194 CONTRIBUTIOMS TO NORTH AMERICAN ICHTHYOLOGY IV. 
277. M. ariommus (Cox>e) iov.-BUj-eyed Shintr. 
Body stoat, moderately elevated, somewhat compressed. Head 
heavy, bt'oad above, the snout moderate, somewhat decurved. Mouth 
moderate, oblique, the jaws equal, tbe upper lip on the level of the pu- 
pil, the maxillary reaching the front of the eye. Eye very large, in 
head, much longer than snout, larger than in any other of the Ameri. 
can Cyprinidoi. Fins moderate, the dorsal almost directly opposite 
veiitrals. Scales large, 15 in front of the dorsal. Lateral line much de- 
curved. Olivaceous ; scales above dark-edged ; sides and below bright 
silvery; no red. Head 3f ; depth 4^. D. 8; A. 9; scales 0-39-2; teeth 
2, 4-4, 2. L. 5 inches. Ohio Valley. A handsome species. 
{Fhotoyetiis ariommus Cope, Cypr. Peuu. 1866, 378 ; Cliola ariomma Jordim, Man. Vert. 
eil.-2,298.') * 
278. HI. scabriceps (Cope) Jor. 
Body rather stout, little compressed, the back slightly elevated. 
Head rather short and broad, the muzzle bluntish, somewhat decurved. 
Mouth rather small, terminal, oblique, the maxillary reaching front of 
orbit. Lateral line not much decurved. Fins rather small. Eye large, 
3 in head. Color plain olivaceous; scales dark-edged above; sides 
white, with a lateral band formed of dusky specks, this band running 
through the eye around the snout. Males tuberculate in spring. 
Smaller than M. ariommuH and less silvery. Head 4 ; depth 4^. D. 8 ; 
A. 8; scales 6-38-3 ; 2, 4-4, 2. Ohio Valley. I 
(Photofienis soabriceps Proc. Acad. Nat. Sci. Phila. 1867, 166: Cliola scabriceps \ 
Jordan, Man. Vort. ed. 2, 21)8. ) | 
279. J7I. jejUJins (Forbes) Jor. &. Gilb. 
Body ratlier slender. Head flatfish above, the snout blunt and 
rounded. Mouth rather large, oblique. Eye rather large, 3§ in head, 
equal to snout, less than interorbital space. Dorsal over ventrals. i 
Sixteen scales before dorsal. Color pale, with a broad silvery lateral ' 
band overlying a ])lumbeous shade; dorsal sometimes puuctulate. > 
Head 4; depth 4§. D. 8; A. 7; scales 5-37-3; teeth 2, 4-4, 1. L. 3 ; 
inches. Illinois River. ; 
(Episemn jejuna Forbes, Bnll. Ills. Lab. Nat. Hist, ii, 60, 1878.) ! 
280. HI. leuciuiliis (Cope) .Jor. '! 
Body rather slender. Muzzle rounded in profile. Mouth oblique, 
■the mandible not projecting. Lateral line nearly straight. Twelve * 
rows of scales in front of the dorsal fin. Olivaceous; scales above 
dark- edged ; sides silvei-y; with a purple baud ; a black spot at base of | 
