COLLETTE ET AL: SCOMBEROMOROUS HRASILIENSIS NEW SPECIES 



40 H 



X 

 I— 



O 



z 



> 



600 



675 



FORK LENGTH (mm) 



Figure l. — Regression of pelvic fin length on fork length in five species of Scomberomorus . The regression line for S. brasiliensis is 

 significantly different from those for S. maculatus, S. sierra, S. tritor, and S. regalis. The regression lines for these four species do not 

 differ significantly from each other so the same symbol is used for plotting specimens of the four species. 



species). Pectoral fin without scales (covered with 

 scales in S. regalis). Vertebrae (19-21) + (27- 

 29) = 47-49 usually 20 + 28 = 48. Gill rakers (1- 

 3) + 1 + (9-12) = 11-16, usually 13-15 (Table 3) 

 more than in S. cavalla (7-12) and many fewer 

 than in S. concolor (21-27). Pectoral fin rays 21-24, 

 usually 22 or 23, usually 21 in S. tritor, S. sierra, 

 and S. maculatus , 21 or 22 in S. regalis (Table 4). 

 Dorsal spines 17-19, usually 17 or 18; second dor- 

 sal fin rays 17-19; dorsal finlets 8-10; anal fin rays 

 18-20; anal finlets 8-10, usually 8 or 9. Mor- 

 phometric data are summarized in Table 5. Intes- 

 tine with three limbs and two folds (Figure 2). 



Sides with several rows of round yellowish- 

 bronze (in life) spots similar to S. maculatus and S. 



Table 4. — Number of pectoral fin rays in five species of 

 Scomberomorus . 



sierra but without any lines or streaks such as are 

 present in S. regalis. The number of yellowish- 



TABLE 3. — Numbers of upper, lower, and total gill rakers on the first gill arch in five species of Scomberomorus . 



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