122 



PROCEEDINGS OF THE ACADEMY OP 



[188J 



short, about seven below angle. Eye large, 3 in head, its diameter 

 a little greater than its distance from snout, and about equal to 

 the interorbital space. 



Scales moderate, as in other species. Lateral line follows curve 

 of back, being most arched beneath fifth and sixth spines. 



Spinous dorsal as long as soft, second dorsal spine nearly 1| in 

 second anal spine, which is stronger than the third, but equals it 

 in length ; posterior ends of anal and dorsal fins opposite, soft 

 parts of these two fins depressible into a scaly sheath. Pectorals 

 nearly as long as head, reaching to vent. Ventrals short, not 

 reaching quite to vent. Caudal deepl3'- forked. 



Color, in alcohol, silvery, palest below, no lines or bars except 

 sometimes in young, but the scales are minutely punctate with 

 dark, thickest on dorsal region. A black spot at top of spinous 

 dorsal. 



Head 3^ in length ; depth, 2|. D. IX-10 ; A. II 1-7 or 8 ; Lat. 

 line about 5-45-9. 



We append averages of the measurements of thirteen specimens, 

 viz. : — 1 from Bermuda ; 2 from Beaufort, N. C. ; 2 from Charleston, 

 S. C. ; 7 from Pen-acola, Fla. ; 1 from Aspinwall. 



From a comparison of these specimens and of some seven 

 others which we have examined, we are convinced that the 

 synonymy of this species should stand as given above. 



TABLE OF MEASUREMENTS. 



Number of specimens measured . 



Specimens from 



Greatest depth in length 



Head in length 



Distance from snout to spinous dorsal in length 

 Second anal spine in second dorsal spine . . . 

 Eye in head 



Depth of deepest specimen in length 



Depth of most slender specimen in length. . 



Shortest 2d anal in 2d dorsal spine 



Longest 2d anal in 2d dorsal spine. 



cq 



2.772.81 

 3.313.18 

 2.712.50 

 1.76 2.00 



<1 



2.672.612.672.66 

 3.333.233.083.23 

 2.512.422.392.46 



1.701.73 



3.05 3.02 3.00 3.00 3.00 



2. 77'2. 772. 632. 332. 67 

 2.772.862.702.862.67 

 1.76,2.00 1.70,2.09 

 1.76 .... 1.7011.54 



1.74 

 3.01 



