26 



Steel blue, with golden streaks, silvery below, fins pale, a dark 

 spot behind opercle ; males tuberculate in spring with belly 

 and lower fins rosy. Scales 6-41-3. D. 8, A. 9. Length up 

 to 8 inches. 



Common and abundant throughout the greater part of the 

 United States, ranging into Canada. A species which likes 

 running water and is rather delicate in the aquarium. It some- 

 what resembles the roach (Abramis). Often associates with the 

 black- nosed dace. 



Notropis amoenus Abbott. 



Body elongate, compressed; eyes large; mouth large, oblique. 

 Lateral line much decurved. D. 8, A. 10. Scales 6-39-3. 

 Translucent green, sides silvery, with sometimes a faint plum- 

 beous band ending in an obscure spot. Length 3^ inches. 



Clear streams east of the Alleghanies, from Raritan to 

 Neuse. Perhaps a variety of N. photogenis (Cope). Abbott 

 mentions it from near New Brunswick, N. J. 



Rhinichthys cataractae C. & V. 



Long-nosed Dace. 



Body elongate, subterete ; a barbel present, snout long, 

 projecting beyond the mouth. Dusky olive, mottled ; no dis- 

 tinct lateral band ; dusky spot on opercle ; male in spring 

 with lips, cheeks and lower fins crimson. D. 8, A. 7. Scales 

 14-65-8. Length to 6 inches. 



Northern United States in mountain streams. Not found by 

 me. Occurs in New England and in the Delaware valley. 

 Ayres 1 described it from Long Island as Leuciscus nasutus. 

 Rhinichthys atronasus (Mitch.). 

 Black-nosed Dace. 



Body elongate ; head large ; barbel small, snout not much 

 projecting beyond mouth ; eye small. Dark olivaceous, mot- 

 tled above, a black or brown lateral band, bordered on each 

 side with paler. Males in spring, crimson on lateral band and 

 lower fins, later changing to orange. D. 7, A. 7. Scales 4-63-8. 

 Length 3 inches. 



A very beautiful and active fish, found in the swiftest streams 



l W. O. Ayres, " Enumeration of the Fishes of Brookhaven, L. I., etc." 

 in Boston Journal of Natural History, Vol. IV, 1844. 



