194 AKT. II. — A. IZÜKA : 



The longest dorsal cirrus is that of 11th segment, being 

 about three times as long as the length of the segment itself. 

 Preanal segment with only dorsal and ventral cirri, lacking 

 parapodia. 



Anal cirri long, reaching to anterior margin of 15th segment, 

 when stretched forwards along dorsum. 



Proboscis cylindrical, its length about equal to that of the 

 two anteriormost setigerous segments. It consists of two regions 

 of nearly equal length, the anterior being white and the posterior 

 slightly tinged with brownish hue ; a small papilla-like process 

 found on the dorsal median line of the latter region. 



Habitat : — Shores of Misaki and its vicinities (!) ; Yokohama 

 (Mr. U. Takakuea) ; Yenoura in Prov. Suruga (!) ; Agu in Prov. 

 Shima (!) ; Kushimoto in Prov. Kii (Mr. K. Yendo) ; Sagami Bay, 

 about 310 fathoms ; Yenoshima (Maeenzellee). 



Family Phyllodocidae. 



Prostomium bluntly conical, cordiform or sub -oval ; tentacles 

 four or five, the unpaired posterior in position. Eyes two, 

 posteriorly situated, generally small, rarely four. Body long, 

 vermiform, rounded or depressed ; segments numerous ; anal cirri 

 two, short. Tentacular cirri 1 — 4 pairs. Proboscis long, bipartite, 

 with short papillae ; no jaws. Parapodium as a rule simple, 

 with one acicula and a fascicle of compound bristles ; capillary 

 bristles present in the epitocous phase of certain species. Dorsal 

 and ventral cirri foliaceous. 



