222 AET. 11.^ — A. IZÜKA : 



the median longitudinal line ; and along their outer convex borders, 

 there occur two body- segments. The mouth-opening is posteriorly- 

 bordered by the 3rd, 4tli and 5th segments. 



There are six branchial tufts on each lateral half of the 

 dorsal surface of segments. The first or the innermost branchial 

 tuft is the largest, but does not reach the length of bristles. 

 Dorsal cirri situated on the inner side of the first branchial tuft 

 and in front of the interval between the 2nd and 3rd branchial 

 tufts ; their length about equal to that of the branchiae. 



Branchial tuft arises with a short stem ; and this divides 

 into 3-4 branches, which again divide into branchlets. A little 

 to the outer and ventral side of last branchial tuft, there is 

 situated a large bundle of bristles (figs. 13, 14) ; and inferiorly to 

 the latter there arises a slender ventral cirrus. Dorso-lateral 

 bundle of bristles lies posterior to lateralmost branchial tuft, 

 while a row of dorsal bristles (fig. 15) lies in front of all branchial 

 tufts. 



Anal cirri two, oval and tongue -like. 



Habitat: — Misaki, Aug. 17, 1904; collected by me with a 

 neac- surfet at night, using the light of a lantern submerged about 

 one metre into the sea. 



Genus Chloela Savigny. 



Body more or less oval, with a pair of cylindrical cirri at 

 posterior extremity. Prostomium with 3 tentacles, 4 eyes and a 

 caruncle ; subtentacles 2. Parapodium biramous, the rami very 

 distinct. Branchias pinnate, placed at a dorsal position apart from 

 superior ramus of parapodium. 



