188 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



Var. cyastens Cope. 



Scales of the dorsal and ventral regions very small, 31-40 in front of 

 the dorsal fin. Scales 10-40-4. Coloration extremely dark ; blue-black 

 above ; fins ohiefly black. Lake Superior. 



{Hypsllepls cornutus eijaneus Cope, Proc. Acad. Nat. Sci. Phila. 1867, 160.) • 



261. M. selene Jordan. 



Body elongate, compressed. Head short and stout, rounded above. 

 Mouth terminal, oblique, the lower jaw included. Muzzle blunt and 

 short. Eye very large, 3 in head, wider than snout and than interor- 

 bital space. Dorsal fin verj" high. Lateral line little decurved. Bright 

 steel-blue above, with a very distinct silvery band overlying a jilum- 

 beous shade ; a dark spot at base of caudal ; a dark vertebral line ; 

 cheeks, belly, and iris white ; fins i^lain, probably red in spring. Head 

 U ; depth 4^. Scales 4-40-3 ; teeth 2, 4-4, 2. Lake Superior. 



{Luxilus stlene Jordan, Bull. U. S. Nat. Mus. x, GO, 1877.) 



U Species of moderate size, with the scales short and deep, hut less closely imhricated 

 than in the preceding ; body elongate, not much elevated ; mouth large, 

 oblique, the lower jaAv projecting; dorsal fin inserted behind ventrals. 



263. M. COCCO0"enBS (Cope) Jordan. — Eed-clweked Shiner. 



Body elongate, compressed, not at all elevated. Head straight and 

 rather i)ointed. Mouth large, very oblique, the premaxillary nearly on 

 a level with the pupil, lower jaw projecting beyond upper, maxillaiy 

 reaching past front of eye, Eye very large, 3^ in head. About 20 scales 

 in front of the dorsal fin. Back olivaceous; the scales dark-edged; 

 belly and sides silvery, rosy in spring males ; a dusky scapular band ; 

 a scarlet bar like a brand down the line of the preopercle ; muzzle and 

 upper lip red ; a red axillary spot ; outer half of dorsal black, lower half 

 yellowish ; outer part of caudal dusky, base paler ; a faint lateral streak 

 and a dark vertebral line ; lower fins white ; snout swollen and tubercu- 

 late in spring males; females silvery, witb only traces of red marki^igs. 

 Head 4 ; depth 4^. Scales 7-42-3 ; teeth 2, 4-4, 2. L. 5 inches. Cum- 

 berland to Savannah Elvers ; abundant in the mountain streams. 



{Hi/jjsllcjyis coccogenis Cope, Proc. Acad. Nat. Sci. Phila. 1867, 160 : Leuciscus coccogcnis 

 Glinther, vii, 253.) 



263. M. zonistius Jordan. 



Body rather stout, compressed, the back somewhat elevated, the 

 form that of a young Minnilus cornutus. Head heavy, broad and flatfish 

 above, the profile evenly descending. Mouth large, but smaller than 

 in coccogenis, oblique, the jaws about equal, the upper lip opposite the 



