210 ABT. ir. — A. IZUKA : 



middle of the ventral border of parapodinm arises a triangular 

 process with broad base. Ventral ramus with an acicnla and 

 a bundle of 12 — 18 compound bristles. Distal end of bristle 

 shaft with 5 or 6 spikes on each side ; end-piece broad, minutely 

 selTated and very finely tipped. 



Anal segment with two short and broad anal cirri. 



Habitat: — "South Japan" (Makenzellee) ; Sagami Bay, 100 

 fathoms (" Golden Hind "). 



JS'otoj^hylluni saganiianuni n. sp. 

 PL XXI, figs. 7—9. 



The following description of this species is based on an uni- 

 que specimen collected in Yodomi, in the Bay of Sagami, 40 

 fathoms, on July 29th, 1907. 



Body linear, consisting of 116 segments, measuring 43 mm. in 

 length and 3.5 mm. in breadth including parapodia. The large 

 phyllodes, which are imbricated and entirely cover the dorsal 

 surface of body, are white with a light bluish tint ; ventral 

 surface of body yellowish. 



Body greatly arched dorsally and flattened ventrally. 



Prostomium longer than broad, boldly pentagonal, posteriorly 

 with broad base ; the two sides adjacent to base almost 

 parallel ; the remaining two sides antero-lateral and slightly 

 concave, fi-om which concavity arises the dorsal pair of tentacles. 

 Ventral pair of tentacles slightly in advance of the dorsal. All 

 the tentacles not cylindrical, but sHghtly flattened and with 

 fine tip ; their length equal to about J that of prostomium. 



Eyes two, very large and elliptical in outline, their long 

 axes parallel to the axis of Ijody. Median tentacle about 



