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 crysolcucas 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 crysolcucas Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus., 1896, 250. 



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



Head 4,K ; 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 1 2 inches. 



The most southern known locality of this 1 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. 



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

 158. (Type, Cochloguathus 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. 



