YOUNG JACK CREVALLES 



479 



90 



80 



70 



60 



O 50 

 > 



a. 



< 40 



X 



h- 

 o. 



bJ 

 Q 



>. 30 



Q 



O 



20 



10 



"i i i r 



i — i — i — i — | — i — i — i — i — I — i — i — i — i — I — i — r7 — i — i — 1 — i — i — r 



j I i L 



i i l L_ 



i i i i 



J I 1 L 



J I I L 



J I I L 



80 



70 



60 



50 ' 



40 ; 



x 

 i- 



< 



bJ 



— 30 



20 



— 10 



100 150 200 



STANDARD LENGTH IN MM. 



250 



300 



Figure 57. — Caranx bartholomaei: Relation of body depth at pelvic and of head length to standard length. 



the cleithrum just below its junction with the 

 operculum on the 6.0-mm. specimen. These 

 spines are not present at 8.1 mm. or above. 



The regression of head length on standard 

 length is shown in figure 57 and table 11. A 



line fitted to this regression for specimens from 

 6.0 to 95.0 mm. standard length shows a propor- 

 tional rate of increase for the two variates within 

 this size range (0.31-mm. increase in head length 

 per 1.0-mm. increase in standard length). The 



