166 NORTHERN FISHES 



at the base of Ihc tail through the eye and around the snout. The 

 intestine is much coiled. The teeth are 4 — 4 and are slightly hooked. 

 The scales arc 36-38. 



Greene (1935) reported the range of this minnow as from southern 

 Wisconsin to Okhihoma and Arkansas. This species was reported by 

 Greene from the driftless area of southwestern Wisconsin. It is a south- 

 ern species. Hubbs has identified specimens from the Cedar River in 

 Minnesota, but none have been collected by the University of Minne- 

 sota. It probably occurs in the small streams of the southeastern part 

 of the state. 



GENUS Hybognatbiis Agassiz 



• BRASSY MINNOW 



Hybognathus hankinsom Hubbs 



The brassy minnow (Figure 26C) is difficult to distinguish from 

 Hybognathiis nuchalis, which it closely resembles. The scales have 

 many weak radii instead of a few strong ones and the head is more 

 blunt and the fins more rounded than in nuchnlis. The dorsal fin is 

 rounded instead of pointed. The intestine is more than twice the length 

 of the body. 



The brassy minnow ranges from North Dakota through southern 

 Ontario to the Lake Champlain region and southward to Colorado, 

 Nebraska, Iowa, and southern Michigan. This species was reported by 

 Greene (1935) from many streams in the Mississippi, Lake Michigan, 

 and Lake Superior drainages in Wisconsin. It seems to be common in 

 many small streams throughout Minnesota, including the Lake Supe- 

 rior drainage. 



WESTERN SILVERY MINNOW 



Hybognathus nuchalis nuchalis Agassiz 



The western silvery minnow has a very slender, silvery body. The 

 dorsal and anal fins each have 8 rays. The scales are 5-38-4. This min- 

 now, which reaches a length of 6 inches, is distinguished by an extreme- 

 ly long intestine, 7 to 10 times the length of the body. 



This species ranges from Montana to Ohio and southward to the Gulf 

 States. It is common in small streams throughout Minnesota, especially 

 those with muddy bottoms. It occurs occasionally in lakes, particularly 

 those in the southern part of Minnesota. Greene (1935) reported this 

 species from the Mississippi River and numerous tributaries of the 

 Mississippi in Wisconsin. It was reported by Jordan, Evermann. and 

 Clark (1930) for the Red River of the North as Hybognathus argyritis 

 (Girard) . 



