0.8 h 

 5 0.7 



*0.6 



o 



z 



LJ 

 _l 



uj0.5h 



CL 

 CO 



llI 0.4 



_l 



< 



o: 0.3 

 < 



_J 



O 



lu 02 



Q. 

 O 

 UJ 



tr 



Q. 

 0.1 







"i — r 



i — i — | — i — i — i—i r 



— crysos bartholomaei 



YOUNG JACK CREVALLES 

 T — I 1 — r 



437 



-ruber 



-lotus 



j—i r— r 



hippos 



-vwwu/ff/i/5 and/or hippos 



"i — r 



20 30 



STANDARD LENGTH IN MM. 



50 



Figure 15. — Comparison of the variations of length of the preopercular-angle spine with respect to standard length 



for five species of Caranx. 



Table 1. — Ranges in numbers of spines on the upper and 

 lower limbs of the preoperculum, by 5-mm. intervals, for 

 five species of Caranx 



(1) Specimens of hippos from about 20 to 45 

 mm. have intense pigmentation over most of the 

 first dorsal fin; in comparable sizes of latus this is 

 associated primarily with the second, third, and 

 fourth spines. 



(2) On hippos of 15.3 to 60 mm., the pigment 

 of the posterior 3 bars extends nearly to the base 

 of the anal fin; on most specimens of latus of more 

 than 20 mm., these bars terminate ventrally on or 

 slightly below the straight lateral line. 



(3) The bars of juvenile latus larger than 26 

 mm. are wider than those of hippos of comparable 

 size, but this character is most difficult to measure. 



(4) Commonly, 5 body bars occur on latus, 

 hippos, and bartholomaei, 6 on ruber, and 7 on 

 crysos. 



(5) The presence of body bars (and blotches on 

 bartholomaei) is probably characteristic only of the 

 juvenile stage. These bars persist to the largest 

 sizes on hippos, disappearing at some size between 

 164 mm. and 248 mm. The bars of latus disappear 

 at some size between 90.5 mm. and 1 16 mm., those 

 of ruber at probably a little over 105 mm., and 

 those of crysos at about 110 mm. The bars of 

 bartholomaei begin to break up at about 28 mm., 



