300 Bulletin 47, United States National Museum. 



Further eastward in Illinois and Iowa in prairie brooks occurs 

 498b. NOTROPIS UMBRATILIS ATRIPES (Jordan). ^ 



Head 4i; depth 4; eye 4. D. 7; A. 11: scales 9-52-5. Body very 

 strongly compressed. Head comparatively pointed; eye small, shorter 

 than muzzle. Coloration of body dark bluish, without traces of vertical 

 bars; sides not silvery, the scales dusted with dark punctulations: 

 dorsal with the usual black spot at base in front, smaller than in lythru- 

 rus or ardens ; a black bar crosses its upper part ; anal colored like the 

 dorsal, with a black spot at base in front, the markings paler; ventral 

 fins dusky ; males profusely tuberculate, and doubtless red in spring. 

 Length 3 inches. Southern Illinois and Iowa, (ater, black; pes, foot.) 



Lythrurus atripes, JORDAN, Bull. 111. Lab. Nat. Hist., n, 59, 1878, streams of Union and 



Johnson counties, Illinois. (Type, No. 26295. Coll. Forbes.) 

 Minnilus atripes, JORDAN & GILBERT, Synopsis, 197, 1883. 



Represented throughout the Ohio Valley and neighboring regions by 

 498c. NOTROPIS UMBRATILIS LYTHRURUS (Jordan). 



The central type from which the others seem to have diverged. Body 

 moderately elongate, the depth 4 in length, the females nearly 5 ; eye 

 large, about 3 in head. Scales 9-47-3. Dorsal with a conspicuous 

 black spot in front, the rest of the fin mostly pale; no anal spot. Length 

 3 inches. Ohio Valley and rivers of neighboring states. (MOpov, blood ; 

 ovpd, tail.) 

 Butilus ruber*, RAFINESQTJE, Ich. Oh., 52, 1820, Elkhorn and Kentucky rivers; named but not 



described. 

 Notropis lythrurus, JORDAN, Proc. U. S. Nat. Mus., 1884, 476, White River, Indianapolis, 



Indiana. (Type, No. 20115. Coll. Jordan & Copeland.) 

 Hypsilepw dipltemia, COPE, Proc. Ac. Nat. Sci. Phila., 18G7, 162. 

 Minnilus dipliemius, JORDAN & GILBERT, Synopsis, 197, 1883; not Semotilus diplsemius, Rafinesque. 



Represented northward by the deep-bodied 



498d. NOTROPIS UMBRATILIS CTANOCEPHALUS (Copeland). 



Head 4i ; depth 4 ; eye 31. D. 8 ; A. 12 ; scales 9-46-4 ; teeth 2, 4-4, 2. 

 Body short, stout, chubby, moderately compressed, the form resembling 

 that of Pimephales. Head very short, deep, us greatest depth three- 

 fourths its length. Snout blunt, shorter than eye. Eye large, not so 

 wide as the interorbital space. Coloration dark bluish above ; sides not 

 silvery; males in spring profusely covered with small tubercles; the 

 sides and fins clear, bright red ; the back, and especially the top of the 

 head, of a clear glaucous blue ; dorsal in both sexes with a large black 

 spot at the base of its anterior rays, this spot about as large as eye; 

 dorsal, anal, and ventrals blackish at tip. Length 2^ inches. Rivers of 

 southern Wisconsin, etc. (nvdyeoc;, blue; Koa'A?j, head.) 



Lylhrurus cyanocephalus, COPELAND, Proc. Ac. Nat. Sci. Phila., 1877, 70, Racine River, 



Wisconsin. (Type, No. 17857. Coll. Hoy & Copeland.) 

 Minnilus cyanocephalus, JORDAN & GILBERT, Synopsis, 196, 1883. 



* "51st species, Red Minny, Butilusl niber, Rutile rouge. Entirely red; tail forked. I add 

 here a fine small fish, which I have never seen as yet, but it is said to live in the small 

 Btreamo which fall into the Elkhorn and Kentucky. It is a slender fish, only 2 inches long, 

 compressed, and of a fine purple red. It may belong to this genus, or to any other of this 

 tribe. It is commonly called Ked Minny." Rafinesque. 



