BY W. MACLEAY F.L.S. 511 



Genus Trachichthys, Shaw. 



Muzzle very short, rounded, not protruding ; cleft of the mouth 

 oblique ; chin prominent ; eye large. Exceedingly fine villiform 

 teeth in both jaws, on the vomer, and on the palatine bones. 

 Eight branchiostegals, A strong spine on the scapular bone and 

 at the angle of the praeoperculum, a small one on the operculum ; 

 suborbital arch with radiating ridges. Scales ctenoid rather 

 small ; abdomen serrated. One dorsal fin ; ventral with six rays ; 

 caudal forked. 



Australia and New Zealand. 



314. TRACHiCHTnYS AusTRALis, Shaw. 

 Gunth. Cat. Fishes I., p* 10. 



D. 3/12r A. 2/10. P. 13. 



Scales rough, those of the lateral line not larger ; the serrated 

 ventral keel composed of eight scales. The height of the body 

 not quite one haK of the length between the snout and the base 

 of the caudal. 



New Holland (Gunther), Shaw's original specimen. 



315. Trachichthys jacksoxiexsis, n. sp. 



Trachichthys au&tralis, Castelnau, Proc. Linn. Soc, N.S. Wales, 

 Vol. III., p. 364. 



Count Castelnau when he described this fish believed it to be 

 the T. australis of Shaw. It is however, evidently quite distinct, 

 the height of the body is rather more than half the length (with- 

 out caudal) and the ventral keel is composed of from nine to 

 eleven scales. Colour reddish, cheeks darker with a light band 

 on the posterior margin of the praeoperculum. All the fins, except 

 the pectoral, black, broadly margined with yellow. 



Port Jackson. 



