26 B Canadian Arctic Expedition, 1918-18 
1842. Lumbriconais marina Orrsrep, Kroyer’s Naturh. Tidsskr., 4, p. 132, 
ply, & 4. G, 11-12. 
1849. Lumbriconais capitata Leuckart, Aufr. Naturg., 15, p. 163. 
1857. Capitella capitata VAN BENEDEN, Bull. Acad. Roy. Belg., ser. 2, 3, p. 137, 
w. two plates. 
1865. Valla ciliata Jounston, Cat. Worms. Brit. Mus., p. 68. 
1881. Capitella prototypa capitata CzERNIAWSKY, Bull. Moscou Soc. Nat., 56, 
p. 340. 
—. Capitella intermedia CzmRNIAWSKY, ibid., p. 342. 
—.. Capitella similis CzmRNIAWSKY, ibid., p. 46. 
An extremely widespread species. Aside from occurring in the Arctic and 
northern waters, as about Greenland, Iceland, Spitzbergen, and Scandinavia, 
it extends southward in the Atlantic along both the North American and Euro- 
pean coasts, and is found as well in the Mediterranean sea, Black sea, and other 
European waters, Madeiras, straits of Magellan, Kerguelen, and the Antarctic 
region generally. 
Locaities.—Northwest Territories: Bernard harbour. Station 41. July 
20, 1915. One specimen taken at a depth of 3-5 fathoms on a bottom of sandy 
mud among alge. 
Northwest Territories: Bernard harbour: inner harbour. Station 37e. Sep- 
tember 1, 1914. Several broken specimens taken at 2 fathoms on a sandy 
bottom among alge. 
SABELLIDAE. 
Chone ungavana, n. sp. 
Type specimen.—Cat. No. 53, Victoria Memorial Museum, Ottawa. 
One specimen. 
Total length, inclusive of branchiw, about 42 mm. Length of branchie, 
10mm. Diameter, 1.6 mm. 
Branchie, nine pairs. Their bases not concealed by the collar. All broad, 
united by a membrane to within about one mm. of the tips. The free tips 
broad, foliaceous, acuminate, with barbs absent from a terminal region of a 
little more than one-half mm. length. 
Collar simple, on each side folded into the dorsal sinus, with small mesal 
fold subacute. Ventrally the collar not at all incised at the median line, but 
on the contrary, there slightly produced in a very obtuse angle. 
Eight setigerous and one non-setigerous somite in the thorax and about 
forty-eight somites in the abdomen. The body is in general cylindiical, but 
is pointed at the caudal end. The thoracic and the anterior and median somites 
of the abdomen are biannulate. The fcecal groove is deeper and more distinct 
in the caudal region of the abdomen in the usual way. 
The thoracic notopodial sete# are delicate and colorless and are of two 
general types. The superior ones are acute tapering capillary sete which are 
narrowly limbate and finely tipped. The inferior sete are much shorter and 
are of a subspatulate form, with one edge much straighter than the other; 
they are finely mucronate, the mucron long, asymmetrically situated at the 
angle adjacent to the straighter side. (See Pl. VI, fig. 1). The thoracic neuro- 
podials are crochets with long manubria distally curving back, thus elevating 
the beak of the head. Head with beak large and nearly at right angles to 
adjacent part of the principal axis, the crest pectinate in the usual way. (See 
Pl. 6, fig. 2). The tori of the abdomen have uncini with beaks long and less 
divergent than in most other species, the sinus enclosed between the beak and 
body of uncinus narrower at its opening than at bottom. (See Pl. VI, fig.3, 4). 
Locatiry.—Ungava: Hudson strait: King George’s sound. September, 
1897. Depth, 40 fathoms. Diana Expedition. Low and Wakeham. One 
specimen. 
