Jordan and Evermann. Fishes of North America. 299 



conic, rather pointed. Mouth large, moderately oblique, the premaxil- 

 lary on level of pupil, the maxillary extending to opposite eye ; lower jaw 

 somewhat projecting. Eye moderate, about equal to muzzle. Scales 

 closely imbricated, crowded anteriorly, about 30 before dorsal. Dorsal fin 

 high, inserted about midway between ventrals and anal; pectorals not 

 reaching ventrals, the latter to vent ; caudal fin long. Coloration dark 

 steel blue above ; pale or silvery below ; a more or less evident black spot 

 at base of dorsal in front ; the fins otherwise all plain. Males with the 

 anterior dorsal region and the head profusely covered with small whitish 

 tubercles, the belly and lower fins being of a bright brick red in the 

 spring. Females very pale- olive, sometimes almost colorless. Length 3 

 inches. Minnesota to Western New York, (Cayuga Lake), North Carolina, 

 Alabama, and Kansas ; generally abundant in small, clear streams. An 

 ornate and excessively variable little fish, of which the following are 

 recognizable varieties. 



The typical, that is, earliest known form, but the most aberrant of 

 the series, occurs in Iowa and southwestward to the Arkansas Basin. 



498a. NOTROPIS UMBRATILIS UMBRATILIS (Girard). 



Head 4 ; depth 3& to 3| ; eye about 4. D. 8 ; A. 11 ; scales 40 to 44. Body 

 short, deep and compressed. Eye smaller than in other forms. Lateral 

 line deflexed. Male steel blue, smutty above, a dark curved bar on scapu- 

 lar region ; dorsal black except at base mesially, the dark spot in front 

 obscure ; lower fins all dusky, flushed with red ; females very pale oliva- 

 ceous, the black scapular bar usually plain, the dark spot represented by 

 dark punctulations. Length 3 inches. Arkansas River and streams of 

 Kansas and southwestern Iowa, (umbra, shade.) 



Alburnm umbratilis, GIRARD, Proc. Ac. Nat. Sci. Phila., 1856, 193, Sugar Loaf Creek, tributary 



Poteau River, Arkansas. (Type, No. 73. Coll. Mollhausen.) 

 Luxilus lucidus, GIRARD, Proc. Ac. Nat. Sci. 1856, 203, Coal Creek, tributary South Fork 



Canadian River. (Coll. Mollhausen.) 

 Minnilns nigripinnis, GILBERT, Bull. Washb. Lab. Nat. Hist., 1, 1884, 14, Shunganunga Creek, 



near Topeka, Kansas. (Type, No. 36613. Coll. Cragin.) 



fNotropis macrolepidotus, * FORBES, Bull. 111. Lab. Nat. Hist., 1885, 138, Illinois. (Coll. Forbes.) 

 Alburnellus umbratilis, GIRARD, Pac. K. R. Surv., x, 260, 1858. 

 Minnilus umbraiilis, JORDAN & GILBERT, Synopsis, 200, 1883. 

 Notemigonus lucidus, JORDAN & GILBERT, Synopsis, 249, 1883. 



* The following is Prof. 

 a single specimen in o 

 it differs especially in 



base of the dorsal" fin. It is elliptical in outline, strongly compressed, its greatest thickness being 

 less than half its depth, the back making a uniform curve from the front of the dorsal to the 

 nostrils. Length 2.1 inches, depth 4.2 in length, caudal peduncle 4.6. Color in alcohol plain, 

 the sides somewhat silvery, the opercles brightly so; no dark vertebral line, but the scales upon 

 the back and upon the upper part of the sides thickly sprinkled with rather large circular black 

 specks ; fins all plain ; upper surface of the head a little dusky, and thickly sprinkled with black. 

 The head is a compressed cone, 4.5 in length, upper surface convex ; snout regularly declined, 

 3.5 in head; mouth rather large, terminal, oblique ; upper lip opposite the middle of the pupil; 

 maxillary to posterior margin of nostril; upper jaw 3.15 in head, lower not projecting, 2.6 in 

 head ; teeth 4, 2-2, 4 ; eye large, circular, 3.75 in head ; dorsal fin 1-8, about 4 scales behind the 

 ventrals ; anal 11 ; scale formula 6-40-3, 19 before dorsal. 



