FAMILY CYPRINIDAE 159 



species from Lake of the Woods and the Rapid River. Hubbs (1945) 

 re-examined their material and found their single specimen from Lake 

 of the Woods to be HyborhyncJms notatus and the specimens from 

 Rapid River to be Notropis comiitus frontalis. This species was se- 

 cured by Dr. Meek (1890) from the Cedar River at Austin. It is not 

 uncommon in streams of the Mississippi drainage and occurs occasion- 

 ally in lakes. It is absent from the Lake Superior drainage. 



This species was very common in Dobbins Creek a few miles east of 

 Austin on July 23, 1940. Dobbins Creek, a tributary of the Cedar River, 

 is a spring-fed stream with numerous deep pools and clear water. The 

 bottom is of sand and gravel. It flows rather swiftly in places. The 

 shiners were most numerous in the heads of the deeper pools, where, in 

 the swift current, they imparted a bluish shimmer before the outline 

 of the fishes themselves was visible. This coloration was due to the 

 reflection of the blue from the heads and dorsal halves of the minnows' 

 backs. 



SPOTFIN SHINER 



Notropis spilopterus (Cope) 



The spotfin shiner (Figure 26A) is dark silver in color and has a black 

 spot at the posterior end of the dorsal fin. The scales are 5, 38-40, 3. The 

 pharyngeal teeth are 1, 4 — 4. 1, with serrated edges. This minnow 

 reaches a length of about 4 inches. 



The spotfin shiner ranges from North Dakota and Iowa to Lake 

 Champlain and southward to Maryland and Alabama. This minnow is 

 rather common in Minnesota but seems to be most abundant in the 

 L^pper Mississippi and Minnesota rivers and their tributaries. It is 

 found occasionally in lakes. It is widely distributed over Wisconsin 

 (Greene, 1935) but absent from the Lake Superior drainage. 



According to Hubbs and Cooper (1936) the eggs are laid in the 

 crevices of boards and logs. 



REDFIN 



Notropis lutrensis lutrensis (Baird and Girard) 



This minnow is deep-bodied and has a small eye. The fins are dis- 

 tinctly reddish. The body is olivaceous above with greenish-gray and 

 silver sides. Spring males are brightly colored with orange and red on 

 the body and head. The teeth usually number 4 — 4, though 0. 4 — 4. 

 1 and 1, 4 — 4, 1 have also been reported. The scales are 6, 34-37, 3-4. 

 The dorsal fin has 8 rays, the anal fin usually 9. The redfin is similar 

 to Notropis spilopterus but does not have the black spot on the dorsal 

 fin. 



The redfin minnow ranges from South Dakota to Illinois and south- 

 ward to Texas (Jordan, Evermann, and Clark, 1930) . Specimens in the 



