230 FISHES. 



2. STIZOSTETHIUM, Rafinesque. PIKE PERCHES. 



* Pyloric coeca three only, subequal, all long, about as long as the 

 stomach ; soft dorsal nearly as long as spinous dorsal ; body 

 more or less compressed. (Stizostethium.} 



1. S. vitreum, (Mitch.) Jordan & Copeland. WALL- 

 EYED PIKE. " SALMON." " DORY." GLASS - EYE. YELLOW 

 PIKE. Body slender, becoming compressed with age, 

 the back not especially depressed; dorsal spines high, more 

 than half length of head; eye 4 to 5 in head. General 

 color a heavy olive, finely mottled with brassy; a large 

 black spot on last rays of spinous dorsal, the fin other- 

 wise nearly or quite unmarked; D. XIII 1; 21; A. II, 

 12; lat. 1. 90. Size very large; this species reaches a 

 length of nearly three feet, and a weight of 20 to 30 Ibs. 

 Great Lake region and some Atlantic streams, north to the 

 Fur Countries; an abundant and valued food-fish. (Luci- 

 operca americana, Cuv.) 



Var. salmoneum, (Raf.) Jor. BLUE PIKE. " WHITE 

 SALMON." Body shorter, thicker and deeper, with slen- 

 derer caudal peduncle; mouth smaller; eye larger; dorsal 

 spines lower, 2 in head; coloration bluer, with silvery 

 instead of brassy mottlings; fin coloration darker; young 

 pale, with traces of vertical bars; D. XIV 1, 20; A. 

 II, 13; lat. 1. 95. This species or variety is very similar 

 to the preceding, but it is distinguished at sight by the 

 fishermen, and seems to rarely attain a length of more 

 than a foot. Lake Erie, Ohio River, and South. 



** Pyloric coeca 4 to 7, unequal, all small (shorter than the 

 stomach;) soft dorsal much shorter than spinous dorsal; 

 body thick, cylindric, depressed forwards, (Cynoperca, Gill 

 & Jordan.) 



2. S. canadense, (Smith) Jor. SAUGER. SAND PIKE. 

 GRAY PIKE. Body little compressed, broad across the 

 back and rather depressed; cheeks, top of head, etc., 



