294 FISHES. 



3. L. coccogenis, (Cope) Jordan. Red-Cheeked 

 Shixer. Steel blue, sides silvery; dorsal, caudal, and 

 pectorals red in the male; adults of both sexes with the 

 upper jaw, base of dorsal and a vertical streak down the 

 cheeks, bright orange red, the latter mark appearing 

 like a brand; dorsal and caudal with a broad dusky bar; 

 slimmer than cornutus ', depth 4-g- in length, about equal 

 to length of head; mouth very oblique, the lower jaw 

 projecting (excejDting in tuberculate males); D. I, 8; A. 

 I, 9; lat. 1. 42. Tributaries of the Tennessee R., abund- 

 ant; a beautiful and very distinct sjDCcies. 



fff Dorsal behind veutrals; mouth small; scales little 

 imbricated. 



4. L. lacertosus, Cope. A large dull-colored species 

 with broad, deep head, 4 in length, and large scales; 

 mouth wide; eye large; silvery, dusky above. Tennessee 

 River. 



5. L. plumbeolus, Cope. Body compressed, elongate; 

 lower jaw projecting; color uniform silvery; A. I, 9; lat. 

 1. 39; teeth 2, 4. Great Lakes. 



6. L. chalyb(3us, Cope. Pigmy Mixnow. Muzzle 

 ilat; head 4 in length; caudal peduncle abruptly slender, 

 lateral band very distinct, shining black; A.I, 8; lat. 1. 

 3G. Penn., N. J.; one of the smallest of the Cyprinidm; 

 length 1|^ inches; (y esQmh\e^ Hemitreinia Mfrenat a.) The 

 males in the spring are brilliantly colored, the lower parts 

 being largely orange. 



7. L rubricroceus, Cope. Crimson Fall Fish. A 

 small, rather deep-bodied species having somewhat the 



