CARNIVOMA. 

 PINNIPEDIA. 



WATjRUS. 



269 

 TRWHECHID^. 



Genus Trichecus (LinniEus, 1766). 



Generic Character. — Limbs used as organs of support on land. No 

 external ear. Teeth in adult, inc. %, can. *j* , mol. | :} or \:\; canin 

 developed into huge tusks, molars truncated, single rooted. 



WALRUS. 



Trichecus rosmarus (Linnaeus). 



Specific CAaroc^er. — Greyish-brown, becoming lighter with age. Length 

 of adult, twelye to fifteen feet. 



Tnchecus rosmarus, LiNifiEUS, Syst. Sat. I. 49 (1766). 

 Bosmanis a/rcticus, Pallas, Zool. Eosso-Asiat. I. 269. 



Sea-horse of Sealers, MorsTc of Laps ; Avmk of Greenlanders and Eskimo. 



According to the arrangement here adopted, the 

 Walrus is regarded as the type of a distinct family, of 

 which it is the only known member. It may in many 

 respects be regarded as intermediate between those which 

 we have had under consideration, and the Eared Seals 

 (Otarida) of the Southern and Pacific Oceans, agreeing 



