FROM THE SIVALIK HILLS. 



195 



jaw, has but two lobes or points, along its length ; and the tubercle of its 

 inner side is placed opposite the rear lobe. The two rear molars are 

 oblong, and the last one has the additional developement of a crenulated 

 spur or heel. The higher Carnivora differ widely in these characters 

 from the Bears ; their carnassier teeth being three lobed, and the tubercle 

 of the inside being placed forwards, as in the Cats and Hyaena ; while the 

 rear or tubercular teeth are reduced in number, and are rudimentary. 



We shall now proceed to the teeth of the fossil, which in many respects 

 deviate from the type of the genus, and approximate that of the more perfect 

 Carnivora. Along with the dimensions we annex those of the Ursus 

 Spelcuus and Ursus Tihetianus for comparison.* 



Molars, Upper Jaw. 



Ursus 

 Sivalensis. 



Ursus 

 Spelceus. 



Ursus 

 Tihetianus. 



Inch. 



Metre. 



Inch. 



Metre. 



Inch. 



Metre. 





1.1 



.028 



1.84 



.048 



1.1 



.028 





1.2 



.03 







() 



.015 





1.2 



.03 



1.23 



.031 



0.8 



.02 





1.2 



.03 







0.55 



.013 





1.3 



.032 



0.83 



.021 



0.5 



.012 





0.85 



.022 







0.35 



.008 



Molars, Lower Jaw. 





















1.03 



.026 



0.65 



.017 













0,48 



.012 





J. 15 



.029 



1.30 



.032 



0.8 



.02 



Width of ditto, 



0.75 



.019 







0.45 



.011 





1.35 



.0335 



1.32 



.033 



0.8 



.02 



Width of ditto, 







• * « • 





0.38 



.095 





0.9 



.023 





• • • • 



0.4 



.01 



Width of ditto, 



0.5 



.012 







0.25 



.006 



The incisors as indicated by the alveoli were 6, 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 



* In the Osseniens Fossiles, Cuvier docs not give the dimensions in width of the teeth of 

 the Ursus Spelceus. We have to regret this omission, as one of the most marked characters about 

 our fossil is the great width of the molars ; and wcliavc no other source to refer to regarding 

 the Ursus Spcheus, besides the Osseniens Fossiles. 



