387 
Fabricinae in the Pacific — HARTMAN 
f 
only slightly beyond the ventral collar lobe. 
Eyes consist of a conspicuous pair of dark 
spots at the sides of the peristomial region 
and another similar pair at the sides of the 
pygidial lobe. 
Thoracic notosetae are of two kinds; the 
upper are longer than the abruptly shorter 
lower ones; all have a terminal mucro that is 
longer than that shown by Wesenberg-Lund 
(1941, fig. 4). 
The thoracic collar is obscure except for a 
large midventral lobe that extends across the 
ventrum; it is shown by Berkeley (1930, fig. 
Ig) and Wesenberg-Lund (1941, fig. 2). The 
body is pale yellow and has a dusky, semi- 
circular crescent of dark pigment, open in 
back, across the ventrum of the thorax. The 
anal aperture is dorsal, located in the pygidial 
lobe in front of the eyespots. Tubes are cylin- 
drical, have a translucent, chitinized base, and 
are loosely covered with small sand grains 
attached on edge or broadside. 
Fabricia dubia Wesenberg-Lund was first 
described from the harbor of Copenhagen, 
Denmark, among barnacle growths. In my 
opinion, F. sabella Berkeley (1930, fig. Ig 
only), from stones at Newcastle Island, 
western Canada, is identical. F. atlantica 
(Treadwell) (1932) from New Brunswick, 
eastern Canada, is very similar except for the 
radiolar stalks, which are said to number only 
two pairs; in other respects it appears to be 
identical. 
DISTRIBUTION: Eastern Denmark; Oregon 
and western Canada. 
Other species of Fabricia from the Pacific 
are as follows: 
1. F. pacifica Berkeley and Berkeley (1950: 
66-67), from western Canada, taken at low 
tide, was earlier described as F. sabella Berke- 
ley (1930: 73, 3 figs.). The thoracic collar is 
high and well defined; it is deeply incised on 
the dorsal side; peristomial and pygidial eye- 
spots are present; abdominal uncini are long 
handled and have six or seven teeth, pre- 
sumably in a single pectinate row. 
2. F, ventrilinguata Johansson (1922: 9, 
pi. 4, figs. 1-3) is a marine species from. 
Japan. It has only four, instead of eighty 
thoracic setigerous segments; the abdominal 
count is not known. Presumably, eyes are 
absent. There are three pairs of radioles that 
lack a weblike membrane. Abdominal uncini 
are handled and have teeth in pectinate series. 
The generic status may be doubtful because 
of its low segmental count. 
3. F. sabella (Ehrenberg), 1836, originally 
from western Europe, is recorded by Annen- 
kova (1938: 214) from the north Japan Sea, 
among corallines, without description. 
4. ?F. siaukhu (Annenkova), new combina- 
tion, was originally described as Manayunkia 
siaukhu Annenkova (1938: 214, 230) from 
north Japan, among algae. This has tentacular 
radioles with pinnately arranged filaments and 
is thus not a species of Manayunkia Leidy. A 
thoracic collar is present; it has festooned 
margins and is deeply notched dorsally. The 
tentacular crown has three pairs of radioles; 
each radiole has a long slender tip and the 
many fine filaments end at about the same 
level. There are eight thoracic and three ab- 
dominal setigerous segments; the peristo- 
mium is a smooth ring. Eyes include two in 
the peristomium and one in the pygidium. 
These chatacters agree with those of Fabricia. 
The generic status is questionable because 
abdominal uncini remain unknown. 
In addition, the following species belong 
to the genus Fabricia Blainville: 
1. F. capensis (Monro), new combination, 
was originally described as Oridia capensis 
Monro (1937: 366-370, figs. 1-8), from 
South Africa. There are eight thoracic and 
three abdominal setigerous segments. The 
body is about 10 mm. long and 0.3 mm. 
wide, and the tubes measure 50 to 60 mm. 
long. The tentacular crown has three pairs of 
radioles, each with seven or eight filaments in 
(presumably) a single row. The peristomial 
collar is entire except for a pair of digitate 
lobes at the middorsum. Eyes include one 
pair in the peristomial ring and one pair in 
the pygidium. Thoracic notosetae are slender. 
