1923] NATURAL SCIENCES OF PHILADELPHIA 223 



the latter, placed close together on the sides of the segments. 

 Posteriorly, while not becoming distinctly longer, but owing to 

 the decreased diameter of the segments, the neuropodia stand out 

 more prominently and the notopodia arise from their bases. Each 

 ramus bears an especially long filamentous papilla behind the 

 fascicle of setsc, which may represent the cirrus, and several 

 similar but smaller papilla; clustered about the ramus. 



Setae of both rami of the first pair of parapodia project directly 

 forward as flat fascicles of eight to ten each enclosing the head 

 laterally. These seta^, alike on the two rami, are as long as twice 

 the body diameter, slender, tapering, articulated, the basal arti- 

 culations being only as long as the diameter ])ut increasing toward 

 the tip to about four times as much. On II the setce of the noto- 

 podium are about one-half as long as on I, similar in form and pro- 

 ject less sharply forward. Those of the neuropodium are stouter 

 and shorter. On all remaining somites the notopodial seta; project 

 laterad, are about half the diameter of the body, slender capillary, 

 regularly tapered, jointed and colorless. Neuropodial setae are 

 stouter (about three times diameter of notopodials), tapering near 

 the end rather abruptly to a filamentous tip, pale brown, with 

 articulations shorter and more numerous than the notopodials. 



Other specimens have a length up to 40 mm. and differ somewhat 

 in the degree to which the body is distended, some being stouter, 

 others more slender. In the first case the papilla; are more widely 

 separated, in the second more crowded than in the type. 



Stations 4307, off Point Loma Lighthouse, 169-490 fathoms, 

 green mud and fine sand; 4326, off Point La Jolla, 243-280 fathoms, 

 soft green mud; 4369, off Point Loma Lighthouse, 260-284 fathoms, 

 green mud and gray sand; 4412, off Santa Catalina Island, 265-274 

 fathoms, green mud and gravel (cotj^pe); 4430, off Santa Cruz 

 Island, 197-281 fathoms, black sand (type); 4517, off Point Pinos 

 Lighthouse, 750-766 fathoms, green mud and sand. 



Flabelligera infundibularis Johnson. 



A single fragmentary specimen probably of this species taken 

 at Station 4412, off Santa Catalina Island, 265-274 fathoms, green 

 mud. 



MALDANIDAE 



Bhodine bitorquata sp. nov. Plate XVIII, fig. 30. 



This well-characterized species is known from fragments of 

 anterior ends only. The type, consisting of the head and seven 

 setigerous somites, is the best preserved and principally served 

 for the description. The piece is 3.8 mm. long with a maximum 



