j$ PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



The numerous gill rakers, the long dorsal and anal, and the color characterize 

 this species. The following counts are from Dr. Longley's notes: D. VII or VIII- 

 1,27 or 28; A. H-1,24 or 25; gill rakers 32 to 34. 



West Indies, northward on the southern shores of the United States. 



S. F. H. 



Caranx bartholomaei Cuvier and Valenciennes. Yellow jack 



During the summer this species was seen more commonly than any other 

 carangid except Caranx ruber. It is rather more a bottom fish than that species, 

 and less shy. A dozen or more almost in single file sometimes were seen swim- 

 ming only 6 to 8 inches from the bottom while small fishes scurried from their 

 line of march. 



Particularly after death this fish has a yellowish cast to which it owes its name; 

 fins chiefly yellow; dorsal rising from within a median yellow stripe; sides 

 crossed by five faint blue and wavy transverse lines giving it a pattern something 

 like that of watered silk. The young at 165 mm. with a vertical dark line of width 

 of pupil passing through eye; five or six narrow bluish lines, strongly inclined 

 forward and downward, visible above lateral line, and oblong silver spots on a 

 yellow ground below it. 



A few, up to 185 mm. in length, were collected in the Bird Key rookery. 



This species is readily distinguishable by the depth, which is considerably 

 greater than that of C. crysos and C. ruber; by the rather small number of gill 

 rakers; and by the smaller number of anal rays, about 2 less than in C. ruber. 



West Indies, northward to the southern shores of the United States. 



W. H. L. 



Caranx lugubris Poey 



A single specimen, about 80 mm. long, obtained in waste from the tern colony 

 on Long Key. At this size it is very unlike species of Caranx locally common. 

 It is distinguished, in part, by its larger head; shorter snout; stronger teeth; one 

 strong median tooth on vomer; none visible on palatines; scutes much stronger 

 than in other local species; and spines of posterior half of series strongly antrorse. 



In color it is almost uniformly leaden, except that the pectoral and caudal fins 

 are sharply dark at the base only, and the rest seems to have been yellowish. 



Tropical Atlantic, northward to Florida. W. H. L. 



Caranx latus Agassiz 



Occasionally large schools gather about the Laboratory and east lighthouse 

 dock; the young, 50 to 125 mm. in length, are not uncommon during the sum- 

 mer; and the smaller sizes are common in the waste from the Bird Key rookery. 



This fish is changeable in color. The young often, and the half-grown occa- 

 sionally, are banded with an oblique dark line as wide as pupil, running from 

 occiput through eye nearly to angle of mouth; body barred with alternate dark 

 and light vertical bands, of approximately equal width in the young, but with 

 the dark bars broader in the larger individuals. In the adult fish, as seen in the 

 water, the color commonly is blue-gray, countershaded to silver below, self- 



