168 



FISH GALLERY. 



The dorsal spines are few ; the anal fin usually has one or two 

 spines detached from the rest of the fin. The scales are either 



Fig. 78. — Yellow-tail, Seriola lalandii. 



small or absent ; frequently there are enlarged scutes on the 

 sides of the body and tail ; the premaxillary bones are more or 

 less protractile. The Carangid fishes have a wide range, and 

 are found in tropical and temperate 'seas. The principal genera 

 are Caranx (Horse-Mackerels), Seriola (Yellow-tails, fig. 78), 

 Naucrates (Pilot-fish, fig. 79), Trachynotus and Chorinemus. The 



Fig. 79. — Pilot-fish, Naucrates ductor. 



genus Caranx is represented in British seas by the Scad, Caranx- 

 trachurus, 719, the young of which live in small parties in the 

 neighbourhood of jelly-fish, and seek shelter beneath them when 

 disturbed. Other species shown are Caranx affinis, C. ciliaris, 

 and C. speciosus, all from the Indian Ocean. The name Yellow- 

 tail is applied to any species of Seriola, but more particularly to 

 Seriola lalandii (721, and fig. 78) of the Southern Atlantic and 

 Seas of Japan ; Seriola gigas (722) and S. dumerilii (723) are 

 also shown. 



