BO 



very brown. Belly of a bright copper red colour. All the Rnj 

 black except the pectorals which are olivaceous, trapezoida 

 *2^cute and large. The dorsal has 90 rays, whereof 9 short ones 

 are spiny. Body very short, hardly as long as broad, if thq 

 head and tail are deducted. Thoracics like those of the forego 



ing species 



V Genus. River Bass. Lepomts. Lepome. 



This genus differs from Holocentrus by having the opercule 

 scaly, from Calliurus by the opercule only being such, while 

 the preopercule is simple and united above with a square suture 

 over the head, besides the thoracic fins with 6 rays. Perhaps 

 the Calliurus ought only to be a subgenus of this. From the 

 G. Icthelis it differs by the large mouth and spines on the oper- 

 cule. 



The name means scaly gills. The species are Humerous 



throughout the United States. They are permanent; but ram- 

 blers in the Ohio and tributary streams. They are fishes of 

 prey, and easily caught with the hook. I shall divide them 

 into two subgenera. I had wrongly blended this genus and thq^ 

 Icthelis under the name Lefiomia 13. G.of my Prodr. N. G. 

 1st Subgenus. Aplites, 

 Only one flat spine on tha opercule, decurrent in a small me- 

 dial opercule: first ray of the thoracic fins soft or hardly spiny* 

 Meaning, single weapon. 



12th Species. Pale River-bass. Lejiomis fiallida. Lepome 

 pale. 



Olivaceous above, white beneath, a brown spot at the base of 

 he lateral line, ah obtuse appendage on the opercule, spine be- 

 hind it: 3 faint obliqual streaks on the gill covers; lowe^; jaw 

 longer: tail forked, pale yellow, dp brown. 



Not uncommon in the Ohio, Miami, Hockhocking, &c. Vul- 

 gar name Yellow Bass, common Bass, &c. Length from 4 to 

 12 inches. Shape elliptic, diameter one fourth of the total 

 length. Fins olivaceous, without streaks, dorsal depressed or 

 interrupted in the middle, 9 spiny rays to the fore part, the me- 

 dial longer, 1 spiny ray and 14 soft rays to the hind part. Anal 

 fin rounded 13 rays, whereof 2 are spiny and short. Pectorals 

 rounded with l^_ rays. Tail with 18. Thoracics with 6, Eye^ 



