YOUNG JACK CREVALLES 



467 



a few pigment spots are present distal to the bases 

 of the dorsal and anal soft-rays (fig- 34) . 



Pigmentation on the sides of the body intensifies 

 and becomes blotched between about 15 mm. and 

 17 mm. standard length (fig. 35). Between about 

 17 mm. and 19 mm., from 3 to 5 indistinct bars are 

 present on the sides (fig. 36). At sizes slightly 

 over 19 mm., the full complement of 6 bars (infre- 

 quently, 5 or 7) is present (figs. 37 and 38). At 

 about 40 mm. the lower parts of the bars below 

 the straight part of the lateral line begin to fade, 

 and the upper portions merge into a uniform 

 pigmentation along the back. Indistinct traces 

 of the bars remain on some specimens to over 105 

 mm., although they may have faded out or may 

 be indistinct on some specimens as small as 30 mm. 

 By 40 mm. a dense mass of pigment has developed 

 on the upper portion of the caudal peduncle and 

 the fleshy portion of the caudal fin. Above 60 

 mm. this pigmentation extends as a dark stripe to 

 the tip of the lower caudal lobe (fig. 38). 



The indistinct nuchal band is formed by about 

 30 mm. by the development of a posterodorsally 

 projected pigment mass above and behind the eye 

 (figs. 34 to 38). A slight concentration of pig- 

 ment occurs directly below the eye on some 

 specimens from about 18 to 40 mm. A vague 



vertically elongated spot is present on the oper- 

 culum of some specimens between 40 mm. and 

 80 mm. 



Pigment spots are present on the caudal and 

 pectoral fins on some specimens by 16 mm. (fig. 

 35). The slight pigmentation found in the dorsal, 

 anal, pectoral, and pelvic fins is illustrated in 

 figures 34 to 38. The caudal pigmentation has 

 been previously described. 



Distribution off Southeastern Atlantic Coast of the 

 United States 



Caranx ruber has been reported from the follow- 

 ing localities within this area: the northern 

 Bahamas by Fowler (1919b: 150; 1944: 443), 

 Bean (1905: 302), Lee (1889: 670), Meek and 

 Hildebrand (1925: 357), and Ginsburg (1952: 91); 

 the Gulf Stream off Bimini, Bahamas, by Nichols 

 (1937b: 236; 1938b: 1); Cape Lookout and Beau- 

 fort, N. C, by Nichols (1912: 185; 1935: 268) 

 and Smith (1907: 204); and from Charleston, 

 S. C, by Nichols (1939: 1) and Fowler (1945: 

 189). 



Figure 46 shows the location of specimens taken 

 on the Gill cruises, by the Combat in the Gulf 

 Stream off Florida and South Carolina, USNM 

 specimens examined (Cape Hatteras and Cape 

 Lookout, N. C; on the 1,000-fathom line off Cape 



2 05 



tOO 150 200 



STANDARD LENGTH IN MM 



250 



Figure 44. — Caranx ruber: Relation of the mean lateral-line ratio to standard length. 



