ANAITIDES COMPSA. 105 



second record, of the species from the Pacific Ocean, the other locality being 

 off the Hawaiian Islands. It was previously recorded also from the Madeiras, 

 from Patagonia, Juan Fernandez, Falkland Islands, Victoria Land and other 

 far southern points. 



Anaitides COMPSA, sp. nov.^ 

 Plate 16, fig. 8, 9; Plate 16, fig. 1-6. 



This is a large and showy species. Inclusive of the parapodia it appears 

 broad, though the body proper is rather slender. It increases in width to about 

 the eightieth somite after which it narrows gradually and continuously to the 

 caudal end. The total length of the type is 175 mm. The greatest width, 

 exclusive of the parapodia, is 4.2 mm., and inclusive of parapodia, 10.4 mm. The 

 number of somites is nearly three hundred and forty-five. 



The prostomium is decidedly flattened dorsoventrally in front and thickens 

 caudad . In outline it is broadly subcordate, wider than long, with the greatest 

 width to the length about as 32 : 27. Laterally and anteriorly widely rounded, 

 in front projecting a Uttle beyond the tentacles or in some nearly on a level 

 with these. A distinct transverse sulcus between the eyes. Eyes small, circu- 

 lar, situated at one third the length of the prostomium from its caudal border, 

 each being about one fourth the width of the prostomium from the lateral edge 

 and thus about one half the width apart. The tentacles are short, stout, and 

 conical, the dorsal ones about one fourth the greatest width of the prostomium 

 and the ventral ones a little longer. At each side the tentacles proximally 

 are almost contiguous and project ectad or a Kttle cephalad of ectad. The 

 tentacles of each side are widely separated from those of the opposite one. 



The first three somites are free from the prostomium and from each other, 

 the first incomplete dorsally. The tentacular cirri of the first somite reaching 

 to the seventh somite. The dorsal tentacular cirri of the second somite reach- 

 ing to the fifteenth somite and the ventrals to the seventh. The tentacular 

 cirri of the third, or first setigerous, somite reaching to somite XIV. 



The somites in general are very short and closely crowded, in the widest 

 region of the body of the type being between six and seven times as wide as 

 long. Throughout most of the body the somites are dorsally weakly mdely 

 convex, the convexity being stronger in the anterior region. There is no mid- 



\KOfi<p6s, elegant. 



