64 THE ANNELIDA POLYCHAETA. 



Iphione Kinberg. 



Annulata nova, 1855, p. 12; Fregatt Eugenics Resa. Zool. Annulater, 1857, p. 8; Darboux, Bull. sci. 



France et Belgique, 1900, 30, p. 108. 

 Eumolphe Blainville, Diet. sei. nat., 1828, 57, p. 457 (in part). 

 IphioncUa McIntosh, Challenger Annelida, 1885, p. 58. 



Iphione ovata Kinberg. 



Ofvers K. vet. akad. Forh., 1857, 14, p. 383; Fregatt Eugenics Resa. Zool. Annulater, 1857, p. 8, 

 pi. 3, fig. 8, 8a-8h; 1910, pi. 10, fig. 45, 45e; Baird, Journ. Linn. soc. London. Zool., 1865, 8, p. 181. 



Locality. Paumotu Islands: Rangiroa Island, Mohican Reef. 23 Sep- 

 tember, 1899. One specimen. 



The specimen, which, Uke those of various related species, presents a strik- 

 ing resemblance to certain chitons, is 17 mm. long and 10 mm. wide across the 

 middle. Kinberg's type, taken on Oahu near Honolulu, is a considerably smaller 

 specimen, its measurements being given as 12 mm. long and 7 mm. wide; but 

 in other respects the Rangiroa specimen agrees essentially with Kinberg's account 

 so far as it goes. 



Admetella Mcintosh. 



Challenger Annelida, 1885, p. 124; Darboux, Bull. sci. France & Belgique, 1900, 30, p. 103. 



Admetella hastigerens, sp. nov."^ 

 Plate 9, fig. 6-8. 



In the preserved type there are no distinctive features in the coloration. 

 The body throughout is a grayish yellow. The acicula and setae are yellow, 

 the acicula in part darker, more bronze colored. 



The body is fusiform, being conspicuously narrowed from the middle 

 toward each end, the caudal and cephalic narrowing being equal or very nearly 

 so. Convex both above and below but the venter mesally with a wide and 

 conspicuous neural depression or furrow in which is a large neural ridge. In- 

 tegument thin and transparent along a well-defined median longitudinal band. 

 Total length of type, 80 mm. ; greatest width, exclusive of parapodia, 8.5 mm. ; 

 to tips of parapodia, about 20 mm.; to tips of acicula, near 27 mm. The num- 

 ber of segments is sixty-eight to seventy. 



Prostomium decidedly wider than long, being transversely oblong; the 



' hasta, lance, and gcrere, to bear. 



