218 Bulletin 4j^ United States Natiotial Afuseiim. 



across base of caudal ; pectoral fins white, except the black outer edge, 

 Avhich is followed by a narrow, sharply-defined streak of bright silvery; 

 other fins white, the middle portions black ; head all black. Lateral line 

 complete, {confertus, compact.) 



Ilyborhiitirlins cmfi-rliis, ainxnr), Proc. Ac. Nat. Sci. Phila., 185G, 179, (9), Hurrah Creek, a 

 tributary of Pecos River, Texas. (Coll. Miillhausen.) Jordan & Gilbert, in part, 



Synopsis, 15'J, 1883. 



350. PIMEPKALES NOTATUS* (Rafinesque). 



(Blunt-Nosed Minnow.) 



Head 41 ; depth 5; D. I, 8 ; A. 7 ; scales 6-45-4 ; teeth 4-4. Body rather 

 elongate, not elevated, moderately compressed. Head moderate ; the muz- 

 zle blunt and convex ; top of the head depressed. Cheeks vertical. Mouth 

 small, inferior, horizontal. Fins small; the dorsal moderate, the first ray 

 distinct and spine-like in the male, slender in the female; anal small, 

 caudal fin short. Scales moderate, deep, closely imbricated; scales in 

 front of dorsal small and crowded, in 23 rows. Eye moderate. Color oli- 

 vaceous, little silvery ; sides bluish ; a black spot on the dorsal fin in front, 

 near the base, less distinct than in Cliola vigilax; a dusky shade at base 

 of caudal ; fins often reddish; males in spring with the black on the dorsal 

 more extended and the head wholly black ; snout with about 14 dispro- 

 portionately large tubercles. Length 4 inches. Quebec to Delaware, 

 Kentucky, Alabama, Arkansas, and northward to the Dakotas ; generally 

 very abundant in small streams west of the Alleghanies. (notatus, noted 

 or spotted.) 



Minnihis notatus, Kafinesque, Ichtli. Oh., 47, 1820, Ohio River. 



Catoslomus melmiotm, Rafinesque, Ichtli. Oh., bS, 1S20, Ohio River. 



Hilborhiinchiiii 2>erspicmts, Girard, Proc. Ac. Nat. Sci. Phila., 1850, 185, Arkansas River, Fort 

 Smith. (Type, No. 144. Coll. Shumanl.) 



Uyhorhynchns tenelhm, GlRARU, J. c, 179, Choctaw Agency. (Coll. MoUhausen.) 



Hyborhynchus pnnKevit, Girard, /. c, 179, Antelope Creek, Canadian River. (Coll. 

 Ki'nuerly.) 



Hyhiipxis liuiitnlurus. Cope, Cypr. Penn., 382, 186G, St. Joseph River, Michigan ; Michigan 

 City, Indiana. 



Hyborhijnchtus mjKrciUoinis, CoPE, Journ. Ac. Nat. Sci. Pbila., 1SC8, 234 ; Kanawha River. (Breed- 

 ing males with the lips thickened). (Type, No. 20532. Coll. Cope.) Jordan & Gilbert, 

 Synopsis, 160, 1883. 



Eyborhynchiis notatus, GiJNTHER, Cat., VII, 182, 1868; Jordan & Gilbert, Synopsis, 159, 1883. 



Hyboguathiis j)ersj)icim.s, GuNTHER, Cat., vii, 185, 18C8. 



Leucismis hxmatunis, GuNTllER, Cat., vn, 259, 1868. 



Cliola luematura, Jordan & Gilbert, Synopsis, 166, 1883. 



log. MYLOPHARODON, Ayres. 



Mylopharodnti, Ayres, Proc. Cal. Ac. Nat. Sci., 1855, 33, {robmluit). 



Body elongate; head large, pike-like, the upper jaw not protractile; 

 no barbel. Teeth 2,4-5,2; 2 or 3 of the teeth in the main row molar, 



*Tho following nominal species is probably the young of rimephales nolalus: Hybopsis hxma- 

 (iinis, Cope. Head 4 ; depth 4|; eye 3^^. P. 8 ; A. 7; 6cales7-44-4; teeth 4-4, littlehooked. Head 

 moderate, the muzzle little obtiise. Month inndcnitc, toruiinal, oblique, the maxillary reaching 

 iirtiit ; temporal region rounded. Scales rather i^niall, 21 rows in front of dorsal. Lateral line 

 slightly decurved. Plumbeous above; head blackish; a faint dusky lateral band, ending ina 

 dusky spot at root of caudal tin ; caudal fin dull red ; fins ntherwise plain. Length 3 inches. 

 Streamsabout the head of Lake Michigan. Said to be abundant. (Cope.) (cii/ua, bluud ; ovpa, tail.) 



