442 Mr. W. Thompson’s Notes on British Char. 
up and hooked ; the head in this sex is very much larger in 
every part than in the female, and the size of the fins is much 
greater. 
The males, though differing in intensity of colour, may be 
described as lilac-black or dusky, relieved by a lilac tinge on 
the uppermost third of the body, viewed lengthwise, from the 
dorsal ridge, becoming however gradually paler from this 
part; the middle of the sides is lilac-gray, beautifully and 
somewhat closely marked with round scarlet spots about a 
line in diameter; the lowest portion of the sides is of a sal- 
mon-coloured scarlet without spots. The head and the dorsal 
fin are dusky, with a lilac tinge; the pectorals dusky above, 
tinged with scarlet beneath where they rest upon the part of 
the body which is of this colour; the ventrals are bright 
scarlet, with occasionally a dusky longitudinal band inside 
the margin, which is white; the anal fin dusky, tinged with 
scarlet—in all; the ventrals and the anal fin have a white 
margin, and some have the lower lobe of the caudal fin like- 
wise of this colour: two or three individuals have a tinge 
of red on the caudal fin. Donovan’s description of the co- 
lour of S. Salvelinus agrees admirably with the present spe- 
cimens. 
The females in colour somewhat resemble Donovan’s S. al- 
pinus: the uppermost third of the body, viewed lengthwise, 
from the dorsal ridge, is dusky, relieved by lilac, becoming 
gradually paler downwards, so that the middle of the sides 
presents a dull lilac—this part is adorned with numerous round 
spots of similar size to those in the male, but less bright in 
colour ; some however are scarlet, but they are chiefly either 
pink, or of a dull chalky pinkish hue, as represented in Do- 
novan’s S. alpinus; the lowest portion of the sides is of a 
silvery lilac, without spots. The fins are all dusky, with a 
tinge of lilac ; the margin of the ventrals, of the anal, and oc- 
casionally of the caudal fin, is white, as in the males—there is 
no regular spotting on the dorsal fins, as represented in Do- 
novan’s figures of his two species. The dorsal fins of the 
males are nearly all blackish, occasionally towards the tip 
transparent, which those of the females generally are, and in 
one or two individuals of the latter sex an approximation to 
spots may be faintly traced. One only of the males and a 
few of the females exhibit transverse markings along the sides 
like the “ Par,” but not so conspicuously. On dissection, the 
milt (of the ordinary white colour) and roe (of an amber* hue) 
* This is the general colour; some are of a very pale yellow; the ova of 
both colours are of similar size. 
