April, 1910. Fishes of Chicago — Meek and Hildebrand. 263 



Pimephales notatus (Rafinesquej. Blunt-nosed Minnow. 



Head 4.0 to 4.4; depth 4.3 to 4.8; D. 8 or 9; A. 7; scales 41 to 44. 



Body elongate, little compressed; head small, flat above; snout 

 blunt, the small mouth subinferior, tip of upper lip on a level with 

 inferior margin of orbit; maxillary 3.8 to 4.3 in head; diameter of 

 eye 3.5 to 4.4; teeth 4-4; alimentary canal about twice length of the 

 body; peritoneum black ; lateral line usually complete; scales smaller 

 on anterior part of body, about 23 in a series before dorsal fins. 



Fig. 28. Blunt-noseo Minnow. 



Pimephales notatus (Raf.). fProm Forbes and Richardson.) 



Color pale olivaceous, sides with a dark band from snout to base 

 of caudal; a dark caudal spot; dorsal fin with a dark blotch in front 

 on first rays ; breeding males darker, the head often black. 



Length a to 3K inches. 



This fish has about the same range as the preceding but is usually 

 found in clear water. It is one of the most abundant minnows in the 

 Chicago area. 



Fox River, McHenry, Illinois; Dead River, Beach, Illinois; Bull 

 Creek, Beach, Illinois; Pettibone Creek. North Chicago, Illinois; 

 Ravine, Glencoe, Illinois; Lake Michigan, Chicago, Illinois; Des 

 Plaines River, Chicago, Illinois; Thorn Creek, Flossmore, Illinois; 

 Chicago River, Edgebrook, Illinois; Salt Creek, Lyons, Illinois; 

 Thorn Creek, Thornton, Illinois; Butterfield Creek, Elliotts Park, 

 Illinois; Hickory Creek, Marley, Illinois; Hickory Creek, New Lenox, 

 Illinois; Wolf Lake, Robv, Indiana. 



Genus Opsopti^oduH Hay. 



Body elongate, moderately compressed; mouth very small, ter- 

 minal; maxillary protractile; no barbels; teeth 4-5 or 5-5 -with ser- 

 rated edges, tips hooked; alimentary canal about length of the body; 

 peritoneum pale; scales 37 to 42 in lateral series. 



