SKIPPER. 
145 
the head an upward direction with a slight effort when swimming 
in haste; the rays thirteen or fourteen. Dorsal and anal fins 
far behind, and opposite, eleven or twelve rays in each; ventral 
fins a considerable distance before the vent and anal fin, with 
eight rays ; and behind the dorsal and anal fins are finlets, which 
vary from five to seven in number; tail forked. The scales 
are easily lost, and then the skin appears more or less of a 
deep green; but when unhurt the back is a fine blue, the 
belly silvery tinged with blue; and from the upper line of the 
gill-covers to the tail there passes a broad line of silvery white. 
VOL IV 
V 
