The Cavallas 



The genus Caranx differs from Carangus mainly in the 

 dentition, the teeth being very small, granular, and are entirely lost 

 with age; maxillary broad, body compressed, the fins without 

 filaments. 



Our single known species is the mojarra dorada, Caranx 

 speciosus, which occurs in the Red Sea, the Indian Ocean, and in 

 the tropical Pacific north to Cape San Lucas. It is frequent on 

 sandy shores and is an excellent food-fish. It reaches a length 

 of 2 feet. 



Colour, brilliant golden; side with 6 broad, dusky crossbands, 

 a narrow stripe between each pair of broader ones; opercular 

 spot obsolete; a small black spot in axil: caudal lobes dusky on 

 inner edge; no dark caudal spot. 



The genus Carangoides is close to Carangus, but has the 

 persistent teeth all small and in villiform bands on jaws, vomer, 

 palatines, and tongue; lateral line scarcely arched; body oblong, 

 not much elevated; none of the dorsal rays produced. The only 

 known species is C. orthogrammus, thus far found only at Clarion 

 Island. 



The genus Citula differs from Carangoides mainly in having 

 one or more of the anterior rays of the soft dorsal produced in 

 filaments. The body has not the distorted form seen in Alectis 

 but is more like that of Carangus. Species found chiefly in warm 

 seas. The only species in our waters is C. dorsalis, the Pacific 

 pompano. This fish occurs on sandy shores from Mazatlan to 

 Panama. It reaches about 2 feet in length, but is not very 

 abundant. 



Colour, steel-blue above, silvery below, with golden reflections; 

 fins all pale, tinged with yellowish; axil jet black; ventrals tipped 

 with dusky; opercle dusky along the edge, blackish within; a 

 dark spot on orbit above. 



The genus Alectis is not essentially different from Carangus, 

 the great change in form arising from no important modification 

 of the skeleton. The changes due to age are surprisingly great, 

 the young being almost orbicular, and the dorsal filaments ex- 

 ceedingly long. There are several tropical species. The only one 

 in our waters is A. ciliaris, the thread-fish, cobbler-fish or sun- 



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