31. CYPRINIDiE NOTEMIGONUS. 249 



grinding snrface, the edges of wliicb are more or less crenate. Alimen- 

 tary canal short, tbougli rather longer than the body. 8ize rather 

 large. As here understood, Notemifjonm difft?rs from tlie European 

 Abramis (Bream). oidy in the much shorter anal fin — from t) to I'O 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 necessary, (vwro-, back; vj/xi, half; yovo::, angle; the 

 back being almost cariuated.) 



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

 tAual rays 9 or lU. 



41i5. N. g:ai'dOEiBeus (C. & V.) Jor. 



Body modera tely elongate, compressed. Head obtuse. Isthmus small. 



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



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



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



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



{Lciiciscus gardoneus Cuv. & Val. xvii, 310: Chondrostoma gardoneuni Cope, Trans. 

 Anier. Phil. Soc. Phila. 1866, 395: Lcuciscus gardoueus Giiuther, vii, 258.) 



416. N. lucidlis (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. 8 ; A. 10. Canadian 

 Eiver. (Girard.) 



(Luxilus lucidus Grd. Proc. Acad. Nat. Sci. Phila. 1856, '2U3, and U. S. Pao. R. K. 

 Surv. X, 282.) 



tt Anal rays about 13. 



417. IV. Icptosonius (Grd.) Jor. 



Body rather elongate, slender, the back elevated. HejMl 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 tin about midway between snout and base 

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

 depth 3,^. I). 0; A, 13; Lat. 1. 55. Texas. {Girard) 



{LhxUuh lepioHomiis (ird. Proc. Acad. Nat. Sci. Phila. 1856, 20:5, and T''^. S. Mex. 

 Bound. Surv. Ichth. 60: Ahramift? leptoHomun Giiuther, vii, 306.) 



** Insertion of dorsal nearer l)asr of caudal than snout. 

 a. Anal ravs about 11. 



