EKKANTIATE POLYCHAETA OF JAPAN. 



39 



Eye of anterior pair at about middle of lateral faces ; that of 

 posterior pair, about i- the diameter of the anterior, on the postero- 

 lateral curvature of prostomium. Median tentacular ceratophore 

 about equal in length to prostomium ; style about 4J times the 

 length of prostomium, with slightly enlarged subterminal bulb and 

 short terminal filament. Colour of median tentacle coflee brown, 

 except terminal filament and distal parts of subterminal bulb which 

 are white. C'eratopliore of lateral tentacle § the length of median 



ceratophore, of same shape and colour ; 

 style similar to median style but more 

 slender. Subtentacle a trifle longer than 

 lateral tentacle, its base stout, its terminal 

 half rather slender with very short terminal 

 filament. Dorsal ramus of parapodia small 

 but prominent, bearing a few setae. Dorsal 

 cirrus very prominent, with cirriphore erect 

 and curved laterally ; like tentacles in form 

 and colour. Ventral cirrus arises from low 

 cirriphore al)out opposite dorsal ramus. 



Elytra of anterior Y)Osition delicate, 

 meml)rau(nis. with smootli and non-ciliated 

 margin 



Dorsal bristles {?> or 4 in number) 

 sliglitly (".irvcd and tajxn'ing, Imt n(^t sliar})- 

 ])oiiit('(l ; llu' oilier witli transverse rows of 

 sci'rulac (A). N'oiii'al lu'istles (D) of pale 

 amlxT-coldiii- ; tip hilid, ilic longer terminal 

 ])rocess curved ; ventnd spur straight, large 

 nistio nf ;-,,„] coiif inuous witli distahnost comli ; 

 fi'aiisvcrsc r-oinhs DJ-17. 



/; 



-•1. Dorsal bristle nf /'. c(trbvil<i. 



n32/i. 



/;. Mi.l.lle vent ml 

 sunie :}n2 1. 

 [After .T. P. Jloore.] 



