78 ICHTHYOLOGIA OHIENSIS 



with the hook. I shall divide them into two sub- 

 genera. I had wrongly blended this genus and the 

 Icthelis under the name Lepomis 13. G. of my Prodr. 

 N. G. 



1st Subgenus. Aplites. 



Only one flat spine on the opercule, decurrent in a 

 small medial opercule : first ray of the thoracic fins 

 soft or hardly spiny. Meaning, single weapon. 



1 2th Species. Pale River-bass. Lepomis pallida. 

 Lepome pale. 



Olivaceous above, white beneath, a brown spot at 

 the base of the lateral line, an obtuse appendage on 

 the opercule, spine behind it : 3 faint obliqual streaks 

 on the gill covers; lower jaw longer: tail forked, 

 pale yellow, tip brown. 



Not uncommon in the Ohio, Miami, Hockhocking, 

 &c. Vulgar 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 

 medial 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 14 rays. 

 Tail with 18. Thoracics with 6. Eyes [II. 51] [j/] 

 large, black, iris brown with a gold ring. Lateral 

 line following the back, straight near the tail. 



13th Species. Streaked-cheeks River- Bass. 

 Lepomis trifasciata. Lepome trifasciee. 



Whitish, crowded with unequal and irregular 

 specks, of a gilt olive colour, none on the belly : gill 

 covers with 3 large oblique streaks of the same 

 colour: opercule without appendage, spine acute, a 



