658 



4046. The skull of a young male Brown Bear (Ursus arctos). 



The space between the last premolar and the canines is very short, especially in the upper 

 jaw, and shows the sockets of only two rudimental premolars in both the upper and lower 

 jaws. Although the mature dentition is in place, the elements of the occipital bone have not 

 coalesced : the interparietal is represented by a triangular process of the superoccipital : the 

 alisphenoid articulates with the parietal. 



Presented by Samuel Stutchbury, Esq. 



4047. The skull of a small Brown Bear (Ursus arctos). 



It is from an older individual than the preceding, and apparently from a female, being 

 little superior in size ; but the comparatively smaller proportions of the molar to the canine 

 teeth indicate a difference of sex. In the interspace between the last premolar and canines of 

 the upper jaw there are two rudimental premolars on both sides ; in the same interspace of 

 the lower jaw there is one premolar (p 1) close to the canine, and behind this, on the right 

 side, a very minute second premolar. The frontal region of the skull is elevated and very 

 convex. 



Mm. Brookes. 



4048. The bones of the left fore foot of a Bear, artificially articulated with each 

 other and with the distal epiphysis of the radius. Hunterian. 



4049. The bones of the right hind foot of the same Bear, artificially articulated. 



Hunterian. 



4050. The claws of the fore foot of a Bear. Presented by Samuel Stutchbury, Esq. 



Family Procyonida (Racoons and Coatis). 



Genus Procyon. 

 Dental formula :-i g, c |=1, p , m ^ =40. 



4051. The skeleton of the Racoon (Procyon Lotor}. 



The vertebral formula is : 7 cervical, 14 dorsal, 6 lumbar, 3 sacral ; there are 16 caudal, 

 but the series is incomplete. The last four dorsal and all but the last lumbar vertebrae have 

 anapophyses. There is no trace of clavicles. The inner condyle of the humerus is perforated. 

 One of the femora has been fractured and united, and is shorter and thicker than the other. 

 The fibula is characterized by three processes behind its distal end : the malleolar process is 

 very short, but plays upon a well-marked articular surface of the astragalus. 



Hunterian. 



