176 DB. BAIKD ON THE APHKODITACEAN ANNELIDES. 



Sp. 2. Aphrodita sericea. 



Halithea sericea, Savigny, Syst. Annelid, p. 19. 



This is looked upon as a rather doubtful species by Audouin and 

 MUne-Edwards, and G-rube considers it as in all probability only a 

 smaller yariety of A. aculeata. The splendidly iridescent hairs, 

 however, are wanting in this species, instead of which these ap- 

 pendages are white, while the spines on the dorsal branch of the 

 feet are of a fine green. Savigny gives no habitat for this species, 

 and no author has recorded its appearance since his time. A 

 specimen, however, exists in the Paris Museum. 



Sp. 3. Aphrodita borealis, Johnston in Ann. Nat. Hist. vol. iv. 



p. 370, 1. 10. fig. 1-13, and Catalogue of British Non-parasitical 



Worms in the British Museum, p. 104, tab. 10. f. 1-13. 



This is a very small species, and we have only one specimen 

 existing in the collection of the British Museum. It certainly 

 belongs to the restricted genus Aphrodita, and has been con- 

 sidered by G-rube to be synonymous vrith Eisso's Halithea aurata 

 from the South of Europe. Risso's description, however, is so 

 vague and unsatisfactory, that I find it impossible to identify it 

 with any species I have yet seen. 



The A. horealis is a native of the seas of Scotland, having been 

 taken by Dr. Johnston in Berwick Bay. (Mus. Brit.) 



Sp. 4. Aphrodita abta, Kinlerg, Ofversigt af Kongl. Vetens- 



Tcaps-Akademiens Forhandlingar, 1855, p. 381 ; Fregatten 



Hugenies Besa, p. 2, tab. 1. fig. 1, 1 A-1 H. 



Kinberg states the size of this species to be 27 millim. long ; 

 and he mentions that the hairs of the ventral branch of the feet 

 are short and white. 



It was taken in the South Atlantic, near Eio Janeiro, at a 

 depth of from 20 to 30 fathoms. 



Sp. 5. Aphrodita lon&icornis, Kinlerg, I. c. p. 382 ; Fregatt. 



JEugen. Besa, p. 4, tab. 1. fig. 3, 3b-3 f. 



This species differs from the last in having the hairs on the ven- 

 tral branch of the feet of a brassy-green hue, and in the tentacle 

 on the cephalic lobe being very long. Kinberg mentions the size 

 to be that of the A. aculeata, and says it was taken in the South 

 Atlantic Ocean, ofi" the mouth of the Siver Plate. 



Sp. 6. Aphrodita australis, sp. nov. 



Body ovate oblong, 3| to 4 inches long, and from If to 2 inches 

 broad, narrower posteriorly, convex on the back, which is covered 

 with a thick felty substance, consisting of a thinnish membrane 

 and numerous fine hairs matted together, concealing the elytra ; 



