FISHES OF MINNESOTA 39 



the lower fins red. Body considerably elongate, almost cylindrical; 

 head long and flattened above; mouth entirely on the under side of 

 the head. Pectoral fins very large in the males. Head contained 



4 times in the length. Depth 5. Eye in about the middle of the 

 head, contained 2 times in the snout and 5 times in the head. Dor- 

 sal fin with 8 rays. Anal 7. Scales 14-65-8. Teeth 2, 4-4, 2. Length 



5 inches. Rather common in the state, especially in the northern 

 part. Specimens have been taken from the Upper Mississippi and 

 tributaries (Nat. Hist. Surv., 1892-3-5), where it is quite common. 

 Specimens collected by Woolman & Cox in Dougherty Creek at 

 Brown's Valley and the Pomme de Terre River at Appleton are 

 listed by Mr. Woolman (Report U. S. Fish Comm., 1893) as R. 

 cataractce dulcis (Girard). I have carefully examined some of the 

 above specimens and compared them with the typical R. c. dulcis 

 from the Black Hills and believe that the Minnesota form is simply 

 R. cataractce and not the variety. Representatives of the genus 

 Rhinichthys in the state, however, need some careful study. 



Rhinichthys atronasus (Mitchill). Black-nosed Dace. 



Dark above, sometimes rather spotted; sides with a dark band 

 which passes through the eye and along the snout; below the dark 

 band there is a light lateral band; under parts light, silvery; a red 

 lateral band instead of the light in spring males, their lower fins 

 also red, the red fading to orange late in the summer. Body rather 

 cylindrical, elongate; snout medium, not projecting much beyond 

 the mouth; barbel small. Fins rather small. Head contained 4 

 times in the length. Depth 4i. Eye small, contained 1^ times in 

 the snout, 4^ times in the head. Dorsal fin inserted midway be- 

 tween the nostrils and the base of the caudal, contains 7 rays. 

 Anal 7. Lateral line with 64 scales. Teeth 2, 4-4, 2. 



Quite a common fish in this state. Specimens have been re- 

 corded from the lakes and streams of the Upper Mississippi, where 

 it is common (Nat. Hist. Surv., 1892-3-.5); Des Moines River, Win- 

 dom, not common (Cox, 1894). 



Rhiniclithys atronasus lunatus (Cope). 



Somewhat heavier than R. cataractce: much mottled in color; 

 no dark lateral band; mouth more inferior. Eye smaller, con- 

 tained 5 times in the head. Depth contained 5 times in the length. 

 Scales 62. This vaiiety is referred to as probably the common 

 form in Wisconsin and Minnesota in Jordan & Evermann's Fishes 

 of North and Middle America. Specimens from Sand Hill River, 

 Minnesota, are described as R. arcnatus Garman, Science Observer, 

 1881, p. 62. 

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