128 AKT. II. A. IZÜKA : 



blunt terminal ridge. Maxillary forceps stout, strongly hooked, 

 with short, broad, unconstricted holders. 



Habitat: — Sagami Bay, 100 fathoms ("Golden Hind"); 

 Totomi Sea, 34 fathoms ('' Albatross "). 



JEiinice qiiinquiftda Moore. 



PI. Xm, figs. 13—16. 



1908. Eunice quiuqiiifida,, Moore. Proc. Acad. Nat. Sc, Pliilad., Vol. 

 LV, p. 435. 



Prostomium about twice as wide as long, very deeply cleft 

 in front. Eyes 2, large, brown, in the usual position and largely 

 concealed by the free anterior border of the first segment. Ten- 

 tacles all irregularly annulated, rather short, tapering. The first 

 segment very long, especially on the sides where its broad 

 anterior lobe extends forwards considerably beyond the prostomium 

 and forms a prominent fold that covers the prostomium on tlie 

 dorsal side as far as the bases of tentacles. Tlie second 

 segment is very short, about ^ as long as the first ; tentacular 

 cirri tapering, rather faintly annulated in the terminal half, reacli- 

 ing posteriorly to the 5th segment. 



Body little depressed, strongly convex even in the l:»ranchiated 

 region, with very strongly marked neural groove. 



Parapodia similar in form to tliose of E. mucronata, but 

 somewlmt larger and more prominent. Dorsal cirrus relatively 

 short. 



Branchiae begin to appear on al:)out the 8th segment as two 

 or three filaments on each side, increasing to 5 on about tlie 

 10th segment, which number is maintained to the 35th or 37th 

 segment, though occasionally increased up to 11 ; filaments reduced 



