FAMILY SALMONIDAS — BAIONE. 245 
The lateral line curves down from the upper angle of the branchial aperture ; it is com- 
posed of a series of very minute rounded tubercles, continuous with the mucous pores on the 
head. Length of the head measured to the posterior margin of the opercle, to the total length, 
as one to five. The orbits large, encircled by a row of mucous pores ; at the posterior part 
of the orbits, a series of these pores goes off on each side posteriorly, and becomes continuous 
with the lateral line ; another transverse line connects these two over the basal line of the 
head. ‘These series of mucous pores are scarcely evident in the living specimens. Eyes 
very large in proportion to the size of the body, 0°15 in diameter, and 0°1 apart. Mouth 
broad, rounded, and deeply cleft. A row of crowded minute even teeth on the maxillaries ; 
a shorter range on the intermaxillaries, and a patch of similar minute teeth on the vomer. 
A series of long upright teeth on the edges of the tongue. The branchial rays ten and 
eleven on opposite sides. 
The first dorsal arises at a point nearly midway between the end of the snout and the adipose 
dorsal ; it contains eight slender branched rays, so far cloven down as to render them difficult to 
enumerate. It is higher than long, being 0°2 in length along the base, and 0°28 high. The 
adipose fin slender but distinct, 0°1 high, and nearer the end of the first dorsal than the tip 
of the caudal rays. Pectorals placed low down, with twelve rays, of which the second, third 
and fourth rays are longest; this fin is 0°3 long, its tips scarcely reaching the base of the 
ventrals. The ventrals feeble, contiguous, pointed, and placed beneath the first dorsal, with 
one simple and six branched rays. ‘The vent is a longitudinal fissure with a tubercular mar- 
gin, and covered by the ventrals when they are in repose. Anal quadrate, with nine rays, 
arising half an inch from the base of the caudal; it is 0°25 high, which is twice the length of 
its base. Caudal fin forked ;, its lobes rounded, and with numerous accessory rays. 
Color. The general color is black above; silvery white on the sides and beneath. The 
dark color above, descends in a waving manner on the sides, occasionally becoming detached 
rounded spots. Along the sides are eight large vertical broad bands, sometimes irregular, 
occasionally oblong elliptical, not uniting with the dark color above ; these bands become cir- 
cular spots on the sides of the tail. First and second dorsal dusky, faintly maculated with 
brown. All the other fins tinged with orange on their outer margins. 
Length, 2°0. Depth, 0°25. 
Pintrays;, D-.8 70's Peles Mev 3 AL Os. 19k e, 
This pretty little fish inhabits clear running streams and springy morasses. It was first 
detected in a deep spring in Rockland county, by Mr. J. G. Bell, and will doubtless be 
found in other parts of the State. I have heard it called Pigmy Trout and Trout Pig. It is 
undoubtedly the smallest fresh-water species of the Salmonide. 
