of the Virginian. Coast. 



207 



half as far as the anal cirri, thus giving the appearance of 

 four anal cirri. Color, variable. 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 setse, 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 



