18 
PACIFIC SCIENCE, Vol. II, January, 1948 
(Stimpson) and S. wireni, mihi. In the latter, 
the bifid and entire notosetae are about equal in 
number and equally thick; in the former they 
are also about equally thick. In S. alaskensis, 
the bifid setae are not only very few in number 
but are much more slender and very incon¬ 
spicuous. S. alaskensis attains greater size than 
other species of the genus, but this character, 
as also the approximate segmental count, may 
have little significance (see chart on p. 16). 
Holotype in the U. S. National Museum. 
Type locality. Canoe Bay, Alaska, in 25 to 
40 fm. 
Distribution. Southern Alaska. 
Family PHYLLODOCIDAE 
Genus Notophyllum Oersted 
Notophyllum imbricatum Moore 
Fig. 3 a-c. 
Notophyllum imbricatum Moore, 1906^: 217- 
219, pi. 10, fig. 1-3; Moore, 1908: 329; 
Berkeley, 1924: 287; Berkeley, 1942: 190. 
Collection. Station 12-40 (2). 
Dorsal cirri are thick, deeply and broadly im¬ 
bricated, and uniformly drab green; they are 
slightly narrowed distally; sixteenth and post¬ 
median ones are shown in Figure 3 c, b. Neu¬ 
ropodia taper distally and are notched at the 
end of the acicular lobe (Fig. 3 a). There are 
two pairs of nuchal lappets or there may be an 
additional tiny pair on the inner side. 
This is known only from the northeast Pa¬ 
cific; the present record is from the shore of 
Canoe Bay. 
Notophyllum foliosum (Sars) 
Fig. 3 d-f. 
Phyllodoce foliosa Sars, 1835: 60-61, pi. 9, 
fig. 26. 
Notophyllum foliosum Fauvel, 1923: 170-171, 
fig. 16. 
Collections. Station L 18-41 (1); Sand Point 
( 1 ). 
This is smaller than N. imbricatum (above). 
There is a single pair of broad nuchal lappets. 
Dorsal cirri are imbricated; they are suffused 
and streaked with dark pigment, most intense 
at the outer periphery. Dorsal cirri are more 
broadly rounded distally than in N. imbricatum; 
sixteenth and postmedian ones are shown in 
Figure 3 f, e. Posterior neuropodia lack a deep 
incision (Fig. 3 d). 
This has remained unrecorded from the 
Western Hemisphere. The present records are 
from Bare Island in 13 to 15 fm, and from 
Sand Point. 
Fig. 3. Species of Notophyllum. a-c, Notophyllum imbricatum: a, postmedian neuropodium in anterior 
view, setae omitted, X 75; b, postmedian dorsal cirrus, X 15; c, sixteenth dorsal cirrus, X 15. d-f, Notophyl¬ 
lum foliosum: d, postmedian neuropodium in anterior view, setae omitted, X 60; b, postmedian dorsal cirrus, 
X 15; /, sixteenth dorsal cirrus, X 15. 
