FROM THE SIVALIK HILLS. 



197 



portion of it. None of the rest of tlie Bears have the last tubercular in the 

 upper jaw square, or without a crenulated spur added on to the rear of it. 



Our specimen of the lower jaw, Fig. 2, is deficient in the incisors and 

 in the protruded portion of the canine. It is broken off, just where the 

 latter emerges from its socket. The section of the imbedded portion of 

 the canine gives 1.6 inch of vertical dimension and .95 transversely. The 

 molars are six in number. The two anterior false molars and the last 

 tubercular have dropped out, but the sockets remain unobliterated. The 

 anterior false molar was close behind the canine, and there is not space 

 for another to have been inserted between. The second was close to the first 

 and almost in contact with the third false molar. This latter, like the 

 carnassier of the upper jaw is of large size, compared with the same tooth 

 of the other species, and distinctly three lobed ; which is another peculiarity, 

 and further supports the analogy shown by the upper carnassier with the 

 Hyaena, to the second false molar of which it bears a considerable 

 resemblance. The anterior and posterior lobes are small, the middle point 

 being chiefly developed. The antepenultimate or carnassier is so defined, 

 as to give no indication of form to notice except its length. The penulti- 

 mate or first tubercular molar is oblong. It is broader for its length than 

 generally holds in the genus, and the crown less complicated with tuber- 

 cles. Of the rear tubercular, the socket alone remains, the tooth having 

 fallen out. It is situated with considerable obliquity to the rest of the 

 series, in the root of the ascending portion of the ramus. The alveolus is 

 inconsiderable, and the tooth appears to have been comparatively small. 



The teeth in the fossil appear to have been thus : incisors : canines 

 false molars f,".: cheek teeth 1;^: in all 38. 



The size and form of the head bear out the specific distinction established 



by the teeth. No Bear, fossil or recent, attains the enormous size of our 



fossil, except the U/'siis spelteus, and the absence of any bulge in the 



forehead above the orbits at once distinguishes it from the latter. The 



mutilation of the cranium at the occiput, prevents an exact comparison of 



the length with that of the Ursus spelcsus. In the tables of the Ossemens 



A 2 



