ICHTHYOLOGY. 37 



A. The Tunny fishery is carried on principally 

 on the coast of Sicily and in other parts of the 

 Mediterranean, in the spring, by means of very 

 extensive nets, spread in the direction in which 

 the fish are expected to come. As soon as the 

 shoal is discovered by a man stationed on some 

 lofty eminence, to have entered the farthest com- 

 partment of the nets, he gives a signal, the pas- 

 sage is drawn close, and the slaughter begins. 



Q. How are they disposed of ? 



A. Vast numbers of these fish are consumed 

 by the inhabitants of Naples and Sicily, from May 

 to October they are eaten fresh, but the rest of 

 the year salted ; the largest are cut in pieces and 

 barrelled up for sale. 



CHAPTER IX. 



Of Prickly finned thoracic .Fish (continued). 



Q. OF what Species is the genus Perca com. 

 posed ? 



A. In the genus Perca, are not less than forty 

 species, but not more than two require particular 

 notice 5 these are Perca Fluviatilig, and Perca 

 Lucioperca. 



Q. What is Perca Fluviatilis ? 



