[7] ANNELIDS OF PEOVINCETOWN, MASS. 705 



visible. Some specimens had four eyes ; in this case they are all on the 

 same straight line, the outer pair smaller than the inner. 



The transverse band crossing the segments is densely ciliated, and 

 there is a line of cilia on the posterior face of the branchiae (after the 

 first few segments), near the inner margin. 



Common. Low water to 20 fathoms. 



ETEOKE (Sav.) Orsted. 

 Eteone Alba Webster. 



Annelida Chsetopoda of New Jersey, p. 106, pi. li, figs. 13-16, 1880. 



We found this species in New Jersey, associated with Strehlospio 

 Benedicti Webster, for the most part in mussel beds, in about 15 feet 

 of water. We found it at Wellfleet, associated with the same species, 

 but near high-water mark, in firm mud. 



]N"ot common. 



Eteone cinerea n. sp. 



(Pl. I, Figs. 1-5.) 



Head convex above, flattened below, constricted just back of the or- 

 igin of the superior antennae, sides and anterior and posterior margin 

 convex, (fig. 4.) 



Antennae stout, conical, white, one-third as long as the head. 



Eyes two, minute, black, hardly perceptible in alcoholic specimens. 



Buccal segment a little more than half as long as the head ; from the 

 middle of its anterior margin a small rounded papilla projects. 



Tentacular cirri short; the lower a little longer than the ui^per, and 

 with a sudden falling off in diameter at the outer third ; inner two-thirds 

 fusiform. 



The dorsal cirri (branchiae) have nearly the same shape throughout. 

 On the anterior segments (fig. 1) not quite so large as on the middle 

 segments, and closer to the foot; on the middle segments (fig. 2) re- 

 mote from the foot; on the posterior segments (fig. 3) smaller even than 

 the anterior, but not in contact with the foot; they are all thick, flattened, 

 with nearly straight sides and bluntly rounded end. The ventral cirri 

 are like the dorsal, but smaller. 



The setfe are numerous, quite short; the stem (fig. 5) terminates in 

 two sharp, elongated points ; the appendix, three times as long as the 

 stem, is wide at base, but narrows rapidly to a minute capillary termi- 

 nation. 



Anal segment smooth, cylindrical, as long as the four segments pre- 

 ceding it, without cirri, they having probably been lost. 



The anterior and posterior segments are crossed by a distinct im- 

 pressed line ; the middle segments by two lines. Along the middle third 

 the segments are longer and wider than elsewhere ; the body tapering 

 S. Mis. 110 45 



