FISHES 83 



N. leuciodus (Cope). Length 75 mm.; head 4.5; depth 5; color oliva- 

 ceous; sides silvery, with a purplish lateral band; a black spot at base of 

 tail fin; scales 5-39-3: basin of the upper Tennessee; very common* 

 not in mountain streams. 



N. telescopiis (Cope). Length 100 mm.; head 4.25; depth 4.75; color 

 pale greenish, the scales dark edged; rays of anal fin 10; scales 5-35 to 38-3 ; 

 mouth very oblique; eyes very large: basin of the upper Tennessee, 

 in cold streams; very common; also in Arkansas. 



N. stilhius Jord. Length 75 mm.; head 4.2; depth 5; color pale 

 green; sides with a broad silvery band and numerous dark dots which 

 form a blotch at the base of the tail fin; rays of anal fin 10; scales 5-37-2 ; 

 teeth 2, 4-4, i; eyes very large: Tennessee and Alabama; common. 



N. pilsbryi Fowler. Length 70 mm. ; head 4; depth 4; color olive, the 

 scales finely speckled above the lateral line; rays of anal fin 10; scales 

 6-37-3 or 4: Illinois. 



.V. atherinoides Raf. Length 150 mm.; head 4.6 depth 5.5; color 

 translucent green; sides silvery; rays of anal fin 11; scales 5-38-3; body 

 long and slender; mouth very oblique; eyes very large: Great Lakes 

 region and Ohio and Mississippi Valleys; northward to Winnipeg; 

 common in lakes and river channels. 



N. dilectus (Gir.). Length 85 mm.; head 4.6; depth 4.5; color very 

 pale; snout and base of fins rosy; rays of anal fin 11; scales 7-38-3; 

 body elongate; mouth oblique: basin of the Ohio to the Rio Grande; 

 common. 



.V. riibrifrons (Cope). Length 70 mm.; head 4; depth 5; color oliva- 

 ceous; sides silvery; rays of anal fin 10; scales 6-3 9-3; mouth very oblique: 

 New York and western Pennsylvania to southern Michigan; southward 

 to Kentucky and Kansas; very common in clear streams, especially in 

 the Ohio Valley. 



N. photogenis (Cope). Length 75 mm.; head 4.25; depth 5.5; color 

 oHvaceous; sides and belly silvery, with dark specks along the lateral 

 line rays; rays of anal fin 10; scales 6-40-3, 25 before the dorsal fin: 

 basin of the Youghiogheny and Kanawha Rivers, and southward; 

 common in clear streams. 



N. scepticus (J. & G.). Length 75 mm.; head 3.75; depth 4.5; color 

 pale green; sides with a silvery band; rays of anal fin 10; scales 6-38-3, 

 14 before the dorsal fin; eyes very large: the Cape Fear to the Santee 

 Rivers; common. 



N. micropteryx (Cope). Length 70 mm.; head 4.5; depth 5.5; color 

 olivaceous; sides silvery, with a dusky blotch at the base of the tail fin; 

 rays of anal fin 10; scales 5-38-2; body very slender, compressed; mouth 



