PISCES — TUNNY. ..PILOT FISH. 749 



employ in the whole, a capital of nearly two hundred thousand pounds. The 

 mackerel fishery on the coast of New England is very productive. It is 

 carried on in small schooners of twenty or thirty tons. 



THE TUNNY* 



Retains not only the character, but the habits of the mackerel. They resort 

 in vast shoals to the Mediterranean, at certain seasons, and, from the earliest 

 periods of history, have constituted a considerable branch of commerce there. 

 Tne tunny, however, differs greatly from the mackerel in size. One which 

 Mr Pennant saw at Inverary in Scotland, weighed four hundred and sixty 

 pounds. It was seven feet ten inches in length, and the circumference in 

 the largest part was five feet seven, and near the tail only one foot six. The 

 pieces, when fresh cut, appear like raw beef but when boiled turn pale, and 

 have something the flavor of salmon. 



THE PILOT FISH2 



Has a long and banded body, with four loose spines on the back ; a com- 

 pressed head, rounded off in front ; a small mouth, the jaws of which are 

 of equal length, pnd furnished with small teeth. The palate has a curved 

 row of teeth, and the tongue has teeth all along. 



This species is found in the Mediterranean, Southern ocean, East Indies, 

 and Cape of Good Hope. It grows to a foot and a half in length, and 

 derives its name from being commonly seen with the shark, to which it 

 appears to point out its prey. The circumstance of its guiding the shark, 



1 Tkynnus vulgaris, Cuv. _ This genus has a projecting ridge on each side of the tail, 

 and a row of pointed teeth in each jaw ; anal and second dorsal fins subdivided ; first 

 dorsal fin prolonged almost to the second, and sometimes touching it. 



2 Cenlronotus ductor, Lacep. This genus has one dorsal fin with spines before ; ventral 

 fins supported, as in general, by some rays, the most of which are short; sides of the tail 

 cannated ; anal shorter than the dorsal fin, with sometimes free spines. 



63* 



