PELAGIC ANIMAL LIFE 



647 



from which we possess definite information as to the occurrence The herring. 

 of herrings, gadids, and Sebastes over deep water. Most of the 



Fig. 482.— Animals caught over great depths in the Norwegian Sea. 

 The isobaths represent depths of 100, 200, and 500 fathoms. 



(•) Cyclopterus. 



X Herrings. 



+ Cod. 



/\ Gadus vireris. 



O Sebastes. 

 Cephalopoda 

 ^\ Lamna. 

 ^ Acanthias. 



rn Haddoclc. 



J Aiiarfhicas. 



C Greenland sharl<. 

 ^ Macl<erel. 



herrings occur from the northern slope of the North Sea towards 

 Iceland. Only in two places elsewhere, between the Lofotens 

 and Jan Mayen, did we succeed in capturing herrings, and 



