118 ARCTIC ZOOLOGY. 



G. Blood-vessels. So also H. 

 I. High ridge, called the rump. 

 K. Synovial glands. 



FIG. 4. 



Transversed Section of the Tail. 



A. Skin. 



B. Blubber. 



C. Tendinous envelope. 



D. Blood-vessels. 



E. Cartilaginous body. 



The social haunts of the blubber whale appear to be 

 confined to the inland waters of Greenland ; which, being of 

 unascertained depth and extent, and sheltering the timid 

 and unoffending creature from the numerous enemies by 

 which he is persecuted, is anxiously sought after, when the 

 urgency of sexual appetite forces him not from this his 

 peculiar home. This properly refers to such as inhabit the 

 northern seas. How the animal is occupied during the 

 winter months, Avhether sunk in perpetual slumber, 

 which is probable, during that period, or more actively 

 engaged in feeding on the moUusca,* and such minute 

 animals of the crustaceous class as form his accustomed 



* For the figure of one, Clip Retusa, see Plate X., Fig. 2. 



