218 ON SEVERAL NEW SPECIES 



salmon (Corregonus Aretidi, Lesueur, vol. 1, part 2, 

 p. 231;) it is salted to preserve it till sold. They are 

 taken at all seasons of the year, by the seine and 

 hook and line. We observed them at Erie in the 

 month of July 1816, and at Buffaloe, at which latter 

 place we captured many with the seine. A variety 

 occurred in Lake George, of which the specimens ap- 

 peared to us to have the lower jaw more advanced. 

 The fishermen name them Black bass. 



B. 6.— P. 18 to 20.— T. 5.— D. 10 to 15. A. 

 3-12— C. 17J. 



3. C. Ohioensis. Extremity of the anal fin sensibly 

 more remote from the head than that of the dorsal ; 

 scales more regular than in the preceding species. 



The larger of the two individuals which were 

 brought from the Ohio river by Mr. Thos. Say, and 

 deposited in the cabinet of the Academy, is 22 inches 

 long, by five deep, and about three in thickness : the 

 skin of these two specimens, is stronger in its texture 

 than in specimens from Lake Erie, the scales are 

 more uniformly disposed and equal, the anterior por- 

 tion of the dorsal fin is not so much elevated, less 

 arquated, but also furnished with 10 spinous rays, 

 the soft partis equally long with the first, but is more 

 elevated, rounded and composed of 14 branched 

 rays ; the anal fin is rounded, short, with 14 rays, of 

 which the 3 anterior ones, are spinous, the extremi- 

 ty of this fin extends beyond that of the dorsal, in 

 these individuals, further than in the species of Lake 

 Erie. If this character is constant, we must regard it 



