PERCIDJE. XC. 225 



few pyloric coeca. Carnivorous fishes of moderate or 

 rather large size, chiefly of the rivers of the Northern 

 Hemisphere. As here restricted, a small family of about 

 five genera and fifteen species. 



* No canine teeth among the villiform ones; body compressed, 



cross-banded. . PERCA, 1. 



** With strong canine teeth ; body elongated. STIZOSTEDIDM, 2. 



/. PERCA, Linnaeus. PERCHES. 



1. P. flavescens, (Mit.) Cuv. COMMON YELLOW PERCH. 

 Olivaceous, sides yellowish, with broad dark bars; head 

 3 in length; depth about the same; D. XIII 14; A. 

 II, 7; lat. 1. 63. Fresh waters E. U. S., chiefly north- 

 ward and eastward. 



2. STIZOSTEDIUM, Rafinesque. PIKE PERCHES. 

 = Lucioperca, Cuvier. 



1. S. americanum, (Val.) Gill. WALL-EYED PIKE. 

 YELLOW PIKE. SALMON (S.) GLASS EYE. DORY. Olive 

 green; young yellow, with dark blotches; head 3^ in 

 length; depth about 4, varying with age; a dark spot on 

 spinous dorsal behind; D. XIV I, 20. A. II, 13; lat. 

 1. 100. Great Lakes and Western Rivers, reaching a 

 weight of 15 Ibs. or more. 



2. S. griseum, (DeKay) Milner. SAUGER. GRAY PIKE 

 PERCH. Paler; fins all spotted; a smaller spine above 

 and one below the large opercular one; fins all black- 

 spotted; D. XIV I, 18; A. II, 12; lat. 1. 105. Great 

 Lakes; smaller than the preceding; perhaps the same 

 as the next. 



3. S. salmoneum, Raf. WHITE SALMON OF THE OHIO. 

 Whitish, faintly barred; much paler than S. ameri- 



15 



