EEEANTIATE POLYCHAETA OF JAPAN. 151 



near its base ; the ventral cirrus is provided dorsally at the basal 

 region with two elongated processes and ventrally with a broad 

 oval expansion. 



Both setose and falcate bristles of the atocous phase are 

 now replaced by paddle-shaped ones (fig. 0) with rather broad 

 end -piece. 



Habitat : — Benin Islands (Mr. S. Hieota) ; Formosa ; Siiimo 

 Koshikijima in Prov. Satsuma ; Naruto-inura in Prov. Suö (!) ; 

 Itsukushima in Prov. Aki (!) ; Hosojima Bay in Prov. Hyuga ; 

 Tomo Harboar in Prov. Bingo (!) ; Kasaoka in Prov. Bittyn (!) ; 

 Kojima Gnlf in Prov. Bizen (!) ; Naruto and Yuki in Prov. 

 Awa (!) ; Sumoto in Prov. Awaji ; Hama-shima and Toba in Prov. 

 Shima (!) ; Shimizu, Komakoshi and Yenoura in Prov. Suruga (!) ; 

 Ito in Prov. Izu (!) ; Misaki in Prov. Sagami (!) ; Kanazawa 

 in Prov. Musashi (!) ; Bay of Tateyama in Prov. Boshin (!) ; 

 Watanoha in the Bay of Matsushima, and the west coast of 

 Kinkwasan in Prov. Pvikuzen (!). 



Kereis mdtvifeva Crube. 

 PI. XVI, figs. 7—14. 



1840. Nereis cultrifera, Grn]ie. Actinien, Ecliinod. nnd Wihiner, p. 



74, Fig. 6. 

 löG2. Nereis Eeaucouchaji, Kefersteiu. Zeit. f. Wiss. Zool. Bd. XII, 



p. 94, Tai. Yin, Fig. 1-6, 12. 

 I860, Nereis caerulea, Jolmstou. Catalogue of Brit, uou-parasitic worms, 



p. 154. 

 1865. Nereis fnha, Quati-efages. Hist, des Aiiuelés I, p. 507. 



1867. Lipcphile margaritacea, MalmgTeii. Knw. polycli., p. 50. 



1868. Nereis cnltrifera, Fillers. Die Boi-stenwiirmer, p. 461. 



