BY TV. MACLEAY, F.L.S. 631 



Family XVII. CAEANGIDJE. 



Body generally compressed, oblong, or elevated, covered with 

 small scales or naked. Dentition variable. The spinous portion 

 of the dorsal fin sometimes rudimentary, the soft dorsal and anal 

 of about equal size. Yentrals thoracic sometimes rudimentary. 

 Vertebra 10/14. 



Genus Trachurus, Cuv. & Val. 



Body oblong, slightly compressed, covered with very small 

 scales ; the lateral line with a band of high plates from beginning 

 to end. Snout extended. Two dorsal fins with a horizontal 

 anterior spine ; anal with two spines, separate from the soft 

 portion. No finlets. Teeth minute in the jaws and on the vomer 

 and palatine bones. Seven branchiostegals ; pseudobranchiae ; 

 air-bladder bifurcate posteriorly. Pyloric appendages in small 

 number. 



All Seas. 



347. Trachurus traohurus, Cuv. & Val. 



Gunth. Cat. Fishes II., p. 419. 



Caranx declivis, Jenyns., Zool. Beagle Fishes, p. 68, pi. 14. 



Horse Macherel of England ; the Yellow Tail of Sydney. 



D. 8. 1/33. A. 2. 1/29. L. lat. 75. 



The height of the body is about one-fifth of the total length, 

 the length of the head a little less ; the snout is longer than the 

 diameter of the eye, the maxillary reaches to, or slightly beyond 

 the vertical from the anterior margin of the eye ; the lateral line 

 becomes straight and strongly armed beneath the eighth dorsal 

 ray. A black blotch on the posterior margin of the operculum ; 

 tail yellow. 



Coasts of New South Wales, Victoria, and Tasmania. 



3 P 



