of tlie Virginian Coast. , 7 
half as far as the anal cirri, thus giving the appearance of 
four anal cirri. Color, variahle. The head may be clear 
white, or with dark brown specks. The antennae and all 
superior cirri are white, with a black or dark brown band 
on the enlarged portion. The palpi are usually dark 
brown at base, becoming lighter externally, with white 
tips; or they may be white throughout. The general color 
of the body above is some shade of brown, but the elytra 
vary much in their markings. Often there is a large 
whitish spot, with numerous minute brown spots, or the 
white spot may disappear. The brown sometimes becomes 
nearly black, in a few specimens the black occurs in large 
blotches ; or the space usually occupied by the white spot 
may be black. The body beneath the elytra is yellowish 
white. The anal segment is brown or black, and the two 
or three segments preceding the anal have transverse 
markings of the same color as the anal segment. Ventral 
surface more nearly uniform in its markings than the 
dorsal. General color, yellowish-white. Margins of each 
segment with an irregularly shaped brown spot. A central, 
white or yellowish -white, line, on each side of which on 
each segment is a brown spot. The anal cirri are usually 
dark colored throughout, and the external enlargement 
is hardly perceptible. 
On pi. II, f 14, a head is figured which will be seen 
to differ much from f. 6; but it is only in the head that 
the two forms differ. In setie, shape of feet, form and 
character of elytra, etc., they agree perfectly. At least half 
of the specimens corresponding to fig 14 were females. 
I could not determine the sex of the others. Possibly 
this may be a sexual form, though I have been unable to 
find any notice of sexual variations in this group of annel- 
ids. It will be seen that the anterior margin of the first 
segment is prolonged on each side of the middle line into 
