24 
Anal cirri are long, slender though coiled, and 
closely articled. 
T. collaris is unique among species of the 
genus Typosyllis in having a nuchal collar; 
tentacular and dorsal cirri are articulate in their 
distal halves but tend to be smooth at the base; 
setae have a spinous shaft and a bidentate ap¬ 
pendage; ventral cirri are short throughout. In 
some respects this recalls SyMs cucullata Mc¬ 
Intosh (1908: 191) from the Isle of Wight, 
which also has a nuchal collar and short com¬ 
posite setae but in this the setae are distally 
entire and the nuchal collar is not so wide as in 
T. collaris. Also, the prostomial antennae are 
much longer. Since setae are presumably en¬ 
tirely composite in S. cucullata, it is perhaps 
also to be referred to the genus Typosyllis. 
Holotype in the U. S. National Museum. 
Type locality. Bering Sea in 42 fm. 
Distribution. Alaska. 
Genus Trypanosyllis Claparede 
Trypanosyllis gemmipara Johnson 
Trypanosyllis gemmipara Johnson, 1901: 405- 
406, pi. 7, fig. 72-76; Johnson, 1902: 302- 
315, fig. 7-17; Moore, 1908: 328; Berkeley, 
1923: 207; Berkeley, 1938: 42; Berkeley, 
1942: 191. 
Collection. Station 82-40 (1). 
The last 10 or more segments are very short, 
taper strongly distally, and are immediately 
preceded, on the ventral side, by a thick cluster 
of 30 or more buds of varying sizes. This 
species has been reported from the northeast 
Pacific. The present record is from near Big 
Koniuji Island in 25 to 30 fm. 
Genus Autolytus Grube 
Autolytus magnus Berkeley 
Autolytus magnus Berkeley, 1923: 210, pi. 1, 
fig. 3, 4; Berkeley, 1938: 47; Berkeley, 1945: 
318. 
Collection. Station 20-40 to 22-40 (1). 
This is a single, atokous, much-coiled in- 
PACIFIC SCIENCE, Vol. II, January, 1948 
dividual. The nuchal epaulettes are long, sin¬ 
uous lappets that extend from the posterior 
margin of the prostomium and diverge outward, 
following the inner bases of parapodia; they 
extend back through the fifth setigerous seg¬ 
ment. The prostomium is trapezoidal, widest 
anteriorly, and longer than wide; it has four 
red eyes near the ectal margins. The three an¬ 
tennae are thick, long, and wrinkled but not 
articulated; the median one exceeds the paired 
ones in length and all are longer than the peris- 
tomial cirri. The anterior dorsal cirri are only 
about half as long as the paired prostomial 
antennae. Palpi are fused medially and only 
about half as long as the prostomium when 
seen from the dorsum. 
Parapodial lobes are thick, the setae disposed 
in close, thick fascicles in anterior and median 
segments but diminish in number farther back. 
Anterior parapodia have five or six acicula in 
each; median parapodia have about four each; 
they are yellow, taper distally and terminate in 
acute points. Setae are entirely composite, the 
shaft distally spinous, the appendage bidentate 
with strong, secondary tooth. 
A. magnus has been described through the 
Sacconereis ( = epitoke female) (Berkeley, 
1923) and the Polybostrichus (= epitoke 
male) (Berkeley, 1938, 1945) stages, both 
from British Columbia. The present atokous 
form is from Canoe Bay, in 15 to 40 fm. 
Family NEPHTYIDAE 
Genus Nephtys Cuvier 
Nephtys caeca (Fabricius) 
Nereis caeca Fabricius, 1780: 304-305. 
Nephtys caeca Johnson, 1901: 401-402; Moore, 
1908: 341; Berkeley, 1924: 290; Berkeley, 
1942: 192. 
Collections. Stations 35-40 (1); 51-40 (1); 
A 61-41 (7); Lazy Bay (10). 
Some individuals measure nearly 8 inches 
long (preserved). Branchiae are not present 
