28 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY 1. 



Linney from Salt Eiver, Kentucky. Au examination of Professor Cope's 

 types of Eybopsis longiceps has convinced me of the identity of that 

 species with Raflnesque's. It is perhaps best to unite Eybopsis with 

 Luxilus. The distinctive character of the high scales, so noticeable 

 in L. cornutus, fades by insensible degrees into the ordinary Eybopsis 

 type. 



Under Luxilus the following subgeneric sections are probably con- 

 veniently recognizable : 



a. Luxilus: type cornutus. 



b. Alburnops: type blennius. 



c. Eybopsis: type gracilis. 



d. Eudsonius: type hudsonius. 



* XVI. Genus, SHINER, LuxUus, Luxlle. (p. 47.) 



Eypsilepis Baird, 1854. 



Eybopsis Ag., 1854. 



Alburnops and Eudsonius Grd., 1856. 



Luxilus Jordan, 187 6. 



1st subgenus, CHROSOMUS. (p. 47.) 



39th species, Red-Belly Shiner, LUXILUS ERYTHROGASTER, Luxile 

 erythrogastre. (p. 47.) 



Cheosomus erythrogaster Eaf. 



Description characteristic, although slightly erroneous. The colora- 

 tion described is that of C. oreas Cope, rather than that of the erythro- 

 gaster of Agassiz. 



1 2d subgenus, LUXILUS. (p. 48.) 



=zPlargyrus Girard (nee Eafinesque). 

 = Eypsilepis Baird and most authors. 

 T= Luxilus m. 



* Difference from Minnilus : Vent posterior or nearer to the tail. Moutii rather large, 

 commonly with lips and equal jaws. Scales rather large. Preopercule with an angular 

 suture. 



tMouth rather large, with small flat lips, jaws equal, scales large. 



