ERKANTTATE FOLYCHAETA OF JAPAN. 95 



extremely finely attenuated tip, wliicli is provided witli minute 

 tul)ercles, wliicli eause forei,L,ni matter of various kinds to adhere to 

 it. Ventral bi-istles stout and somewhat frai^n'le, and with bifid 

 tip wliicli tei'ininates with a simi)le, sli_L!;htIy bent hook; with a 

 slioi't, stroiiL!: s|>ur at the l)ase. 



The first pair of elytra are borne on the third parapodium. 

 The fourth ])a-rap(^diu]n is also (^lytrophorous. The succeeding 

 elytra seem to occur mostly on alternate parapodia. Their number 

 secMus to be aliout fifteen ; they completely cover the back. 



McIntosh remarks tliat in the original specimen of Pahni/ra 

 aurifera described by Savigny"-' the scales seem to have been 

 removed or overlo(^ked. 



Family Eunicidae. 



Body mostly long, consisting of numerous segments ; 

 pi'ostomium distinct, either without any appendage or with 

 tentacles and palpi ; mostly with eyes. First one or two seg- 

 ments lack parapodia, with or withc^ut tentacular cirri. 

 Parapodia mostly uuiramoiis, with comjxniud and simple bristles 

 or oidy with simple bristles. Two or four anal cirri under anal 

 opciiitig. The ])i'()ti'usil)l(' jaw-appai'at lis consists of many maxillaiy^ 

 ])i('('('S and of two mandibles. 



Key to the genera found in Japan. 



<i'. L*jirapo(linin nnirainou.s witli hiisth^s of sovoral kiiuls. 



//. lja,t(U'al lia.lv(\s of inaxillarv a))]-)aratn^i liavo an nnoqual number 

 of jaw-platos, there being one plate more on tlio left than on 

 the right ]-)vo«;toniinni ]-)roviile(l with tentacles. 



* Savigny :— Syst. .1. Ann.;-!., |. IH (|s-2llj. 



