Dr. J. E. Gray on Pigs and their Skulls. 435 



upwards and outwards. The sheath of the upper canine of 

 the males is spread out, with a ridge or crest across its 

 upper surface ; that of the females is often slightly bent up at 

 the end. y 



Wild Swine. Ears moderate, hairy, 



1. EUHYS. 



Head elongate, twice as long as high at the occiput. Cheeks 

 and throat covered with long projecting hairs. Lower canines 

 of the males elongate, slender, convex on the sides and rounded 

 in front. The front false grinders near the base of the canines 

 separated from the other grinders by a rather broad diastema. 

 Sheath of the upper canines in the males with an elongated 

 ridge, which has a straight top. 



Euhys harbatus. 

 Sus barbattts, Miiller. 



* 2. AULACOCHCERUS. 



Head conical, about once and a half as long as high at the 

 occiput. Male, the upper canines keeled in front with a 

 very high keel across the base of the sheath ; the lower 

 canines triangular, flat on the sides, and keeled in front. 



Aulacochoerus vittatus. 



Head, body, and legs covered with black bristles ; bristles 

 of forehead and neck white-tipped ; streak round angle of 

 mouth and lower part of cheek white. 



Sus vittattis, Miiller. 



3. Dasych(erus. 



Head elongate conical, more than once and a half the length 

 of its height at the occiput. Nose with a large flat-topped 

 wart on each side over the angle of the mouth, with a tuft of 

 elongate pale bristles on the lower part of each cheek. Males 

 with a compressed ridge across the sheath of the upper canines ; 

 lower canines triangular, flat on the outer side and keeled in 

 front. Black, with a tuft of yellow hair on each side of the 

 jowl. 



Dasychoerus verrucosus. 



Head nearly twice as long as high at the occiput. Black, 

 underside and front of thighs pale. 

 Sua verrucosus, Miiller. 



28* 



