556 DESCRIPTIVE CATALOGrE OF AUSTRALIAN FISHES, 



G-enus Thynnus, Cuv. & Val. 

 Body oblong ; cleft of tlie moiitli wide. Tlie first dorsal 

 continuous with tlie spines rather feeble ; six to nine spurious 

 fins behind the dorsal and anal. Scales of the pectoral region 

 forming a corslet. Teeth rather small in the jaws and on the 

 vomer and palatines. A longitudinal keel on each side of the 

 tail. Seven branchiostegals. Air-bladder simple, sometimes 

 absent. Pyloric appendages in exceedingly great number. 



All Oceans. 



394. Thynnus affinis, Cantor. 



Gunth. Cat. Fishes II., p. 363. 



D. 15. 3/10 VIII. A. 3/11 VII. 



The height of the body is four times and a-half in the total 

 length, the length of the head three and three-quarters ; the 

 length of the pectoral fin is six times and a-half in the total. 

 Above blue, with oblique undulating blackish bands, directed 

 backward and upwards ; sides and bellji silvery ; the first dorsal 

 fin with a brownish spot. 



Port Jackson (Macl. Mus.) 



395. Thynnxts palamys, L. 

 aunth. Cat. Pishes II., p. 364. 



'' The Bonita:' 

 D. 15. 1/12 VIII. A. 2/12 VII. 



The height of the body is four times in the length to the middle 

 of the fork of the tail ; the length of the head three and a-half 

 in the same. The pectoral fin reaches to the vertical from the 

 tenth dorsal spine ; the length of the posterior margin of the 

 preeoperculum is once and two-thirds in that of the inferior. Back 

 bluish, on each side of the belly four brownish longitudinal bands. 



Port Jackson (Castelnau), East Coast. 



