CYPEIKID^E. CVIII. 289 



4. P. leuciodus, Cope. WHITE SHINER. Olive, sides 

 silvery with purple reflections; snout and base of dorsal 

 red; lat. 1. 40. Holston R. 



*** Anal I, 8 ; no caudal spot. 



5. P. scabriceps, Cope. ROUGH -HEADED SHINER. 

 Head broad, minutely rough ; eye large, 3 in head; head 

 flattish above; mouth little oblique; greenish, sides 

 leaden silvery; D. I, 8; A. I, 8; lat. 1. 38. Ohio Valley. 



6. .P. spilopterus, Cope. SPOTTED - FINNED SHINER. 

 Head narrower; eye smaller; olive, a plumbeous lateral 

 band; black spot on dorsal behind; D. I, 8; A. I, 8; 

 lat. 1. 38. St. Joseph's R., Mich. This and some of the 

 ot^er species of this genus need confirmation. 



20. MINNILUS, Rafinesque. ROSY -FACED MINNOWS. 



= AlburnelluS) Girard. 



1. M. rubrifrons, (Cope) Jordan. ROSY -FACED MIN- 

 NOW. Olive above, with a clear green lustre ; sides sil- 

 very; a dark vertebral line; forehead, opercular region, 

 base of dorsal, etc.,- flushed with red in spring; upper 

 surface of head minutely tuberculate in males at that 

 season; head rather pointed, about 3^ in length; depth 

 4; eye about 4 in head; D. I, 8; A. I, 10; lat. 1. 38; 

 L. 3 or less. Ohio Valley, abundant ; an elegant little 

 fish, well distinguished from M. rubellus by the smaller 

 size, deeper body and much longer head, as well as by 

 peculiarities of form. 



Var. amcenus, (Abbott) Jordan. ABBOTT'S ROSY MIN- 

 NOW. Eye larger; head rather shorter. Delaware R. 



2. M. dilectus, (Grd.) Jordan. DELECTABLE MINNOW. 

 Intermediate between the preceding and the next; 

 smaller than rubellus and more thick-set; head = depth, 



13 



