196 Bulletin 47, United States National Museum. 



319. MOXOSTOMA BEEVICEPS, (Cope). 



Form of&Coregonus, with deep compressed body, small head and sharp- 

 ly conic snout, which overhangs the very small mouth. Caudal fin with 

 the upper lobe falcate, much longer than the lower, at least in the adult, 

 the lobes similarly colored. Dorsal fin short and high, falcate, the an- 

 terior rays 1 to 1 times base of fin, the free border much concave. 

 Depth 3^ in length. Head 5 to 5 in length. Eye small, 5 in head. D. 

 12 or 13; anal long falcate, reaching beyond front of caudal. Scales 

 6-45-5. Lower fins bright red. Ohio Valley and Great Lake region, 

 abundant in Lake Erie; our specimens from Toledo, Sandusky, and Cin- 

 cinnati. This may prove identical with M. lesueuri, but the species of the 

 far north has never been critically examined, (brevis, short ; -ceps, head.) 



Ptychostomus breviceps, COPE, Proc. Am. Phil. Soc. Phila., 1870, 478, Youghiogheny River, 



Pennsylvania. 



Moxosloma anisurum, JORDAN & GILBERT, Synopsis, 141, 1883, not of Rafinesque. 

 Moxostoma crassilabre, JORDAN, Man. Vert, Ed. v., 48, 1890, not of Cope. 

 Colosiomus aureolus, DE K.AY, and probably of COPE also, not of Le Sueur. 



320. MOXOSTOMA CONUS, (Cope). 



Body flattish, the dorsal outline elevated, the form like that of M. 

 coregonus. Head small and conic ; mouth exceedingly small, the snout 

 far overpassing it, the muzzle being much longer than in M. aureolum. 

 Dorsal rays 14, the fin high, its free border concave. Caudal deeply 

 forked, the upper lobe the longer. Eye large. Coloration smoky above, 

 some scales dusky at their bases ; sides pale ; lower fins white. Neuse 

 and Yadkin rivers, North Carolina. Perhaps inseparable from M. Irevi- 

 ceps. (conus, cone, from the form of the snout.) 



Ptychostomus conws, COPE, Proc. Am. Phil. Soc. Phila., 1870, 478, Yadkin River, North, Carolina. 

 Moxostoma conus, JORDAN, Bull. U. S. Nat. Mus. xn, 126, 1878 ; JORDAN & GILBERT, Synopsis, 141, 

 1883. 



321. MOXOSTOMA PCECILURUM, (Jordan). 



Body elongate, moderately compressed, somewhat elevated forward. 

 Depth 4t in length; head 4&. Mouth medium, the lips full. Dorsal 

 rays 13. Scales large, 5-44-4. Coloration usual, except that caudal fin is 

 red, the lower lobe jet black, the lower margin abruptly white ; other fins 

 all red, with blackish shadings. Size small. Southern Mississippi to 

 Eastern Texas (Pearl, Tangipahoa, and Sabino rivers) ; not rare in sandy 

 streams of the pine woods. (Troj/a'Aof, variegated; o'vpa iail.) 



Myxostoma pcecilura, JORDAN, Bull. U.S. Nat. Mus., x, GO, 1877, Tangipahoa River, Louisiana. 



(Type, No. 21096.) 

 Moxostoma pcecilurum, JORDAN, Bull. U. S. Nat. Mus., xn, 129, 1878; JORDAN & GILBERT, Synopsis, 



141, 1883. 



322. MOXOSTOMA RUPISCARTES, Jordan & Jenkins. 



( JUMP-ROCKS.) 



Body long and low, subterete ; head very short, broad, flat above ; snout 

 bluntish, projecting beyond mouth, 2 in head; eye moderate, 4^ in head. 

 Lips full, the folds somewhat broken into papillae. Scales smaller than 

 in related species, 6-50-6, 18 before dorsal. Dorsal low and small, its free 

 edge concave, its first ray H in head. Caudal short, lunate, its lobes 



