101 



of the fresh specimen is contained nine and a quarter times in 

 the same. 4th, that the diameter of the eye is only twice in the 

 muzzle : in the Australian sort it is sensibly more. 5th, that 

 the eye is near the superior profile of the head, and distant from 

 the lower one by twice its diameter : in the new sort this last 

 proportion is contained three times. 6th, that the European 

 sort is, when fresh, of a silvery grey, rather brown on the back, 

 and whitish below ; that the first dorsal, the pectorals, and the 

 ventral, were of a rather fine red, and the other fins of a reddish 

 brown : in the Australian fish the upper parts were of a fine 

 blue, changing to green ; the sides and lower parts of a dirty 

 white, rather silvery ; the dorsal, anal, and ventrals reddish ; the 

 pectorals white, with their extremity dark ; the prseoperculum 

 has no denticulations, but towards its angle there are some sinu- 

 osities or notches ; this may depend on age. 



The teeth on the upper jaw are of two sorts — 1st, an external 

 line of large conic ones ; they are rather curved backwards, and 

 placed at a considerable distance one from the other in rather an 

 irregular way ; they number about twelve on each side ; those in 

 front are the largest, and they become very small as they extend 

 backwards. Behind these is a band of villiform teeth, formed of 

 four or five very irregular series; these teeth are small, obtuse, 

 and directed backwards ; they are not so numerous in front as 

 towards the posterior part of the mouth, but a few larger ones 

 are seen in this part. At the lower jaw there is only the ex- 

 ternal line of large irregular teeth, fourteen or fifteen in 

 number ; at the anterior part there are two extra ones placed in 

 front of the others ; the inside of the mouth and the tongue 

 are smooth. 



The orbit is oblong, being one-fourth longer than its 

 breadth. 



The scales which cover the head are much smaller than those 

 of the body ; these are densely punctured, and have concentric 

 fines ; they are externally edged with a sort of a little Sciama 

 fringe. The lateral line runs over about sixty-eight scales, but 

 their oblique disposition renders it difficult to count them with 

 certainty. The head is four times in the total length ; the eye 

 yellow, with a narrow golden circle. 



