CLASS-BOOK OP ZOOLOGY. 11*7 



QUESTIONS ON SECT. XXVHI. 



§ 490. What are Apodal Fishes? 



§ 491. What fishes are called Eels? 



§ 492. Where are Eels chiefly found, and what is their size and use ? 



§ 493. What is the size, color, and form of the Electric Eel, and where 

 is it found ? 



§ 494. What is the size, color, and form of the Sword-fish, and where 

 is it found? 



§ 495. On what does the Sword-fish feed, and what use is made of it ? 



SECTION XXIX. 



Aih Order — Jugular Fishes : (Jugulares.) 



§ 496. Jugular Fishes are those which have the ven- 

 tral in front of the pectoral fins ; as the Cod-fish, and 

 several others. 



§ 497. The Cod-fish, (Gadus Morrhua,) when full 

 grown, is five feet long, weighs seventy pounds, is ash- 

 colored above, commonly spotted with yellow, white be- 

 neath, and has more than one dorsal and anal fin. It is 

 found in the northern part of the world, between the 40th 

 and 66th degree of latitude. 



\ 498. The Cod-fish is such an extensive article of 

 commerce, that the Cod-fisheries, carried on principally 

 on the banks of Newfoundland by several nations, have 

 been the occasion of many improvements in navigation 

 and commerce. 



\ 499. The Cod-fish is found in astonishing numbers 

 on the banks of Newfoundland, whither it is attracted by 

 the great numbers of worms, crabs, and shellfish, pro- 

 duced in those sandy bottoms ; here also they are in the 

 vicinity of the polar seas, whither they return towards 

 winter to deposit their roe. 



\ 500. Much use is made of the Cod-fish. The head 

 is sometimes eaten fresh on the spot where the fish is 

 caught ; or it is dried, and used as food for cows, as in 

 Norway. From the livers are produced great quantities 



