60 TELEOSTEI: EVENTOGNATIII. — XII. 



decurved; eye 3 in head; 18 scales before D. Brown, a jet-black 

 lateral band; $ orange below. Head .'JJ; depth about ■\\. A. 8. 

 Scales t!-3J-;J. L. 2. Delaware 11. (Lat., steel-colored.) 



mm. Teeth without grinding surface; D. fin nearly opposite V. 

 o. Base of ('. witli a black spot; snout and base of D. red in 

 spring'. 



119. N. leuciodus (Cope). Slender, tlie snout rounded; mouth 

 obl'upie, the lower jaw nut projecting; lateral line nearly ."Straight; 

 12 scales before D. Silvery, a j)urplish lateral band. Head 4^. 

 A. 8. Scales 5-3y-3. L. 3. Holston R. (Xeu»cof, white.; 



00. Base of C. without black spot in adult; (J without red. 

 p. Eye rather larj^e, 3 to 3| in head. 



120. N. jejunus (Forbes). Slender; snout blunt; mouth rather 

 large, obli(jue; 16 scales before D. Pale, a silvery lateral band 

 over plumbeous. Head 4; depth 4^. A. 7. Scales 5-37-3. L. 3. 

 Penn. to Kans. (Lat., hungry.) 



121. N. scabriceps (Cope). Stout, liead heavy, flattish above, 

 with blunt snout; mouth little obli(pie; eye 3 in head; lateral line 

 decurved; fins small. Olive, with a silvery j)hunbeous lateral band. 

 Head 4; depth A\. A. 8. Scales (J-38-3. Kanawha li. (Lat. 

 scaber, rough ; ctpx, head.) 



pp. Eye very lar;;c, about 23 in head. 



122. N. ariommus (Cope). Body stout, compressed ; head 

 large; snout rather blunt; mouth moderate, obliijue, the jaws 

 equal; eye much longer than snout, larger than in any other of 

 our Cjiprinidce : 15 scales before D. ; lateral line much decurved. 

 Olivaceous, sides silvery. Head 3^ ; depth 4}. A. 9. Scales 

 6-39-2. L. 5. Ind. to N. Ala. (apt, an intensive prefi.x ; op-fxa^ 

 eye ; j. c. big-eyed.) 



yy. Base of anal comparatively elongate, its rays 10 to 12 ; D. inserted 

 behind V. 

 q. Scales comparatively small, closely imbricated along sides; scales be- 

 fore I), small, 20 to 30; teeth with narrow grinding surface; nuptial 

 colors brilliant. (Lythrurus .Jordan.) 

 r. A very distinct roundish black spot at base of first rays of D. 



123. N. ardens (Cope). Rkivfix. Body more or less elon- 

 gate, strongly compres.sed ; head rather pointed; mouth large, 

 rather oblicjue, the chin somewhat projecting: eye moderate; D. 

 high; about 30 scales before it; lateral line much decurved. 9 

 very i)ale, the dors;d spot usually ilistinct; ^ steel-bliH-, belly and 

 lower fins brick-red in spring. Head 4 J ; depth A\. D. 8. A. 11 

 or 12. Scales 9-.'j0-3. L. 3^. Minn, to Va. and Tenn., abundant. 

 Very variable, but the varieties (lifthruru/t, nfripes, ri/nunrrphnlux) 

 are hardly worthy of separate names. (Minuilm dipkmius Jordsoi 

 &. Gilbert; uot dipUinius iini.) (Lat., buruiug.) 



