36 AET. II. — A. IZÜKA : 



Ventral bristles in 3 groups : The superior group consisting 

 of about 3 setose bristles (fig. 3), which project beyond the others, 

 each provided with numerous short combs. The middle group, 

 consisting of about 24 stout bristles (fig. 4), each with bifurcate 

 tip and an accessory spur in addition to 7 combs. The inferior 

 group consists of about o bristles (fig. 5) smaller than those of 

 the middle group, each with rounded tip, a very small spur, and 

 relatively long combs. 



Habitat : — Nagai, Prov. Sagami, in the tubes of Thelepus Japo- 

 nicus ]Marenz. (!) ; Misaki (!) ; Choshi in Prov. Shimosa (!) ; Kana- 

 zawa in Prov. Musashi (!) ; Yenoura in Prov. Suruga (!) ; Tomo 

 Harbour, Prov. Bingo (!) ; Sanbongi in Prov. Sanuki (Mr. K. Sato) ; 

 Sakurajima in Prov. Satsuma (Prof. Mitsüküei). 



I*olynoë oeellata Mcintosh. 



1885. Polynoë oeellata, Mclntosli. "Challenger" Annel. p. 12(J. pi. xii, 

 fig. 3 ; pi. xii^, figs. 18, 19. 



This form was dredged oflT Kobe by the " Challenger," from 

 a depth of 50 fathoms. Its main characters, extracted from 

 McIntosh's description, are as follows : — 



Body elongate, reaching 60 mm. in length, with breadth (in- 

 clusive of bristles) of about 2.5 mm. Dorsum of a dull yellowish 

 colour, tinted with olive. Ventrally, the anterior fifth pale, there- 

 after a blackish pigment- spot occurs at base of each parapo- 

 dium. 



Prostomium wider than long ; a large round eye on each side 

 a short distance in front of the lateral prominence, and a smaller 

 one at the posterior border of prostomium. Median tentacle not 

 so long as subtentacles, tapering from base to subterminal 



