FAMILY PERCIDiE — POMOTIS. 33 



The above characters would seem to announce a new species. I have never met with it, 

 and have adopted the description of Mitchill. Its broad appendix distinguishes it from P. 

 solis, mentioned beneath. 



(EXTRALIMITAL.) 



P. ravaneli. (Cuv. et Val. Vol. 7, p. 465.) Back much arched; denticulations very fine at the angle 

 of the preopercle. D. 10.11; A. 3.9. Length eight inches. South-Carolina. 



P.holbrooki. (Id. lb. p. 466.) Very large black spots on the soft rays of the dorsal ; preopercle very 

 finely denticulated. A. 3.11. Length nine inches. South-Carolina. 



P. incisor. (Id. lb. p. 467.) A single black spot on the soft rays of the dorsal appendix ; long. D. 

 10.10; A. 3.9. Length six inches. New-Orleans. 



P. gibbosus. (Id. lb. p. 467.) Longitudinal series of blackish spots along the back ; membrane of the 

 opercle wide and striate. D. 10.11; A. 3.11. Length eight inches. Charleston. 



P. solis. (Id. lb. p. 468.) With no spots or stripes on the body or fins ; appendix very long and nar- 

 row. D. 10. 11 ; A. 3. 10. New-Orleans and New-York. 



P. catesbei. (Id. lb. p. 469.) Brown and oblique lines on its cheeks ; blackish points on the dorsal 

 and anal fins. Body elongated. D. 10.11; A. 3.9. Length four and a half inches. Phila- 

 delphia. 



Genus Bryttus, Cuvier. A narrow band of velvet teeth on the outer edge of each palatine. The 

 form and all the other characters of the preceding. 



Obs. Cuvier, to whom we are indebted for this genus, observes that it is impossible to find a 

 greater resemblance than between this and Pomotis, the above character being the only one by 

 which they can be contradistinguished. The three species following may prove to be simple 

 varieties. 

 B. punctatus. (Cuv. et Val. Vol. 7, p. 462.) Black points on its cheeks and the sides of the abdo- 

 men ; first soft ventral ray filiform; appendix narrow, and not much elongated. D. 10.11; A. 

 3 . 8. Length five and a half inches. South-Carolina. 

 B. reticulatus. (Id. lb. p. 463.) Bright yellowish-green; base of each scale darker, so that the body 

 appears as if covered with a net work. D. 10.11; A. 3.11. Length seven inches. South- 

 Carolina. 

 B. unicolor. (Id. lb. p. 464.) Only three or four teeth on the anterior part of the palatines. Fins 

 unspotted. Color uniform. D. 10.11; A. 3.9. Length six inches. Pennsylvania, South- 

 Carolina. 



Fauna — Part 4. 



