ERKANTIATE POLYCHAETA OF JAPAN. 201 



Genus Eteone Savigny. 



Body linear, consisting of numerous segments. Prostomium 

 provided with 4 tentacles, witli or without eyes. Peristomium 

 simple. Tentacular cirri in 2 pairs. Parapodium uniramous ; 

 cirrus more or less foliaceous ; bristles compound. 



Eteone ovtiata Grube. 



1877. Eteone oiiiata, Grulje. 55. Jaliresbericlit d. Scliles. Gesell, f. 

 Vaterland. Cultur, p. lOG. 



Gkube's type is the only specimen as yet obtained of this 

 species. The following I take from his description : 



Body elongated, with 3 striking longitudinal rows of violet 

 pigment-spots upon a pale-yellowish ground colour. Toward the 

 middle parts of body the pigment- spots become gradually smaller 

 and l)lend into a single streak, while in the posterior region of 

 1)ody they entirely disappear. Dorsal cirrus comparatively small 

 and borne on distinct stalk as in E. armata Clap. (1868) and 

 h\ slpliodonta D. Ch. (1850). Prostomium roundish-triangular, 

 somewhat broader than long, and longer than peristomium. Eyes 

 two, small and dot-like. 



Habitat : — " Nortli Japan Sea " (Grube). 



Genus Biimida Malmgren. 



Prostomium furnished with Ave tentacles, the inedian tentacle 

 on dorsal surface; four pairs of tentacular cirri. First segment 

 soldered to prostomium, and l)earing tlie first pair of tentacular 

 cirri. 



