yS VERTEBRATE ANIMALS OF THE UNITED STATES 



stout; mouth oblique: Illinois River to Montana; southward to Kansas; 

 common in shallow, sandy streams. 



N. procne (Cope). Length 60 mm.; head 4.75; depth 5.25; color 

 olivaceous, with a dark lateral band; scales 5-32 to 34-3, 13 before 

 the dorsal fin; rays of anal fin 7; body slender: Delaware River to the 

 Neuse, in coastal streams; very common. 



N. kanawha Jordan & Jenkins. Length 85 mm.; head 4.4; depth 

 4.6; color translucent green; sides silvery; rays of anal fin 9; scales 

 4-37-2, 16 before the dorsal: tributaries of the Kanawha River, Virginia. 



N. spectrunculus (Cope). Length 75 mm.; head 4; depth 5.5; 

 color pale olive; silvery white below; a dark band along the sides and 

 a conspicuous black spot at the base of the tail fin; rays of anal fin 9; 

 scales 37, 15 before the dorsal fin: head waters of the Tennessee River; 

 very common. 



N. topeka Gilbert. Length 90 mm.; head 4; depth 3.6; color oli- 

 vaceous, with a dusky lateral band ending in a small caudal spot; 

 males in spring and summer with sides and lower fins bright red; 

 scales 5-35-4, 14 before the dorsal fin: western Iowa and eastern 

 South Dakota to Kansas; common. 



N. gilberti Jordan & Meek. Length 60 mm.; head 4; depth 5; 

 color light olive with dusky streaks and specks; rays of anal fin 9; 

 scales 5-35-4, 17 before the dorsal fin; body slender: western Illinois 

 to eastern Colorado; common in muddy streams. 



N. nocomis Evermann. Length 60 mm.; head 4.3; depth 5; color 

 yellowish, with dark specks and a dark lateral band; scales 6-36-3; 

 teeth I, 4-4, i; eyes large: Trinity, San Marco and Comal Rivers, 

 Texas; common. 



N. shumardi (Gir.). Length 75 mm.; head 3.75; depth 4.2; color 

 olivaceous with dusky streaks and dark specks; eyes very large; scales 

 5-36-2, 12 before the dorsal fin; rays of anal fin 7: Ohio and Tennessee 

 basins to Iowa and the Ozark region; common towards the south in 

 cold streams. 



N. hudsonius (Dewit Clinton). Spot-tail; shiner. Length 150 

 mm.; head 4.75; depth 4; color very pale; sides with a broad silvery 

 band; usually a black spot at the base of tail fin; teeth i or 2, 4-4, o, i 

 or 2; scales 5-39-4, 18 before the dorsal fin; body elongate; head short; 

 muzzle blunt: Dakota to New England; southward in coastwise 

 streams to Georgia; in large rivers and lakes; abundant in the Great 

 Lakes; very variable. 



N. lutrensis (Baird & Girard). Redfin. Length 75 mm.; head 

 3.6; depth 3 to 4; color of male steel blue; male tuberculate in spring 



