4 AMERICAN MUSEUM NOVITATES [No. 74 



and probably did so during life. It is too poorly preserved for accurate 

 description, but is apparently nearly circular in outline and of a very 

 delicate texture. In the preserved condition the color is gray, deepening 

 into black on the margin near the point of attachment of the elytrophore. 

 From this point a colorless band runs diagonally to the margin of the 

 elytron . 



In addition to the broad flat type of setae described by Chamberlin 

 in PI. ix, figs. 7 and 8, I find another type having long slender stalks, 

 flattened and with serrated margins toward the ends. 



Station D. 5676; 645 fathoms; bottom temp., F. 39°. 



Station D.5677; 735 fathoms; bottom temp., F. 38.6°. 



Station D.5685; 645 fathoms. 



Station D. 5692; 1076 fathoms; bottom temp., F. 37.1°. 



Halosydna brevisetosa Kinberg 

 Hcdosydna breoisetosa Kinberg, 1855, p. 385. 

 Station D. 5678; 13% fathoms. One specimen. 



Lepidasthenia curta Chamberlin 

 Lepidasthenia curta Chamberlin, 1919, pp. 61-63, PI. v, figs. 4-9. 

 Station D.5683; 630 fathoms; bottom temp., F. 39.1°. 



Polyno'e lordi (Baird) 

 Lepidonotus lordi Baird, 1863, p. 107. 

 Pichilingue Bay, Lower California. Three specimens. 



Eunoe exoculata, new species 



Figures 1 to 4 



Two specimens, one incomplete. The entire specimen is 30 mm. long and 7 mm. 

 in greatest body width. The body narrows somewhat abruptly toward the anterior 

 end, and much more gradually posteriorly. There are 38 somites in the body and 15 

 pairs of elytrophores. No elytron remains in the complete specimen, but the other 

 retains one which is much wrinkled. 



The prostomium is a trifle longer than wide, its greatest width being about in the 

 middle (Fig. 1). Posteriorly it narrows gradually to a base that is not more than one- 

 third the greatest diameter. Anteriorly the narrowing is very slight, each half 

 terminating in a peak which is placed well toward the outer margin and at a consider- 

 able distance from the median tentacle. The median groove is prominent and the 

 ceratophore of the median tentacle is inserted into it to about the middle of the pro- 

 stomium. On either side of the prostomium are two spots which evidently are eyes, 

 though they are not pigmented. I am uncertain if this is normal or if the pigment may 

 not have been removed in the preservation. The posterior pair of these lie on the 

 dorso-lateral surface of the prostomium near its posterior end, the anterior on the 

 ventro-lateral surface at the region of its greatest width, and are not visible in a dorsal 

 view of the head region. 



