YOUNG JACK CREVALLES 



493 



Figure 71 — Caranx latus juvenile, 31.9 mm. standard length {Gill 8, Settlement Point, Bahamas). 



Figure 72. — Caranx latus juvenile, 83.5 mm. standard length (UF 3021). 



(eighth and ninth spines) to about 75 mm. 

 standard length. 



The regression of length of the third dorsal spine 

 on standard length is shown in figure 73 and table 

 16. A line fitted to this regression for specimens 

 from 16.1 to 113 mm. standard length indicates 

 that a proportional rate of increase of the two 

 variates is maintained from about 22 to 113 mm. 

 (0.105-mm. increase in spine length per 1.0-mm. 

 increase in standard length). The alinement of 



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the coordinates for the four specimens of latus 

 smaller than 20 mm. and for specimens in the 

 "latus and/or hippos" series suggests that a faster 

 spine growth rate prevails below approximately 

 20 mm. The coordinates of the two specimens 

 larger than 113 mm. fall above the extension of the 

 calculated regression line, indicating an increase in 

 spine growth rate at some size around 113 mm. 

 standard length. 



Anal spines. — II and I. The second spine is 



