HABITS OF THE CODFISH AND HADDOCK. 455 



is long and narrow, and the viviparous eel-pout (Zoarces), the 

 cottoids or sculpins, and a number of allied forms, we come 

 to the hake (Merlucius bilinearis Gill), the haddock (Melano- 

 grammus aglefinus Gill, Fig. 413), and cod (Gadus morrhua 



Fig. 413. The Haddock, Melanogramrmes ceglefinm.From the American Nat- 

 uralist. 



Linn., Fig. 414), all of which extend northwards from Cape 

 Hatteras, the cod abounding on both sides of the Atlantic, 

 being a circumpolar fish. The cod does not, as formerly 

 supposed, migrate along the coast, but seeks the cool tempe- 

 rature to which it is adapted by gradually passing in the 



Fig. 414. The Cod-fish, Oadus morrhua. From the American Naturalist. 



early summer from shallow to deep water, and returning as 

 the season grows colder. It visits the shallow water of Mas- 

 sachusetts Bay to spawn about the first of November, and 

 towards x the last of the month deposits its eggs. About 



