Class IV. COMMON FLOUNDER. ' 307 



" Each spine at the base of the fins, consists 

 of a small bony tubercle, covered with many 

 sharp points, sometimes more or less bent. The 

 side line is slightly bent at the commencement. 

 The body tapers towards the tail which is some- 

 what rounded : in the dorsal fin are fifty-two 

 rays. The variety having the eyes placed on 

 the left side is very common : after examining 

 several specimens, (no less than six were pro- 

 cured at the same time at one place of sale,) no 

 other difference was perceived. The Pleu- 

 ronectes roseus, Rose colored Flounder of the 

 Naturalist's Miscellany, tab. 238, appears to 

 differ from the common species in no other re- 

 spect than in its color; if so, it can at most 

 claim no greater distinction than that of a 

 variety. E. H." 



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