PLATE VI. 



Pleistocene Bears. 



Permanent Dentition 



(Natural size.) 



Fig 



1. 



2. 

 3. 

 4. 



U. arctos, Torbryan Caves, 



Torquay (Mus. of Pract. 



Geol., Jermyn St.). 



Left upper teeth seen from the inner side 

 Left lower teeth seen from the inner side 

 Left upper teeth seen from the outer side 

 Left lower teeth seen from the outer side 

 5. Grinding surface of left m. 3 of U. spelseus, Kent's Cavern, Torquay (Brit. 



Mus.). 

 ha. Grinding surface of left m. 3 of U. arctos, Torbryan, Torquay (Brit. Mus.). 

 6a. Left pm. 4.Z7. spelseus, mandible No. M. 5995, Cromer Forest Bed (Brit. 



Mus.). 

 6 6. LeftpmTl U. ferox (horribilis), mandible No. 22029, Grays, Essex (Brit. 

 Mus.). 



6 c. Flight pm. I- U. spelgeus, mandible from Bacton (Brit. Mus.). 

 6d. Right pm. 4 U. arctos, a recent skull, No. 96.4.27.1, from Jesso, Japan 

 (Brit. Mus.). All the teeth in fig. G are seen from the inner side. 

 a. Anterior cone. 

 h. Posterior cone, 

 c. Inner cusp or lobe. 

 (I. Anterior external cusp. 

 c. Outer tubercle. 

 In tig. ('), 1 =: anterior 



2 = middle 

 : > > = posterii 



f the small cusps referred to in the last column of 

 the table on p. 31. 



