312 Field Museum of Natural History — Zoology, Vol. VII. 



Color olivaceous to greenish; each scale with a green spot, these 

 forming lateral stripes along the rows of scales; sides with 7 or 8 

 dusky bars; 3 or 4 wavy lines of bluishgreen on cheek below e\'e ; 2 or 3 

 of them continued backward across opercle; bony portion of opercular 

 flap dark-green or black; the membranous portion coppery to pur- 

 plish; fins all dusky; soft dorsal and anal with large black blotch at 

 base of last rays. 



Length from 4 to 7 inches. 



This species inhabits still and sluggish waters from the Great Lake 

 Region to Ohio and the Rio Grande Basin. 



Fox River, Berwyn, Illinois; Chicago River, Edgebrook, Illinois; 

 Butterfield Creek, Elliotts Park, Illinois; Des Plaines River, Liberty- 

 ville, Illinois; Salt Creek, Lyons, Illinois; Thorn Creek, Thornton, 

 Illinois; Hickory Creek, Alpine, Illinois; Hickory Creek, Marley, 

 Illinois; Hickory Creek, New Lenox, Illinois; Lake George, Indiana; 

 Lagoon, Buffington, Indiana. 



Lepomis euryorus McKay. McKay's Sunfish. 



Head 2.6 to 2.9 ; depth 2.0 to 2.3 ; D. x, 1 1 or 12; A. 111, g or 10 

 scales 43 to 45. 



Body moderately elongate, compressed; mouth moderate, max- 

 illary reaching front of orbit; supplemental maxillary developed; 

 maxillary 2.6 to 2.9 in head; jaws about equal; eye 3.8 to 4.3 in head; 

 snout 3.7 to 4.2; teeth present on vomer and palatines; opercle 

 produced backward, sharply rounded posteriorly, the fleshy margin 

 wide; gill rakers well developed, the longest 3 in diameter of eye; 



Fig. 62. McKay'S Sunfish. 



Lepomis euryorus McKay. (After Forbes and Richardson.) 



