118 CLASS-BOOK OF ZOOLOGY. 



of oil, superior to that of the whale. The roe is salted, 

 and exported under the name of Caviar ; while the body 

 of the fish, preserved in different ways, furnishes a valua- 

 ble article of commerce. 



5 501. The number of Cod-fish caught during the 

 summer on the banks of Newfoundland, amount to more 

 than four hundred millions ; and the number of sailors 

 occupied in the business of fishing, is about twenty thou- 

 sand. 



QUESTIONS ON SECT. XXLX. 



496. What are Jugular Fishes ? 



497. What is the size, weight, color, and form of the Cod-fish, and 

 where is it found ? 



498. What advantage have the Cod-fisheries been to navigation and 

 commerce ? 



499. Why is the Cod-fish found in such astonishing numbers on the 

 Banks of Newfoundland? 



500. What use is made of the head, liver, body, and roe of the Cod- 

 fish? 



501. What is the number of Cod-fish caught on the banks of New- 

 foundland, and what the number of sailors occupied in fishing ? 



SECTION XXX. 



5th Order — Thoracic Fishes: (Thoracici.) 



§ 502. To this Order belong those Fishes which have 

 the ventral immediately below the pectoral fins ; as the 

 Flounder, Perch, Pilot-fish, and Mackerel. 



§ 503. The Flounder has a flat and very thin body, 

 colored on the upper and white on the under side, 

 with both eyes on the same side of the head. It inhabits 

 the deep seas in the northern parts of the globe. 



§ 504. Flounders not furnished with a swimming-blad- 

 der keep near the bottom of the sea, where they feed on 

 small fish, snails, and star-fish. They are much es- 

 teemed on account of their tender, white, and palatable 

 flesh. 



