160 CONTRIBUTIOXS TO NORTH AMERICAN ICHTHYOLOGY IV. 
meJanohts Raf. Ichtli. Oli. 58: nijT)orlujncl\us pcrspicuus Grd. Proc. Acad. Nat. Sci. Pliila. 
1856, 18^5: Huhognaihus per spicuus GxmWu^r, vii, 185.) 
** Angle of mouth with a minute, thickish barbel. 
194. II. stipercilaosiis Cope. 
Head broader, more ridged above. Caudal and anal fins more dusky ; 
otherwise like the last, from which it may be distinguished only by the 
lu’esence of the small barbel. With the last, equally widely distrib- 
uted, and even more abundant. Probably a variety. 
(Cope, Journ. Acad. Nat. Sci. Phila. 1868, 234; Jordan, 289.) 
81. — EXOGIjOSSfiJlTI Rafinesque. 
Cut-Ups. 
(Rafinesque, Journ. Acad. Nat. Sci. Phila. i, 420, 1818: type Exoglossum lesueurianum 
Il‘dt\—C!i2}riniis maxillingua Le S.) 
Body moderately elongate, little compressed. Mouth peculiar, the 
mandible being contracted and incurved, its outline strongly three- 
lobed. This appearance is due to the fact that the dentary bones lie close 
together, parallel, and are united throughout their length, instead of 
forming a, broad arch, as in all other Cyprinoid fishes. The lower lip is 
represented by a broad tleshy lobe on each side of the mamlible. Up- 
jier jaw not protractile. Upper lip thick, somewhat ])licate. Pharyn- 
geal bones small. The teeth hooked, without grinding surface, 1, 4-4, 1. 
Scales moderate. Lateral line complete. Pins without spines. Dorsal 
slightly behind ventrals. Anal rays 7-8. Isthmus brohd. (fill-rakers 
weak. Pseudobrauchim present. Air-bladder normal. Alimentary 
canal short ; ])eritoneum white. Size moderate. One of the most 
strongly marked genera of Cyprinidcc^ with a single species. out- 
side; yXuxrtja^ toilgue.) 
195. E. iBiaxDBUasBg'isii (Le Sueur) Hahleman. — Cui-Ups ; Stone-ioter. 
Bod}^ rather stout, little compressed. Head large, broad and flattish 
above, with tumid cheeks. Mouth moderate, slightly oblique, the end 
of the maxillary not reaching the line of the orbit. Upper jaw longer 
than lower. Scales rather crowded anteriorly, those in front of the 
dorsal small. Color olivaceous; smoky or dark above; a blackish bar 
behind opercle, and a dusky shade at the root of the caudal in the 
young; fins unmarked. Head 4; depth 4f. I). 8; A. 7 ; scales 8-53-5; 
teeth 1, 4-4, 1. L. C inches. AVestern Pew York to Virginia; abun- 
dant in the Susquehanna Basin, but not widely distributed. One of the 
most singular of the Cyprinidcc, distinguished at sight by its three- 
lobed lower jaw. ' 
(Cyjyriuus maxillingua Le Sueur, Jouru. Acad. Nat. Sci. Pliila. i, 85; Gunther, vii, 
188; Jordan, 308; Coiie, Cyiir. Penn. 1866,360.) 
