50 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 25 



the cutting edge. The inferior fascicle consists of about 20 setae, longer 

 and distally deeply bifid, with the accessory tooth not nearly reaching to 

 the tip of the main fang. Acicula are dark yellow and occur singly in 

 a ramus. 



Elytra, numbering 15 pairs, have an entire margin and the surface is 

 nearly smooth; in outline they are slightly lunulate. The surface is 

 reticulated with color pattern, most concentrated at the outer lateral 

 surface. Microtubercles are mainly limited to the median surface, in 

 front of the elytral scar; each tubercle is a small rounded knob. The 

 elytral margin lacks fringe. 



H. lunulata has a wide distribution, extending from western Canada 

 to southern California, and in European seas and cosmopolitan areas. 



Harmothoe priops, new species 



Collections. The type is selected from VELERO IV Sta. 5402, 5.4 

 mi from Santa Barbara Point light, southern California, in 14 fms, dark 

 green silt. Many additional specimens come from other shelf and slope 

 depths of southern California, usually in sediments of silt, in shelly or 

 mixed bottoms. 



Length of an ovigerous adult is 7 mm ; width is 0.7 mm ; and segments 

 may not number more than 39. The dorsum is crossed by broad reddish 

 brown pigment bars, most intense between parapodial bases ; a similar 

 pigment forms a broad band across the lower lip. Some elytra, still 

 attached to the body, are colorless except for crescentic areas about the 

 elytrophoral scars. 



The prostomium is approximately trapezoidal in shape, with the 

 posterior length the longest; its frontal margin is deeply incised for the 

 insertion of the median antennae, and the posterior margin is slightly 

 overlaid by the first segment. There are 4 large prostomial eyes, the 

 anterior pair located under the frontal peaks and fully seen only in 

 ventral view. The posterior pair are on the posterior third of the pros- 

 tomium, well within the lateral margins. In addition, about 10 to 20 

 irregularly dispersed small black spots are seen between the posterior eyes 

 and continue behind and at the sides of them. The median antenna is 

 about twice as long as the similar but shorter lateral pair; these are 

 about half as long as the prostomium. The paired palpi are pale or white, 

 thickest at the base and taper distally; they are about two and a half 

 times as long as the prostomium. 



The first segment has equally long dorsal and ventral cirri; they 

 resemble the median antenna in shape and size. The ventral cirrus of the 

 next, or first setigerous, segment is shoved medially so as to be at the 



