FAMILY V. CYPRINID^;. 57 



Notemigonus Rafinesque, Jour. Phys. Chem. et Hist. Nat. Paris, 

 1819,421. (Type, Notemigonus auratus Rafinesque =Cyprinus 

 crrysoleucas Mitchill.) 



Body sub-elliptical, strongly compressed; dorsal and ventral out- 

 lines similar; belly behind ventral fins forming a keel over which 

 the scales do not pass; head small, conic; mouth small, oblique; no 

 barbels; dorsal fin inserted behind ventrals; anal fin long, its rays 

 (American species) 9 to 18; lateral line complete, much decurved, 

 concurrent with ventral outline; alimentary canal short, a little 

 longer than the body; teeth 5-5, edges crenate. 



48. Abramis chrysoleucus (Mitchill). GOLDEN SHINER; BREAM. 



Cyprinus crysoleucas Mitchill, Rept. Fish. N. Y., 23, 1814; New 

 York. 



Notemigonus chrysoleucus Jordan, Bull. U. S. Geol. Sur., 1878, 

 404; Brownsville, Texas. 



Abramis americanus Giinther, Cat., vn, 305, 1868. 



Abramis crysoleucas Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus., 1896, 250. 



Mouth of the Rio Grande north to the Dakotas and Nova Scotia. 



Head 4%; depth 3; D. 8; A. 12 to 14; scales 10-46 to 55-3. Body 

 moderately elongate, strongly compressed; head short, sub-conic, 

 compressed, the profile somewhat concave; mouth small, oblique, 

 the upper lip on a level of upper part of pupil; the maxillary not 

 reaching vertical from anterior margin of the orbit. 



Color greenish above; sides silvery with golden reflections; fins 

 yellowish, the tips of the lower fins sometimes slightly orange in 

 spring males. Length about 12 inches. 



The most southern known locality of this species is the mouth 

 of the Rio Grande at Brownsville, Texas; from here it ranges north 

 to Dakota and Nova Scotia. It lives mostly in bayous and ponds 

 where there is much vegetation. 



24:. Cochlognathus Baird & Girard. 



Cochlognathus Baird & Girard, Proc. Acad. Nat. Sci. Phila., 1854, 

 158. (Type, Cochlognathus ornatus Baird & Girard.) 



Body elongate; head rather large; jaws each provided with a hard 

 cutting plate, the sharp, bony edge being surrounded by the usual 

 lip; teeth 4-4, with grinding surface, the tips slightly hooked; first 

 dorsal ray spine-like and separate from the next ray by a membrane ; 

 alimentary canal short; anal fin small. 



