May 1897. East African Collection of Mammals — Elliot. hi 



At least this I imagine to be the case, for young pigs that I saw, 

 and some of which I killed, roaming about without any adults near, 

 and apparently quite independent of a parent's watchfulness and 

 care, were at least over a year old. It is difficult to estimate the 

 number of young usually found in a litter, but I should suppose 

 from four to eight would be nearly correct. Many fall victims to 

 carnivorous beasts, leopards being especially fond of pork, so 

 that the species is kept from undue increase. 



This species is evidently the PhacocJuTnis cvliani, Riipp, Atlas 

 I, pi. 25.=Sus africanus, Gm. Syst. Nat., 1788, p. 220, having 

 two upper and four lower incisors. There is, however, a curious 

 fact about these teeth. The old male and female both have these 

 incisors well exhibited in both jaws, as has also the smallest 

 specimen only a few months old. But of the three other examples 

 over a year old, two exhibit the lower incisors just emerging, but 

 no indication of any in the upper jaw, while the third gives no 

 indication of any in either jaw. As this last and one of the others 

 were killed out of the same sounder, the idea of two species can 

 not be for a moment entertained. But it would seem to show 

 that the presence or absence of incisors is not an infallible test 

 by which to determine the species. The skull of the boar, of 

 which three views are given, is, in its superior outline, very high 

 at the occiput, and descends rapidly to the posterior end of the 

 nasals, these possessing a gradual curve throughout their length. 

 The views show clearly the incisors in both jaws. The skull is 

 very massive and heavy. 



INXHES. 



Total length from occiput to end of nasals 16. 50 



Length of premaxilla 5.55 



" " nasals Q . 40 



Anterior rim of orbit to free end of premaxilhe 11 .40 



Posterior end of nasals to fronto-parietal suture 4.10 



Width of skull between orbits 4-35 



" " '■ at anterior rim of orbits (outline of molars) 7.80 



Extent of upper premolars i . 40 



" " " molars i .80 



" " lower premolars i . 15 



" " " molars i .go 



Length of upper tushes between tips 10.00 



" " " " extreme outside measurement 10.65 



" " " " on outside curve cS.25 



" " lower tushes between tips i o . 40 



" " " " on outside curve 4.80 



