546 



3265. The fore part of the lower jaw, with the incisors, canines and premolars, of a 

 Wild Boar (Sua Scrofa). 



It shows the effects of the unchecked growth of the lower canines through some defect in 

 the upper ones. The points of both the lower canines, following the curve impressed upon 

 them by the shape of the socket, have re-entered the mouth, piercing the integument and the 

 substance of the jaw itself, the apex of the right tusk projecting forwards on the inner side of 

 the base of the same tusk, whilst the apex of the left tusk presses against the more advanced 

 extremity of the right tusk, where it is buried in the substance of the bone. This is the 

 original specimen figured by Cheselden in his ' Osteographia.' It is entered in the Catalogue 

 of Malformations as No. 133. 



Hunterian. 



3266. The skeleton of a Hog or castrated Boar, of a domesticated breed (Sus Scrofa). 



The vertebral formula is : 7 cervical, 14 dorsal, 5 lumbar, 4 sacral : the caudal series is 

 incomplete. The same vertebral characters are repeated in this skeleton as in No, 3252. In 

 the last four dorsals the base of the diapophysis is perforated vertically, close to the orifice 

 for the exit of the nerve in the neural arch. 



Mm. South. 



3267. The skull of a Boar (Sus Scrofa). 



From its size and the elevation of the occiput it appears to have belonged to one of the 

 domesticated breeds : many of the teeth are wanting. 



Hunterian. 



3268. The skull of a young castrated Boar (Sus scrofa), mutilated at both extremities. 



Hunterian. 



3269. The skull of a young Boar, of the domesticated variety. 



The skull is mutilated and the dental series is deficient : the last molar teeth are just 

 appearing. 



Hunterian. 



3270. The skull of a younger Boar. 



It has not acquired the last two molars, but the premolars of the lower jaw are in place. 

 The occipital bone is wanting. There are indications in the interior and other parts of the 

 skull, that this young Boar had been fed with madder. 



Hunterian. 



3271. The skull of a Boar of a domesticated breed (Sus Scrofa). Purchased. 



3272. The skull of a Sow of a domesticated breed (Sus Scrofa). 



It is characterized by the inferior development of the canines and the concomitant diminu- 

 tion of the extent of the temporal fossae. The order of appearance of the grinding teeth is 



