April, 1910. Fishes of Chicago — Meek and Hildebrand. 271 





Fig. 36. Silvery Minnow. 



Notropis jejunus (Forbes). (From Forbes and Richardson.) 



blunt and rounded; mouth rather large, slightly oblique, the tip of 

 the upper lip above the level of the inferior margin of the pupil ; max- 

 illary scarcely reaching front of orbit, its length 2.8 to 3.4 in head; 

 snout 3.1 to 3.6; teeth 2, 4-4, 2, grinding surface, if present, narrow 

 and irregular; alimentary canal .9 to 1.2 times the length of the body; 

 dorsal fin almost directly over ventrals, about equidistant between 

 the tip of snout and base of caudal fim; lateral line complete, little 

 decurved; scales on sides rather large, thin and rounded, 13 to 15 in 

 series before dorsal fin. 



Color pale, sides silvery with a broad lead-colored band; a ver- 

 tebral streak; no caudal spot; fins all plain. 



Length 2 to 2X inches. 



This small species ranges from Winnipeg to Kansas and Pennsyl- 

 vania. 



Notropis hudsopius (DeWitt Clinton). Spot-tailed Minnow. 



Head 4.1 to 4.7; depth 4.0 to 4.5; D. 8; A. 8; scales 36 to 39. 



Body elongate, robust, compressed; head short; mouth rather 

 small, slightly oblique, the tip of upper lip below level of lower margin 

 of pupil ; maxillary not reaching eye, its length 3.7 to 4. 5 in head ; snout 

 bluntish, its length 3.2 to 3.5 in head; diameter of eye 2.8 to 3.5 in 

 head; teeth variable, o, i or 2, 4-4, 2, i or o, with narrow grinding 

 surface, and slightly hooked tips; alimentary canal i to 1.4 times 



Fig. 37. Spot-tailed Minnow. 



Notropis hudsonius (De W. Clinton). (From Forbes and Richardson.) 



