140 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY III. 



iired. As for the expressiou, " browu spots at the base of the scales," 

 if really originating with Bosc, as appears to be the case, it may have 

 arisen from the confusion oH sucetta with melanops, which species inhab- 

 its the same waters, or it may simply refer to the obscure duskiness of 

 the bases of the scales, common to both species. 



I have examined many specimens of Minytrema melanops from the 

 Great Lakes, from various places in the Mississippi Valley, and frdin the 

 Tennessee, Alabama, Santee, and other Southern rivers, and can find 

 no differences of any importance. Indeed, the species seems to be very 

 little variable for one so widely distributed. 



Specimens in the United Slates National Museum. 



Number. 



Locality. 



Collector. 



7694 

 77G8 

 8434 

 11050 

 11144 

 11145 

 12449 

 17fe00 

 17808 

 20275 



Sandusky, Ohio 



Sandusky, Ohio 



Sandusky, Ohio 



Sandusky, Ohio 



Round Lake, Montgomery, Ala 

 Hempstead, Tex 



White River, Indiana 



Etowah River, Georgia 



Saluda River, South Carolina.. 



J. W. Milner. 

 J.W.Milner. 

 J. W. Milner. 

 J. W. Miluer. 

 Kumlien& Beau. 

 Kumlien & Earil. 

 Dr. Kenners. 

 D. S. Jordan. 

 D. S.Jordan. 

 D. S. Jordan. 



Genus ERIMYZON Jordan, 



Moxostoma Agassiz, Am. Journ. Sc. Arts, 1854, 200. (Not of Rafinesque.) 

 Erimyzon Jordan, Bull. Buflf. Soc. Nat. Hist. 1876, 95. 



Teretalus Cope, Synopsis of Fishes of N. C. 2d ed. Addenda, 1877. (Not cf Rafinesque.) 

 Ctjprinns, Catostomus, and Labeo sp.. Early Authors. 



Type, Cyprinus ohlongus Mitchill = Cyprinus sucetta Lac. 



Etymology, ipc, an intensive particle ; fii'^u, to suck. 



Head moderate, rather broad above : mouth moderate, somewhat in- 

 ferior, the upper lip well developed, freely protractile, the lower moder- 

 ate, infolded, y^-shaped in outline, plicate, with 12-20 plicae on each 

 side: lower jaw without cartilaginous sheath, rather stronger than usual, 



