NO. 3667 POLYCHAETES—BANSE AND HOBSON 15 
short capillary seta may be present (fig. 3k). In the median and 
posterior parapodia short, thick spines occur, which are not as strongly 
bent as the aciculae. Neurosetae are all spinose. In short ones, the 
hairs are as long as the shafts are wide, so that the setae appear 
comblike. In the longest thin setae, the serration becomes just visible 
under 400 magnification. 
Found at stations 6-8. New for Washington waters. Previously 
known in the North Pacific from southern California. 
Family SYLLIDAE 
Eusyllis blomstrandi Malmgren 
FIGURES 4a-c 
Adding to the description of the Pacific and Arctic material (Petti- 
bone, 1954), we note that the pharynx opening in our material is 
Figure 4.—E£usyllis blomstrandi: a, opening of pharynx; b and c, setae from a median 
parapodium. LExogone lourei (setae not drawn to scale): d, tip of upper simple seta, 
e, compound seta with short blade. Pionosyllis uraga: f, posterior view of median 
parapodium with a dorsal acicula (neurosetae not shown); g, compound seta with long 
blade. Syllis harti: h, partly everted pharynx from the lower right hand side (the 
palps are indicated); 7, blade of median seta from 41st parapodium of type. Dorvillea 
pseudorubrovittata (setae not drawn to scale): 7, tip of simple, flattened seta; 8, compound 
seta. 
