present some 

 features of interest. Throughout the series, but more 

 strongly marked in the incisive region, the intervals be- 



Manganya Skull— Fig. 2. 



tween the different teeth are much greater than one is 

 accustomed to see in the human skull, amounting to as 

 much as the tenth of an inch, but it must be noted that 

 the diastema between the canine and lateral incisor is not 

 greater than that between the lateral and central, or the two 

 gentral incisors; and in this respect it presents an im- 

 portant difference from that which gives so characteristic a 

 (feature to the dental series in the ape, in which the diastema 



