;RITISH IRESH-WATER glSHES. 



Pn the fHAMBS, NEAR J^OEBUCK JnN. 



Order I. 

 A CANTHOPTERYGII. 



Family 

 PERCID/E. 



m. 



Perch. 



{Pcira fluviafilis.) 



Perke, 



Perca, 



Perca fluviaiilis, 



Aristotle, H. A., ii. 9 § +; 12 § 13, vi. 13 § 2. 

 Pliny, xxxii. 9; Auson., Id. x. 113. 



Rondel., ii. 196; Willughby, iv. c. 14, p. 291; Lin., i. p. 481; Yarrell, Brit. 

 Fish., i. p. J ; GOnther's Cat. i. p. 58; Couch's Fish. Brit. Isles, i. 185. 



Characters of the Genus Perca. — "Seven branchiostegals. All the teeth villiform, without canines; teeth on the 

 palatine bones, tongue smooth. Two dorsals; the first with thirteen or fourteen spines; anal fin with two spines; 

 operculum spiniferous; prseoperculum and prseorbital serrated. Scales small; head naked above." — Gdnther. 



OF the family Pcrcida there are only two British fresh-water species, the Common Perch 

 {Perca fluviaiilis) of our ponds, lakes, and rivers, and the Ruffe or Pope. The Perch 

 was known to the ancient Greeks and Romans. Aristotle speaks of it under the name of 



B 



