180 
caudal, slightly emarginated, has fifteen long rays and three 
short ones on each side ; the ventrals are rather small, and the 
pectorals rather long, and formed of thirteen rays. 
The upper parts are of an olive grey, with a broad longitudinal, 
silvery hand on the side ; lower parts white The inferior 
mandible is black, with its extremity red ; the eye is of a golden 
colour. Dorsal fin, obscure ; caudal of a light olive, having some- 
times an obscure tinge on its posterior extremity ; anal and 
ventrals of a light olive hue ; pectorals in part black ; and some- 
times covered by this colour, hut in other specimens it only ex- 
tends over their posterior part. 
This sort was first observed by Messrs. Quoy and Gaimard, at 
Western Port, during Captain d’TJrville’s Expedition. It is one 
of the commonest fishes in the Melbourne Market, during all 
seasons of the year, and is considered good food. It is equally 
common in Hobson’s Bay as at Western Port, and young speci- 
mens are often found in the brackish waters of the lower Yarra. 
It rarely exceeds II inches. 
A very young specimen, not more than an inch long, had its 
hack green and a brown spot on the top of the head ; the longi- 
tudinal band of the sides was of a most brilliant silver colour ; 
the lower jaw was entirely black. 
GONOEHYNCHIDiE. 
“ Head and body entirely covered witli spiny 
scales ; mouth with barbels. Margin of the upper 
jaw formed by the intermaxillary, which, although 
short, is continued downwards as a thick lip, situated 
in front of the maxillary. Adipose fin none ; the 
dorsal fin is opposite to the ventrals, and short like 
the anal. Stomach simple, without blind sac; py- 
loric appendages in small number. Pseudobran chice; 
air-bladder absent. Gill-openings narrow. 
“Southern temperate parts of the Atlantic and 
Pacific; Japan.” 
