31. CYPRINID.E NOTEMIGONUS. 249 



grinding surface, the edges of which are more or less creuate. Alimen- 

 tary canal short, though rather longer' than the body. Size rather 

 large. As here understood, Notemigonus differs from the European 

 Abramis (Bream) only in the much shorter anal fin from 9 to 20 rays in- 

 stead of 30 to 40. All its species are American. There is much varia- 

 tion in the length of the anal and in the form of the mouth among the 

 species left in Abramis, and a reunion or a different division of the 

 group may be uecessar3 T . (vw7c, back 5 y^t, half; Y^ VO ^J- angle; the 

 back being almost cariuated.) 



* Insertion of dorsal midway of body or nearer snout than base of caudal. 

 tAnal rays 9 or 10. 



415. BT. gardoaaeus (C. & V.) Jor. 



Body moderately elongate, compressed. Head obtuse. Isthmus small. 

 Mouth small, oblique, the lower jaw included. Eye 4 in head. Dorsal 

 nearly midway of body, little behind veutrals. Olivaceous. Head 5; 

 depth 3f. D. 10; A. 9; teeth 5-5, with grinding surface and serrated 

 edge. Scales 7-39-3. South Carolina. One specimen known. 



(Lenciscus gardoneus Cuv. & Val. xvii, 316: Chondrostoma gardoneum Cope, Trans. 

 Amer. Phil. Soc. Phila. 1866, 395: Leuciscus gardoneus Giinther, vii, 258.) 



416. W. lucidns (Grd.) Jor. 



Body rather elongate, subfusiform. Head moderate. Snout subcon- 

 ical, tapering. Mouth somewhat oblique, larger than in the other spe- 

 cies, the maxillary reaching eye. Eye large, 3 in head. Dorsal nearer 

 tip of snout than caudal. Scales rather large, much deeper than long. 

 Grayish above, yellowish beneath. Head 4^. D. S; A. 10. Canadian 

 River. (Girard.) 



(Luxilus lucidus Grd. Proc. Acad. Nat. Sci. Phila. 1856,203, and U. S. Pac. R. R. 

 Surv. x, 282.) 



tt Anal rays about 13. 



417. IV. leptosomus (Grd.) Jor. 



Body rather elongate, slender, the back elevated. Head small and 

 short, its profile continuous with that of the back- Mouth small, quite 

 oblique, the maxillary not reaching the front of the large eye. Eye 3 

 in head. Insertion of dorsal fin about midway between snout and base 

 of caudal. Anal fin high and long. Bluish, silvery below. Head 5; 

 depth 3f. D. 9; A. 13; Lat. 1. 55. Texas. (Girard.) 



(Luxilus leptosomus Grd. Proc. Acad. Nat. Sci. Phila. 1856, 203, and U. S. Mex. 

 Bound. Surv. Ichth. 60: Abramis? leptosomus Giiuther, vii, 306.) 



** Insertion of dorsal nearer base of caudal than snout, 

 a. Anal ravs about 11. 



