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 
central 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 
