IcfdG. J PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. b 



to beyond the front of tlie eye, its length 3| in head. Lower jaw in- 

 cluded, little shorter than upper. Eye small, smaller than in M. delicio- 

 susj 4 in head ; its length scarcely greater than interorbital width. 



Scales rather smaller than in JV. deliciosus ; those in front of dorsal 

 somewhat reduced, about 17 in number. Lateral line somewhat de- 

 curved. Breast naked, or nearly so. 



Dorsal fin rather high, its longest rays 1^ in head, its insertion slightly 

 behind base of ventrals, near middle of length of body. Caudal pedun- 

 cle slightly longer than head. Pectoral moderate, not reaching ventrals. 



Head 4 in length; depth, 5. D. 8; A. 9. Scales, 5-34 to 36-4. 

 Teeth, 1, 4-4, 1. Length, about 2^ inches. 



13. Wotropis ■whipplei, Girard. 



{CiiprincUa u-hippJei, Ginird, Proa. Ac. Nat. S«i. Phila., 1856, 11)8. 

 CuprineUa anulontana, Girard, Proc. Ac. Nut. Sci. Phila., 1859, 38.) 



Exceedingly common in the river channels. The lower fins in the 

 males are of a bright creamy yellow. 



On comparison of specimens of N. analostanus from various regions 

 with specimens of N. tnhipplei, among them Girard's original types, we 

 are unable to detect any differences, except that in the Arkansas exam- 

 ples {wMjjplei) the body is rather more elongate. 



14. Notropis megalops, Rafinesque. 



{< Uprhins mer/alops, Rafincsciue. Anicr. Monthly Mag., 1817, l2Q=Cyprinus 

 cortmtm, Mitcliill, Amer. Monthly Mag., 1818, 324.) 



A' single specimen taken in Village Creek. 



It seems necessary to adopt Kafincsque's name for this species, as it 

 is earlier than that given by Mitchill. His description applies very well 

 to N. cornutuSj and in his manuscript note-books we find his original 

 drawings and notes, which render the identification almost certain. 



15. Notropis boops, Gilbert. (?) 



Two small specimens were obtained, which we are unable certainly to 

 identify at present. 



Color, pale green, silvery below; fins, pale; no distinct markings. 

 Eye large; mouth short, oblique, the lower jaw projecting. Scales, 

 about 40. A, 8; teeth, 2, 4-4, 1. They belong, perhaps, to Notropis 

 boops. 



16. Notropis rubrifrons, Cope. 



{Alburnus rubrifrons, Cope, Proc. Acad. Nat. Sci. Phila., 1865,85. 

 Alburnellus percohromus, Cope, Hayden's Geol. Surv. Wyo., 1870,440.) 



Kather scarce, in the river channel. 



These specimens and others obtained farther west appear to repre- 

 sent Cope's percohromuH. We cannot, however, separate it from N. 

 rubrifrons. 



Color, light green in life, silvery below, with reddish lateral and ver- 

 tebral streaks ; head, reddish above ; fins, pale ; the base of dorsal red- 



