504 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
than anal, but with longer base. Coloration extremely brilliant ; dark 
olivaceous above, tessellated with dark 5 sides with about 7 broad trans- 
verse bars extending from below the lateral line on one side across the 
back and down the other side ; these bars are wider than the eye and 
are connected along the lateral line by a faint black stripe. In the female 
these bars are black and the intervening spaces yellowish. In the male 
the bars are of a dark rich blue-green with metallic lustre; the con- 
necting longitudinal line greenish-bronze ; just above this line is a 
luminous yellowish streak, and above in each of the interspaces between 
the bars is a bright blotch of bronze-red ; entire lower parts of the body 
of a bright clear yellow, which becomes on the under side of the head, 
throat, and brauchiostegals a bright orange-red ; blackish green streaks 
downward and forward from eye ; cheeks orange-red, the color of iron 
rust ; dorsal fin orange-colored, with a bright bronze edge, a blackish 
spot on the last rays; second dorsal and caudal pale orange; two bright 
yellowish spots at base of caudal ; anal bronze, with a blue-black shad- 
ing ; ventral fins dark blue-black ; pectorals faintly .orange. Males with 
the rays of the ventral and anal fins covered with small corneous tuber- 
cles, exactly as in some Cyprinidw. Female and alcoholic specimens 
show little of the bright colors, although the same pattern is preserved. 
The spinous dorsal has a dusky spot on its posterior rays, and the fins 
are destitute of the dark bars found in the other species of Alvordius. 
Head 4^ ; depth D. XI-10; A. II, 8 ; scales 9-G3-9. L. 2-3 inches. 
White Fiver, Indiana; locally abundant; one of the most brilliant of 
fishes. 
{Alvordius erifZes Jordan &. Copeland, Proc. Acad. Nat. Sci. PLila. 1877, 51: Ericosma 
evides Jordan, Bull. U. S. Nat. Mns. x, 8, 1877.) 
'78§. A. fasciatus (Grd.) Jor. 
“ It has the same blenuioid aspect as its congener [Alvordius aspro) ; 
the total length of the specimens observed measuring about two inches 
and a quarter, the head entering in it four times and a half. The eye is 
of medium size, subcircular; the diameter being contained 4 times in 
the side of the head. The first dorsal is lower and longer than the 
second, to, which it is contiguous. The anal is well developed, rather 
deeper than the second dorsal but shorter upon its base. The caudal 
fin is subtruncated. The ventrals and the pectorals are of moderate 
development, their tips being nearly even. The rays are D. X, 12 ; A. 
I, 8 ; the scales are small, deeper than long, posteriorly rounded oft’ and 
minutely pectinated, whilst their anterior margin is truncated, exhibit- 
ing numerous radiating ridges upon the latter section only. Their im- 
