EKEANTIATE POLYCIIAETA OF JAPAN. 97 



Hyalhiœeia tuhieola (Müll.) 



PL XT, figs. 1—4. 



17nn. Nereis tnbicoln,, Müller. Zool. Dau. Prod. No. 2025. 

 1820, Leodice ,, Savigny. Syst. Aunel., p. 52. 

 183r>. Nereis „ And. et M-Edw. Litt. d. la. France, II, p. 1,54. 



1845. Onnpl.is „ Joljiision. Annel. Mag. Nat. Hist. XVI, p. 6. 



18r)5. Northia „ „ Oat. Brit. Worms, p. 136. 



]8f)8. Oiinpliis tnbieola., Ehlers. Die Borsten würmer, p. 297. 

 18()7. Hyaliiioecia ,, Malmgren. Annul. Polycliaeta, p. 07. 

 1877. „ ,, Grube. Familie Eunicea. 55. Jahresber. d. 



Schl. Gesell, f. vaterl. Cult., p. 9J. 

 1903. Hyalinoecia tulncola, Moore. Proc. Acad. Nat. Sc. Pliilad. Vol. 



LV, p. 4^4. 



Body sIcikUm', niiiformly yello^yisll lirowii, faintly iridescent. 

 Xninbor of segments 128 ; length of body !).") nnn.: breadth at 

 10th segment 5 mm. inclnding parapodia. 



Prostomium slu^vt, ^yitll ."> ^niicli elongate tentacles annnlated 

 at base ; onter latoral tentaek's shoi'tei- than otbei' posterior 

 iciitaelcs by one balf the leiigtb. Eyes 2, bcliiiid base of posterior 

 tentacles. I'eristoiiiiiiin witlioiit any appendage. Segments short, 

 tlie Icii-lJi e(|iial to ;d)nut oiie-third of the breadth. 



l'ai';ip()(Hiiin miii;Miiniis, \yith 2 fascicles of iiristles, each 

 fascicle with an acicnhini and lanceolate slendei' bristles: tlu^ 

 b'rniin;d p.ii'l i>r the bristles is bent aside from tlx' line of shaft 

 ami is sliarp-e(|ged. bectinate bristles with 11 similar teeth. 

 I'osterior hook- 2-to()tlied with a small gnard. Doi'sal cii'rus of 

 anterior segments not prnjceting innch beyond tip of parapodinm, 

 bnt Inii-cr Mil mere posterior segments: yentral cii'rns shortei' than 

 the i|or->al. Anal scLniient with '_' anal cii'ri. 



