NO. 3667 POLYCHAETES—BANSE AND HOBSON 13 
Notopodial setae appear on the fifth setiger. There is an upper short, needle- 
like bristle, subdistally finely serrated [fig. 3f]. There are two thin, smooth cap- 
illaries almost twice as long [fig. 3g]. There are usually three forked bristles which 
appear to be smooth with 20 X 100 magnification [fig. 3h]. With the same mag- 
nification, a very fine serration of the blades of neuropodial setae can barely 
be seen. 
The type of O. arenicola glabra was studied at the Allan Hancock 
Foundation and was found to have forked setae, as in figure 3d, from 
the fourth and fifth setigers. Also, some neuropodial setae are hooded. 
Another specimen, studied in sample 4829, has notopodial setae as 
in figure 3c. 
The forms differ from G. arenicola (La Greca) in the absence of 
cilia on the proboscis and the presence of the forked notosetae. 
Apparently, the articulation of cirri is not a useful character, in view 
of the variability of the present material and our experience with 
Micropodarke dubia, wherein regenerating cirri are not clearly annu- 
lated (see below). The insertion of the unpaired antenna does not 
seem to be of significance either, Neither Dr. O. Hartman nor we wish 
to separate material from California and Washington from the 
Central American species on the basis of details in notopodial setae, 
Gyptis capensis (Day) seems very close to G. brempalpa and is perhaps 
identical. 
Found at stations 2, 4, 5, 7, and 8. New for Puget Sound. Previously 
known from California and Central America, 
Micropodarke dubia (Hessle) 
FIGURES 37, 7 
Kefersteinia dubia Hessle, 1925, p. 32. 
Micropodarke dubia.—Imajima and Hartman, 1964, p. 83. 
There are many broken specimens that agree with the description 
by Hessle (1925) except that the everted proboscis has about 25 
fairly regularly spaced terminal papillae with some additional super- 
numerary ones, rather than ‘about 20.” 
Adding to Hessle’s description, the dorsal tentacular cirri can be 
quite long, the longest reaching the fourteenth setigerous segment. 
Regenerating cirri are not clearly annulated. The ventral tentacular 
cirri are about as long as the body is wide. Lobes that originate 
slightly posteriorly to the bases of the parapodia reach two-thirds 
the length of the parapodia in the first three or four setigerous seg- 
ments; they are about four times as long as they are wide. Posteriorly 
they are much shorter (fig. 37). The anterior lips of the first parapodia 
are almost bilobed as described by Okuda (1938) for M. anemiyar 
Okuda (this record has already been considered a synonym of M. dubia 
