132 



THl;: DFA'THH OF TIIF, SF.l. 



Grreenland, and Loffoten. There can Ijc little doubt 

 that this especially arctic character of the fauna is 

 maintained by the continual migration of arctic 

 species along with the arctic current indicated hj 

 the depressions in the lines of equal temperature. 

 Many S2:)ecies characteristic of the ' cold area ' Avere 

 not met witli lieyond its limits, owing doubtless to 

 the entire banking in and disappearance of the cold 

 Avater, and the obliteration of the arctic current 

 as such at the western opening of the channel 

 l)etween the Ff'eroe banks and the Hel^rides. 



TiiF. all^*^;Rxll 



rsr,, Tiir)nsr7 \vn. 



