568 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



Genus Auxis, Cuv. & Val. 

 Body oblong ; cleft of mouth wide ; the first dorsal fin continu- 

 ous, separated from the second, with the spines of moderate 

 strength. Seven to nine dorsal and anal finlets. Scales of the 

 pectoral region forming a corslet ; teeth very small, none on the 

 palate ; a keel on each side of the tail ; seven branchiostegals ; 

 no air-bladder ; pyloric appendages dendritical. 



All Seas. 



398. Auxis ROCHEi, Eisso. 



Gunth., Cat. Fishes II., p. 369. 



Auxis vulgaris, Cuv. & Val., Poiss., Vol. VIII., p. 139, pi. 216. 



D. 10-11/12 VIII A. 12-14 vn. Vert. 39, 



The height of the body is four times and a-haK (in young 

 individuals six times) in the total length, and equals the length 

 of the head ; the pectoral fin reaches to the end of the first dorsal. 

 Back blue, variegated with darker — uniform in old age ; belly 

 silvery. 



West Australia (Castelnau). 



399. Auxis Eamsayi, Casteln. 

 Proc. Linn. Soc. N. S. Wales, Vol. III., p. 382. 

 '^ Sbrse Macherel^^ of the Sydney Fisherman. 

 Port Jackson. 



Genus Cybium, Cuv. 



Like the last genus, but with the teeth stronger and on the 

 palate, and no corslet on the pectoral region. 

 All Seas. 



400. Cybium Commersoxii, Lacep. 

 Gunth., Cat. Fishes II., p. 370. 



