and its Tributaries, 239 



in that market, by other species of a superior quality, from 

 the Atlantic sea board. 



A profitable and mutually advantageous barter might be 

 carried on, between the fisherman of our Eastern States and 

 the farmers of the West, in exchanging the fish of the one 

 section, for the pork, flour and butter of the other. 



The demand for salted fish at the West is unlimited. 

 Shad, Cod and Mackerel are now carried there in considera- 

 ble quantities, and it is believed that other species, but little 

 esteemed at the East, yet very abundant, would, if suitably 

 cured, meet with a ready sale at the West. The Ale wife, 

 Herring and even the despised Menhaden, would pay for all 

 the expense of catching, packing, salting and transporta- 

 tion, and find a quick market at the West. 



Centrarchus. Cuv. 



C. (Bueus. Cuv. et Val. The Rock-bass : Goggle-eyed bass. 



Black Sunfish. 



Centrarchus cEneus. Cuv. et Valenc, t. III. p. 84. 



" " Richardson. Fauna Boreali-Amcricana, p. 18 et fig. 



Cychla mnea. Le Sueur. J. A. N. Sciences, Vol. II. p. 214. 



*' '* Kirtland. Repoit on Zoology of Ohio, pp. 163, 191. 



Plate XL Fig. 1. 



Head obtuse ; jaivs somewhat rounded, furnished with 

 numerous small teeth ; lower jaw the longer. Tongue and 

 palate also furnished with teeth ; mouth large, extending as 

 far back as the middle of the eye ; eyes large, convex and 

 prominent ; the pupil black, tinged with bluish and is semi- 

 pcllucid : the iris black, with a red border surrounding the 

 pupil ; the eye-lids ferruginous or yellowish, often margined 

 with blue. 



Body oblong, horizontal under the dorsal fin, rounded un- 

 der the throat and abdomen ; prominent at the base of the 

 soft -dorsal and soft-anal fins. 



Dorsal Jin long ; spinous part half the height of the soft 

 parts, slightly recurved ; each spinous ray strong, and acute. 



