THE CARNIVORES 187 



on bivalved molluscs, shrimps, saiidwomis and starfishes, 

 Its functional dental formula is: 



I icipf.Mf. totalis. 



Ill the young', however, the dental formula is: 

 l|, Cj,P+m|. total 30. 



All the teeth are secondarily simple and retrogressed save 

 the enormous upper canines which are almost as long in the 

 female as in the male and are used by the animal in digging 

 up molluscs from the mud and in clambering over the ice. 



