NO, 3667 POLYCHAETES—BANSE AND HOBSON 43 
This is not one of the species known from this area and may well 
represent the genus Macroclymene, not yet recorded for the northern 
Pacific. Found at station 2. The drawings are of a mature specimen 
taken in August 1963. 
Praxillella affinis pacifica Berkeley 
Having many specimens, we add the following to the descriptions 
by Berkeley (1929) and Berkeley and Berkeley (1952): The dorsal 
rim of the cephalic plate can be split or more or less united. The pro- 
boscideal papillae are pointed as in P. gracilis (Sars) rather than 
smooth as in our specimens of P. affinis (Sars). The fourth setiger is 
the first fully glandular one as in P. gracilis, rather than the third 
setiger as in P. affinis. Feathered setae occur also in the posterior 
bundle of the twelfth setiger, rather than in the tenth or tenth and 
eleventh only. The constriction preceding the pygidium, emphasized 
by Berkeley (1929) for the subspecies, is much more marked in our 
material of P. gracilis than in the form discussed here. 
Numerous eggs of 240y-280u diameter are observed in animals 
collected in November. Young specimens occur together with adults 
in February. 
Rhodine bitorquata Moore 
Posterior ends of this species have apparently not been described 
yet. From one specimen we find that double rows of uncini occur 
through the fifteenth setiger and the first posterior collar occurs on 
the seventeenth setiger, as in R. lovent Malmgren. Arwidsson (1907) 
has stressed that these characters seem to be completely constant 
within species. 
The papillae of the proboscis of our specimen seem to have about 
the same form as in R. loveni, but details could not be made out. The 
margin of the posterior collar of many fragments is practically smooth 
with a slight dorsal notch; the hooks of our specimens also agree with 
the figure given by Arwidsson (1907, fig. 235 for R. loveni) so that the 
only gross difference of R. bitorquata from R. loveni continues to be the 
sharply bent nuchal groove of the former, as emphasized by Berkeley 
and Berkeley (1950). 
Individuals with moderately numerous, lens-shaped eggs of up to 
140 largest diameter are observed in January. Young animals are 
found in February. 
Two individuals from station 4 (mean grain size 0.104 mm) have 
very coarse sediment (many particles of 0.15-0.20, up to 0.25 mm) and 
two specimens from station 7 (mean grain size 0.009 mm) have fine 
material (few grains reaching 0.05 mm) in their intestines. On the 
sediment studied, the species thus seems to be a nonselective deposit 
feeder. 
