88 THE EDIBLE FISHES OF NEW SOUTH WALES. 



Like others of the Yellowtail family, this species deterio- 

 rates very rapidl}" after death, if high temperatures prevail, 

 and unless it is gutted. It takes the smoking process well, 

 and large numbers are preserved by this means. 



The Trevally is of a beautiful silvery-white on the sides, 

 and bluish above, with golden reflections towards and on the 

 head. 



Blue Trevally {Caranx hippos). 



This is a large fish, attaining apparently a length of 

 about 3 feet. Very little evidence in regard to the occurrence 

 of this fme species in our waters has been forthcoming so far, 

 and it is looked upon as being scarce; but as I have pointed 

 out in the case of others among our food-fishes, of a more or 

 less pelagic or oceanic nature, there has been so little outside 

 work carried out, that we are not justified in accepting present 

 information as conclusive — indeed, far from it. Future in- 

 vestigation will, very probably, I think, reveal the presence 

 of the Blue Trevally in our nortliern waters, at least, in 

 considerable numbers. 



This is the " Cavalla " or " Jack " of the United States, 

 where, according to Jordan and Evermann, it is the most 

 abundant, and one of the most valuable of the genus. 



Noble Trevally {Caranx nobilis). 



I have not met with this Trevally, which was described 

 by Sir William Macleay in 1881. The description was founded 

 on a specimen, captured in Port Jackson, which measured 

 24 inches. 



Silvery Moon-Fish {Caranx ijallus). 



Plate LVIII. 



This species, which is well known as a food-fish in certain 

 tropical parts, has only recently been recorded by me from 

 New S.outh Wales waters, the example upon which the record 

 was based having been captured at Evans River (in salt 

 water), on the northern portion of our coast. This example 

 measured about 18 inches, but the species is known to reach 

 a length of not less than 3 feet. 



