474 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



VI.— Gkni's APRION,Cut. A: Val. 



(Oiu- sj»ecies possibly a distinct generic group, Platijiiniis Gill.) 



S.'). Aprion macrophlliahniis, (Miiller & Troschel). (W.) (Pos.sibly idcntirnl with 

 Jprioii Jilainoitostis jioin the Isle de France.) 



VII.— Gkxus ETELIS.Cnv. & Val. 



2C>. I<:irU><(>rHhiin.%Cuy. &Vi\]. (W.) 



VIIL— Gf.xus VERILUS, Poey. 

 27. Vfrihis sordidttfi, Vocv. (W.) 



Indiana University, 



August 12, 1884. 



DESCRIPTION OF FOUR NEW SPECIES OF CYPRINIDiE IN THE 

 UNITED STATES NATIONAL MUSEUM. 



By DAVID ^. JORDAIV ami NETII E. ITIEEK. 



1. Cliola camuia, sp. nov. 



Head, 4i in length to base of caudal ; depth, 3^. D. 8; A. 0. Seale.'^j, 

 0_38-4. Teeth, 1, 4-4, 1. Length (12250, Arkansas Eiver at Fort 

 Lyon, Colorado), 4 inches. 



Subgenus Cijpnnella, Girard. 



Body oblong, compressed, rather robust; the back considerably ele- 

 vated, especially anteriorly. The anterior prolile rather steep and 

 slightly concave, there being a slight depression over anterior i^art of 

 eye. Snout bluntly decnrved at tip; its length 3^ in head; the height 

 of its vertical tip nearly equal to diameter of eye. Eye small, about 

 4^ in head; mouth small, somewhat oblicjue, the lower jaw included, 

 the maxillary reaching vertical from front of orbit; its length 3i in 

 head. Premaxillary in front on a line with lower margin of eye. 



Scales large, not very closely imbricated along sides of body. Breast 

 scaly; 16 scales in front of dorsal. Lateral line strongly decnrved. 



Teeth, 1, 4—4, 1, hooked, with narrow grinding surface; the edges 

 slightly crenate. 



Insertion of dorsal slightly behind that of ventrals, a little nearer 

 tip of snout than base of caudal. Dorsal fin higher than long; its base 

 1| in head; its longest rays 1| in head. Anal rather low and short: 

 ti[)S of ventrals reaching vent ; length of the fin 1 j| in head. Tips of pec- 

 torals not reaching more than f^ distance to origin of ventrals ; the length 

 of the tin l.i in head. 



Color, in alcohol, brownish above; sides and below silvery; tips of 

 anterior rays of caudal dusky. A large black blotch on posterior rays of 

 dorsal ; other fins plain. 



The two specimens (one 3, the other 4, inches in length) upon which 



