180 DR. BAIED ON THE APHBODITACEAN ANNELIDES. 



This species I do not know ; it is a native of the western and 

 northern coasts of Sweden. 



Sp. 2. LiETMATONICE KiNBEEGI, Sp. nOV. 



Body oval, from 12 to 15 lines long, and from 4 to 5 in breadth 

 at thickest part. Back covered with a felty coat composed of a 

 thin membrane and numerous fine hairs matted together, which 

 are generally obscured with sordes, but when cleaned from it are 

 smooth and simple, colourless, and not very numerous. Head- 

 lobe constricted in the middle by a deep groove on each side. 

 Tentacle short and conical. Palpi white, long, and setaceous. 

 Elytra 15 pairs, oval, thin, membranous-looking, and smooth, 

 overlapping each other the whole length of the back. Cirri rather 

 long and club-shaped at the extremity. Feet 30 pairs, biramous ; 

 branches widely apart. Dorsal branch rounded and rather short ; 

 the bristles issuing from it, about ten or twelve in number, long, 

 apparently furnished with a loose joint at about the upper third of 

 its length. They are of a bronzed brown colour, and barbed near 

 the extremity, which is straight and sharp pointed. The ventral 

 branch of the foot is long, conical, obtuse-pointed, and the bristles 

 issuing from it, about five or six in number, are of considerable 

 length, though much shorter than those of dorsal branch. They 

 are more slender also, are curved at the point, have a tooth at 

 some distance from the extremity, and between the teeth and 

 point are rather densely plumose or feathered. The edges of this 

 ventral branch, and indeed the whole surface, are beset with a 

 number of rounded vesicular bodies, placed on short pedicels. 

 The under surface of the body is greyish-coloured, and covered 

 all over with small vesicles, which give it a rough appearance. 



This species of Aphrodita resembles in general appearance the 

 Aplirodita horealis of Johnston ; but the fascicle of bristles of the 

 ventral branch of the foot and those of the dorsal also are totally 

 different from those figured by Dr. Johnston. In the latter 

 species also the elytra are quite different-. In the figure of A. 

 horealis given by Dr. Johnston they do not nearly meet on the 

 middle of the back, while in the present species they overlap each 

 other along the whole length of the dorsal surface. It differs 

 chiefly from L.filicornis of Kinberg in the length of the tenta- 

 cle, and the shape of the cephalic lobe. 



Hob. Dredged in considerable numbers in the North Sea, off 

 the Shetland Islands, by J. Gr. Jeffreys, Esq., in July 1864. 

 (Mus. Brit.) 



