198 FISHES. 



luzzle; D. I, 8; A. I, 10; lat. 1. 40. Streams of the 

 Ulegheny region from Penn. S. {Photogenis leucops^ 

 !!ope.) 



7. M. te/eseopus. Cope. Similar, but more slender 

 usually), and the mouth more oblique; dorsal still less 

 osterior, midway between snout and origin of caudal; 

 ea green; dorsal scales dark-edged; sides silvery; eye 

 irger, Sf in head; D. I, 8; A. I, 10; lat. 1. 38. Tennes- 

 ee River; perhaps a variety of the preceding. 



8. M. lirus, Jordan. Steel - Sided Minnow. 

 imaller than any of the preceding, and very slender ; 

 ie depth 4rf in length; the head small, 4J; scales very 

 mall, and very thin, so that young specimens appear 

 aked; the scales in front of dorsal, 25 in number, 

 specially small; fins small; dorsal far back; head in 

 Dring males strongly tuberculate, and the fins red; 

 jlor, very pale transparent green; sides with a very 

 istinot metallic steel-blue band; D. I, 8; A. 1, 10; lat. 

 45; L. 2^. Tennessee and Alabama Rivers; a strongly 

 larked species, related to the genus Lythrurus, but the 

 ■eth are sharp-edged. 



10. EPISEMA, Cope & Jor. White-Cheeked Shineks. 

 Photogenis, Cope — ^in part; £Jpisema, Cope & Jordan.) 



1. £, ariomma, (Cope) Jor. Big -Eyed Shineb. 

 eneral appearance of N". rubellus, but larger, reaching 

 length of nearly 5 inches; eye very large, 2^ in head, 

 latively larger than in any other of our Minnows; head 

 rge; bluish above, sides bright silvery; D. I, 8; A. I, 9; 

 t. 1. 40. White R., Indiana, abundant, but not yet 

 cognized elsewhere. 



2. E. scabrioeps, (Cope) Jor. Roitgh-Headbd Shineb. 



