500 NEW YORK STATE MUSEUM 



Genus PERCA (Artedi) Linnaeus 



Body oblong, somewhat compressed, the back elevated; 

 cheeks scaly; opercles mostly naked; the operculuin armed with 

 a single spine; preopercle and shoulder girdle serrated; pre- 

 opercle with retrorse, hooked serrations below; mouth moder- 

 ate, terminal; premaxillaries protractile; teeth in villiform 

 bands on jaws, vomer, and palatines, no canine teeth; bran- 

 chiostegals seven; gill membranes separate; pseudobranchiae 

 small, but perfect; no anal papilla; scales rather small, strongly 

 ctenoid, lateral line complete, the tubes straight and not extend- 

 ing to the extremity of the scale; dorsal fins entirely separate, 

 the first of 12 to 16 spines; anal fin with two slender spines, 

 well separated from the soft rays; ventral spines well devel- 

 oped, the ventral fins near together; caudal emarginate; air 

 bladder present; pyloric caeca three; vertebrae very numerous, 

 21+20 or 21=41 or 42. Fresh waters of northern regions; three 

 closely related species now known, Perca fluviatilis in 

 Europe, P. schrenekii in Asia, and P. flavescens in 

 North America. 



246 Perca flavescens (Mitchill) 



Yellow Perch; Ring Perch 



Morone flavescens MITCHILL, Report in Part, 18, 1814. 



Bodianus flavescens MITCHILL, Trans. Lit. & Phil. Soc. N. Y. I, 421, 1815. 



Perca serrato-granulata CUVIER & VALENCIENNES, Hist. Nat. Poiss. II, 47, 



1828, New York; DE KAY, N. Y. Fauna, Fishes, 5, pi. 22, fig. 64, 1842. 

 Perca granulata CUVIER & VALENCIENNES, op. cit. II, 48, pi. IX, 182S, New 



York; DE KAY, op. cit. 5, pi. 68, fig. 220, 1842. 

 Perca acuta CUVIER & VALENCIENNES, op. cit. II, 49, pi. X, 1828; DE KAY, op. 



cit. 6, pi. 68, fig. 222, 1842. 

 Perca gracilis CUVIER & VALENCIENNES, op. cit. II, 50, 1828, Skaneateles 



Lake, N. Y.; DE KAY, op. cit. 6, 1842; GUNTHER, Cat. Fish. Brit. Mus. 



I, 60, 1859. 



Perca americana JORDAN & GILBERT, Bull. 16, U. S. Nat. Mus. 524, 1883. 

 Perca flavescens CUVIER & VALENCIENNES, op. cit. II, 46, 1828; DE KAY, op. 



cit. 3, pi. 1, fig. 1, 1842; GUNTHER, op. cit. 1, 59, 1859; 



STORER, Hist. Fish. Mass. 4, pi. II, fig. 1, 1867; MEEK, Ann. N. Y. Ac. 



Sci. IV, 314, 1888; BEAN, Fishes Penna. 126, color pi. 12, 1893; EVER- 



MANN & KENDALL, Ptept. U. S. F. C. for 1894, 602, 1896; JORDAN & 



EVERMANN, Bull. 47, U. S. Nat. Mus. 1023, 1896, pi. CLXV, fig. 435, 



1900; BEAN, Bull. Am. Mus. Nat. Hist. IX, 365, 1897; MEARNS, Bull. 



AID. Mus. Nat. Hist. X, 320, 1898; EUGENE SMITH, Proc. Linn. Soc. 



N. Y. 1897, 37, 1S9S. 



