Annelids of Alaska— HARTMAN 
45 
Collection. Station 80-40 (1). 
A single small individual, posteriorly incom¬ 
plete, measures only 16 mm. for 35 setigerous 
segments, but the body cavity contains large, 
yolk-laden eggs. The body is broadest in the 
anterior thoracic region. Ventral scutigerous 
plates are very broad through the first four 
setigerous segments and occupy the space across 
the ventrum so that parapodia are dorso-lateral 
in position. The peristomium has a band of 
dark brown eyespots. Branchiae are on the two 
presetal segments and consists of a few short, 
tentacular filaments, each inserted separately 
from the others. Pointed dorsal setae are smooth 
and limbate; they are continued posteriorly 
through at least 35 segments. Uncini are first 
present from the third setigerous segment; they 
have the form originally shown, with a strong 
main tooth and two or three lesser teeth above, 
surmounted by more numerous small denticles. 
This species was first made known from the 
Behm Canal, Alaska, in 130 to 193 fm.; later 
Berkeley (1929: 309) recorded it from British 
Columbia. The present record is from Larsen 
Bay, on the east side of Nagai Island, in 5 to 
25 fm. 
Genus Leaena Malmgren 
Leaena abranchiata Malmgren 
Leaena abranchiata Malmgren, 1866: 385, pi. 
24, fig. 64; Hessle, 1917: 197. 
Collection. Station D 3-41 (1). 4 
The single individual has 10 thoracic setig¬ 
erous segments; uncini are present from the 
second one. Thoracic dorsal setae are broadly 
bilimbate. Uncini occur in double rows only in 
the tenth to sixteenth uncinigerous segments. 
There is a conspicuous, high, dorsal membrane 
across the segment preceding the first setigerous 
one. 
Apparently this is the first record from the 
north Pacific; it comes from Castle Bay, off 
Chignik Bay, in 21 to 52 fm. It has been pre¬ 
viously reported from the north Atlantic. 
Genus Spinosphaera Hessle 
Spinosphaera sp. 
Collection. Station 61-40 (one fragment). 
A single, incomplete fragment consists of 
about 55 setigerous segments and measures 16 
mm. long. There are over 48 thoracic segments. 
Branchiae and peristomial eyespots are absent. 
Thoracic dorsal setae are limbate; some have a 
dentate tip and a subapical spinous region, as 
typical of the genus. Uncini are avicular. The 
record is from Cold Bay, in 15 to 30 fm. 
Genus Polycirrus Grube 
Polycirrus sp. 
Collection. Station 60-40 (1). 
A single individual that cannot be definitely 
referred to any known species has 13 anterior 
thoracic setigerous segments which lack uncini; 
this is followed by a region of over 50 seg¬ 
ments provided with uncini. The collection was, 
made in Leonard Harbor, in 20-25 fm. 
Family SABELLIDAE 
Genus Sabella Linnaeus 
This genus has come to include two groups 
of species; one (to which the genotype S. peni- 
cillus Linnaeus belongs) lacks tentacular paired 
eyespots and the tentacular radiole is not angu- 
late on its external margins; the other (to which 
S. crassicornis Sars belongs) has paired ten¬ 
tacular eyespots and the tentacular radiole is 
strongly angulate on its external margins. Since 
the genera Demonax Kinberg and Parasabella 
Bush were erected for species which belong to 
the genotypic group Sabella, these designations 
must be regarded as synonyms of Sabella Lin¬ 
naeus. It may be desirable to erect a new name 
for the group to which S. crassicornis Sars be¬ 
longs. (See also Hartman, 1942: 78.) 
Sabella media (Bush) 
Parasabella media Bush, 1904: 200-201, pi. 27, 
fig. 3-5, pi. 33, fig. 34-36, pi. 34, fig. 3, pi. 
