SILVER TROUT. 
67 
caudal a little more than two fifths greater than the least depth of the caudal peduncle ; length 
of pectoral about 1.65 in head, the distance of its base from tip of snout equaling length of 
head; distance from base of pectoral to base of ventral slightly over 3 in length of body without 
caudal; the ventral length about 2 in head; distance from base of ventral to base of caudal 
about 1.24 in distance from tip of snout to base of ventral; anal rays II, 8, the longest about 1.9 
in head. 
Coloration — Dark grajdsh green on upper part of back, becoming lighter and yellowish 
toward the lateral line; below decidedly yellow, paling into pearl gray, and suffused with light 
Saturn-red, deepening toward the abdomen, where from the ventral fins forward the color 
stops abruptly against the clear white of the abdomen and throat; light red appearing more 
or less along the lower edge of the body behind the ventrals, excepting on a sharply defined clear 
white patch in front of and at the base of the anal fin. Dull orange-yellow spots scattered over 
middle of body and five ocelli of pale lilac with crimson centers. 
Head, color of body on top, fading to the lighter greens and numerous metallic colors of 
rose, pearl, yellow, purple and reddish; lower jaw whitish, mottled with dusky, the tip slightly 
tinged with flesh color or dull orange. Iris, straw yellow; dorsal, dull yellow, crossed by several 
irregular dusky bars, the dark color mainly between the rays; a small dusky spot on body at 
the base of each ray; adipose dull purplish, somewhat lighter on upper edge, with a narrow sub- 
marginal dusky line; pectoral, ventral, and anal fins pale purplish pink, deepening basally, 
anterior edges white with black line behind, the pectorals growing somewhat dusky basally; 
caudal, dull purplish pink becoming somewhat orange centrally and dusky basally, with pur- 
plish black band at tip and several incomplete and somewhat indistinct dusky bars across it; 
the upper edge dull orange yellow, the lower white and both with irregular narrow line of dusky 
behind the light color. 
Description from a specimen 16.5 inches long taken on the night of October 29, 1912. 
Female — Read 4.47 in length without caudal; eye, 4 in head; snout, 4; upper jaw, 1.80; 
lower jaw, 1.50; branchiostegals, 11/11; gill-rakers, III-4-I-9 and 11-54-8 (three rudiments, 
a space and 4 developed and 9 fully developed, and 2 rudiments, a space and 5 fully developed 
and 8 fully developed). Body slender, the greatest depth 5.19 in length without caudal; caudal 
peduncle slender, 1.53 in the distance from anal to base of caudal; dorsal origin nearer tip of 
snout than base of caudal; dorsal rays, i, 10; the longest ray longer than base of fin and 1.56 
in head; distance from adipose to base of caudal about one fourth greater than least depth of 
caudal peduncle; length of pectoral about 1.63 in head, the distance of its base from tip 
of snout equaling head; distance from base of pectoral to ventral slightly over 3 in length of 
body without caudal; the ventral length about 1.89 in length of head; distance from base of 
ventral to base of caudal 1.23 in distance from tip of snout to base of ventral; anal rays, i, 8, 
the longest about 1.63 in head. 
