EREANÏIATE POLYCHAETA OF JAPAN. 19 



ish pigment spot and situated nearer to lateral than to 

 mesian border ; quite without papillae or hairs on margin. 

 Each elytron, in addition to the brownish spot already alluded to, 

 with minute white spots scattered over its surface, and witli 

 three round pigment patches. These pigment patches are arranged 

 along the longer axis of elytra, i.e., in a line making an angle of 

 about 30 v>^ith the long axis of body, and of which the middle 

 is larger than the other two. 



Typical parapodium (fig. 13) short; dorsal ramus represented 

 by a conical protuberance, with an aciculum and about 17 short 

 setose bristles (fig. 14), of which the distal half of the exposed 

 portion is finely serrated, while the proximal half possesses trans- 

 verse rows of fine hairs. Ventral ramus conical and truncated ; its 

 distal end divided into pro-and post-setal lobes ; the former slightly 

 longer than the latter. Ventral bristles (fig. 15) about 25 in num- 

 ber, long, with a subterminal enlargement and a terminal hook ; the 

 former provided with 7 rows of transverse hairs. 



Ceratophore of dorsal cirrus reaches to about the tip of dorsal 

 ramus; its style long, provided with a brownish red subterminal bul!) 

 and a long terminal filament, which takes up about J the length 

 of tlie entire style. 



Ventral cirrus simple and slender, its tip reaching to base of 

 the bristles. 



Habitat: — Sagami Bay, about 15(3 fathoms (Mi-. K. Aoki). 



JPolf/noë chitoiiifoi'inis (Moore). 



lOUo. Lepidonotus cliitoiiifürinis, Moore. Pioc. Acad. Nat. Sc. Pliilad. 

 A'ol. J.V, p. •]()"), pi. xxiii, figs. 10—11. 



Since I jiavc not been able to examine this species myself, I 

 will give the following extract from ]\1ooee's description. 



