154 



VERTEBRATA. PISCES. 



with numerous soft scales, which are wanting on the 

 head ; small, sharp teeth in the jaws and vomer, ar- 

 ranged in rows, like the points of a rasp ; gill-rays 

 seven. Almost all have two or three dorsals, and 

 one or two anals. They chiefly inhabit northern 

 seas, and particularly the North Atlantic. 



Morrhua,* the Cod. 



THE COD (Morrhua Vulgaris). 



The true Cods, including the Haddock, are dis- 

 tinguished by having three .dorsal fins and two anals, 

 and a fleshy beard hanging from the lower jaw. The 

 common Cod (M. Vulgaris) is certainly to be placed 



* A word of unknown derivation. 



