518 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



the silvery sides well defined ; tlie first six or seven dorsal rays 

 are deeply tipped with black. Length nine inches. 



Kockingham. Bay (Mr. E-amsay's collection). 



Q-enus Kurtus, B1. 



Body compressed, oblong, covered with exceedingly small scales; 

 cleft of mouth wide, oblique, with the lower jaw prominent. 

 Praeoperculum denticulated. One dorsal fin with the spines 

 rudimentary ; anal with two spines ; ventrals well developed, 

 between them a horizontal backwards directed spine. Yilliform 

 teeth in the jaw, vomer and palatine bones. Seven branchiostegals; 

 pseudobranchiee none. Air-bladder present, enclosed by the ribs 

 which are dilated, convex, forming rings with each other. 



East Indian Seas. 



325. Kurtus Gulliveri, Casteln. 

 Proc. Linn. Soc. New South Wales, Vol. IL, 233. 

 Norman Eiver (fresh water). 



Division lY. ACANTH. POLYNEMIFOEMES. 



Two rather short dorsal fins, somewhat remote from each other ; 

 free filaments at the humeral arch below the pectoral fins ; head 

 with the mucif erous system well developed. One family only. 



Family XII. POLYNElVnD^. 



Characters of the Division. 



Genus Polynemus, L. 



Two separate dorsal fins, the first with seven or eight spines, 

 all feeble ; the soft dorsal and anal nearly equal. Bands of 

 villiform teeth in the jaws, on the vomer, the palatine and 

 pterygoid bones. Prseoperculum serrated. Scales moderate or 



