URSUS (hy^narctos) sivalensis. 



323 



The incisors as indicated by the alveoli were six, and the 

 external one of each side larger than the others, as is usual 

 in the family. The canines are of great size. The right one 

 is entire : its point is worn off, indicating the animal to have 

 been more than adult, and there are also stripes of wear both on 

 its posterior and inner sides (fig. 2). It is 1-4 inch in length in 

 antero-posterior diameter at the base, and 1 inch transversely. 

 The socket of the first false molar^ is close behind the canine, 

 that of the second is near the anterior one, and the tooth appears 

 to have been tivo-fanged.^ There can have been no other false 

 molars besides these two, the sockets of which are close 

 together, and occupy the interval between the canine and 

 carnassier, which is inconsiderable for the size of head, 

 being but 1-2 inch in length. 



The three rear molars present marked peculiarities. The 

 antepenultimate or carnassier is of very large size ; it slightly 

 exceeds both of the rear teeth in length, and is about half an 

 inch longer than the corresponding tooth of the Ursus spelwus. 

 Instead of having but two points like the rest of the Bears, it 

 has three,^ the anterior lobe being well developed as in the 

 higher Carnivora ;* and the tubercle of the inside, instead of 

 being to the rear as in the other species, is advanced forwards 

 opposite the middle lobe. It has altogether a great analogy 



' Note rn pencil by Br. F. — ' This pre- 

 molar in all the true Bears is described 

 as having but a single fang, and in this 

 view the two alveoli would imply two 

 premolars, here reckoned as one.' — [Ed.] 



^ Underlined in pencil by Dr. F. — [Ed.] 

 ^ Underlined in pencil by Dr. F. — L^^-l 

 ^ Note in ■pencil by Dr. F. — ' Such as 

 the Hytena.' — Ed.] 



Y 2 



