1. PERCA. 59 



verse line ^^. A large black mark on the posterior pan of the fii'st 

 dorsal fin. 



Europe ; Asiatic Russia. 



at, b. Large specimens : stuffed. England. 



c. Adult: stuffed. England. 



d, e. Adult. England, 



/. Half-grown. England. Presented by J. Doubleday, Esq. 

 g. Half-grown. England. Presented by the Zoological Society. 

 h. Half-grown. Peterborough. Presented by C. Watkins, Esq. 

 i, Ic. Young. London. Presented by W. Yarrell, Esq. 

 I. Adult : skin. Norfolk. Mr. Yarrell's Collection. 

 m-t. Adult and half-grown : skins. England. Mr. Yarrell's Col- 

 lection. 

 u. Adult : stuffed. Loch Lomond, Scotland. 

 V. Half-grown : stuffed. Duddingston, Scotland. 

 w. Half-grown : stuffed. Loch Maben, Scotland. 

 X, y, z. Half-grown. Switzerland. Presented by Prof. Agassiz. 

 a, /3. Large specimens. Sweden. From Mr. Lloyd's Collection, 

 y. Young. Sweden. From Mr. Lloyd's Collection. 

 h. Adult : skin. Sweden. Mr. Yarrell's Collection. 

 €. Adult : skin. Europe. Mr. Yarrell's Collection. 

 Z, T). Adult. Europe. Presented by the College of Surgeons. 

 6, t. Half- grown. Europe. Presented by the College of Surgeons. 

 K, X. Half-grown. Sine patria. From the Haslar Collection. 

 fi. Young. From the Collection of the Zoological Society. 

 r. Adult; skeleton. England. 



2. Perca flavescens. 



Bodianus flavescens, Mitchill, Ph. Trans. New York, i. p. 421. 



Perca flavescens, Cuv. Regne Anim. ; Cuv. ^ Val. ii. p. 46 ; Richard- 

 son, Faun. Bor.-Amcr., Fishes, p. 1. pi. 74 ; Storer, Rejwrt, p. 5, and 

 Synopsis, p. 17, and Bost. Journ. Nat. Hist. iv. p. 175 ; Kirtland, in 

 Bast. Journ. v. p. 337. pi. 27. f. 2 (bad) ; Deka>/, Ncu- York Fauna, 

 Fishes, p. 3. pi. 1. f. 1 ; Holbrook, Ichth. S. Carol, p. 2. pi. 1. f. 1 : 

 Agassiz, Lake Superior, p. 291. 



granulata, Cm: ^- Val. ii. p. 48. pi. 9, cop. by Dekay, New York 



Fauna, p. 5. pi. 68. f. 220. 



serrato-gi'anulata, Cuv. ^- Val. ii. p. 47 ; Dekay, I. c. pi. 22. f. 64. 



D. 13-14 1 i^. A.^. Cffic. pylor. 3. Vert. 21/20. 



Total length equal to 3f or four times the height of the body. 

 Inferior edge of opercidum with a few weak denticulations ; inferior 

 edge of prseoperculum with about ten rather slender spinous teeth, 

 directed forwards ; operculum striated ; 60 to 65 transverse rows of 

 scales; transverse line ^. A large black mark on the posterior 

 part of the first dorsal fin. 



United States ; Canada. 



a. Adidt. New York. From Mr. Brandt's Collection. 

 h. Adidt. Boston. Presented by J. Winstone, Esq. 



