Jordan and Evermann. — Fishes of North America. 283 



Plargyrtis typicm, Girard, Proc. Ac. Nat. Sci. Phila., 1850, 19G, after Rafinesque. 

 Plargyrusbowmani, Girard, I. c, 19G, Sweetwater River, Nebraska. (Coll. Bowman.) 

 Plargyrus argenlalus, Giu.4.nD, I. c, 212, James River, Virginia. (Coll. Baird.) 

 Alburnops 2>l ""'Aeolus, Cope, Proc. Ac. Nat. .Sci. Pliila., 18CI, 282, Saginaw River. Flint, 



Michigan. 

 Hypsilepis cornithts. Cope, Proc. Ac. Nat. Sci. Phila., 1867, 158. 

 Leuciscm cnrnnlvs, Gi'NTilER, Cat., vii, 249, 1868. 

 Minnihin comutns, Jordan & Gilbert, Synopsis, 186, 1883. 

 Minuilus pimiiheolus, JounAN & Gilbert, Sj-nopsis, 192, 1883. 



Represented northwards by the scarcely tangible 



456a. XOTROPIS (ORXITIS FUOXTAIJS (Agassiz). 



Thirteen to 18 scales before dorsal ; head very heavy. Great Lakes; 

 everywhere common in months of brooks, (frontalis, pertaining to the 

 forehead.) 



Leiiciscus frontalis and i/r<tciU.% Agassiz, Lake Superior, 368, 370, 1850, Lake Superior. 

 Hypsilepis cornulKs gihhu.i, CoPE, Proc. Ac. Nat. Sci. Phila., 1867, 158, Monroe County, Mich- 

 igan. 



In Northern Michigan occurs 



456b. NOTROPIS CORXUTUS CTANEUS (Cope). 



Scales of the dorsal and ventral regions very small, 31 to 40 in front of 

 dorsal fin . Scales 10-40—1. Coloration extremely dark ; blue-black above ; 

 fins chiefly black. Northern Peninsula of Michigan ; not known to us. 

 (nvavior, blue.) 



Hypsilepis coniuius cyaneiis, Cope, Proc. Ac. Nat. Sci. Phila., 1867. 160, Montreal River. 

 Keweenaw, Michigan. (Coll. Dr. John H. Slack.) 



In the Roanoke River are two strikingly different forms which should 

 perhaps rank as distinct species. 



457. XOTROPIS CERASIXUS (Cope). 



Fifteen scales before dorsal ; scales 6-37-3. Eye 3i in head ; snout short 

 and blunt ; dorsal and anal high, their edges concave. Head 4 in length; 

 depth 3?. Colors very brilliant. Steel-blue, the sides always marked 

 with irregular blackish cross blotches and bars formed by a broad dark 

 edging on some scales. Males flushed with pink, the fins all deep red. 

 Length never more than 4 inches. Roanoke River, in mountain brooks. 

 (cerasinus, cherry-red.) 



Hypsilepis cormittts rerusinus, Cope, Proc. Ac. Nat. Sci. Phila., 1867, 159, Head waters of Roanoke 

 River, Virginia. (Coll. Cope.) 



458. NOTROPIS ALBEOLl'S (Jordan). 



Snout sharper than in the ordinary cornutus, the caudal peduncle and 

 fin especially longer. Dorsal and anal high, their free edges concave. 

 Eye 3+ in head ; depth 4. Lateral line 38, 14 scales before dorsal. Pale, 

 olivaceous above, sides and fins silvery white, the tip of the snout sil- 

 very in the male. Length 5 to 7 inches. Jioanoke, Tar, and Neuse rivers, 



