m 



Silvery? olivaceous above, some faint blackish spots on the 

 sides: lower jaw hardly longer, head with sutures, two flat, 

 broad and obtuse spines above the opercule, decurrent with the 

 sutures. Vent medial. Tail lunulate. Diameter one fourth, 

 of the length. 



A very distinct species from the two foregoing. It might al- 

 most form a peculiar subgenus, by the medial vent, and obtuse 

 spines, situated above the lateral line and opercule. It might 

 be called Ambloplitca or obtuse weapons. It is found in the 

 Kentucky and tributary streams Vulgar names White Bass, 

 or Sunfish Bass. Length from 4 to 8 inches. It is also a fish. 

 of prey and has many rows of sharp teeth. Its flesh is like that 

 ©f the Sunfishes. Lateral line following the curve of the back J 

 Iris silvery. Body with gilt shades; dorsal with 21 rays, 11 

 spiny, no depression. Anal 15, whereof 5 are spiny and gradu- 

 ally shorter. Thoracics 1 and 5. Pectoral broad 12 rays. Tail 

 16. Branchial rays 5. A faint and narrow marginal black spot 

 •n the opercule beneath the spines. 



VI Genus Pomoxis. Pomoxis. Pomoxc. 

 Body elliptic, compressed, scaly. Vent anterior. Head 

 scaleless, jaws plaited extensible, roughened by very minute 

 teeth. Gill cover smooth, scaleicss, propcrcule forked be- 

 neath, opercule membranaceous a*id acute posteriorly. Tho- 

 racic fins without appendage, but a spiny ray. One dorsal fin 

 opposite to the anal, both with many spiny rays. 



A very remarkable genus by the anterior vent, equal anal and 



dorsal fin, by which it differs from the genus Sflarus, besides 



the want of appendage, &c. The name means acute opercule. 



18th species. Gold-ring Pomoxis. Pomoxis annularis. Po- 



moxe annulaire. 



Synonymy. Pomoxis annularis. Journal of the Acad, of 

 Nat. Science of Philadelphia, vol. 1, p. 41 7, tab. 17, fig. l. 



Silvery, back olivaceous, with some geminate brown trans- 

 versal lines; a golden ring at the base of the tail; lateral line 

 straight: dorsal and anal fins with six spiny rays, a marginal 

 black spot behind both fins: tail forked: lower jaw longer. 



Vulgar names Gold-ring and Silver-perch. Found in Au- 

 gust at the falls, probably permanent^ Length from three to 



