478 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



(below 75 mm.) and 0.39-mm. (above 75 mm.) 

 increase in pectoral length per 1.0-mm. increase 

 in standard length. 



Pelvic. — 1-5. All the rays are discernible at 

 6.0 mm. (fig. 48). Branching has begun by 15 

 mm. standard length. 



Body depth. — The depth at first anal spine aver- 

 ages less than deptli at pelvic to about 45 mm., 

 is nearly equal from about 45 to 55 mm., and 

 averages greater above 55 mm. standard length. 

 The body depth at pelvic for the two specimens 

 smaller than 10 mm. is illustrated in figure 9. 



The regression of body depth at pelvic on 

 standard length is shown in figure 57 and table 

 11. A line fitted to this regression for specimens 

 from 12.7 to 108 mm. standard length shows a 

 proportional rate of increase for the two variates 



within this size range (0.36-mm. increase in body 

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

 The alinement of the coordinates of the four 

 smallest specimens below the extension of the 

 calculated regression line indicates that a faster 

 body-depth growth rate prevails below approxi- 

 mately 13 mm. The alinement of the coordinates 

 of the five largest specimens below the extension 

 of the calculated regression line indicates that a 

 decrease in body-depth growth rate occurs between 

 approximately 110 mm. and 150 mm. standard 

 length. 



Head. — The nostril is undivided at 6.0 mm. 

 (fig. 48) and divided at 8.1 mm. (fig. 49). Ser- 

 rations occur on the supraoccipital crest at 6.0 

 mm. (fig. 48); none at 8.1 mm. (fig. 49). Two 

 posterolaterally projecting spines are located on 



80 



70 



60 



2 50 



X 



1- 



40 



< 

 rr 

 o 



H 

 O 



LjJ 

 CL 



30 



20 



10 



-i — i 1 — r 



"l 1 1 r 



j I I L 



J I i L 



1 



J I I L 



250 



100 150 200 



STANDARD LENGTH IN MM. 

 Figure 56. — Caranx barlholomaei: Relation of pectoral length to standard length 



