Polychaeta 158 
ONUPHIDIDAE. 
Onuphis conchylega Sars. 
1835. Onuphis conchylega Sars, Beskr. og Iaktt., p. 61, pl. 10, f. 28a—28e. 
1843. Onuphis Eschrichtti Orrstep, Groenl. Annul. Dorsibr., p. 20, pl. 3, f. 
33-41, 45. 
1851. Diopatra Eschrichtii Grup, Fam. Annel., p. 43. 
1865. Northia conchylega Jounsron, Cat. Worms Brit. Mus., p. 138. 
1882. Onuphis hyperborea Hansen, Nyt Mag. f. Natur. 24, p. 268. 
Locauity.—Northwest Territories: Dolphin and Union strait, off Stapylton 
bay. Station 43b. September 14, 1915. Depth, 50-60 meters. Bottom, gray 
mud with pebbles; no alge. 
: The anterior end, consisting of forty-two segments, of a single specimen 
was taken in situ in its tube. It is 40 mm. long with a width, exclusive of 
parapodia, of 3-6 mm. The anterior segments are crossed by reddish-brown 
stripes above, a stripe across the anterior border of each segment. The tube is 
composed of flattened pebbled, fragments of shells and grains of sand in the 
typical manner. 
This species is well-known from Norway, Finmark, Nova Zembla, Iceland, 
Greenland, Davis strait, Bering sea, the eastern coast of North America south 
to Florida and on the European south to Great Britain. In the more southern 
localities mentioned it is usually taken at depths of 40 fathoms and below. 
LUMBRINEREIDAE. 
Lumbrinereis fragilis (O. F. Miller). 
1776. Lumbricus fragilis O. F. MtLuer, Zool. Danica Prodr., p. 216. 
1825. Nereis fragilis BLAINVILLE, Dict. Sci. Nat., 34, p. 454. 
1828. Scoletoma fragilis BLAINVILLE, ibid., 57, p. 492. 
1833. Lumbrinereis fragilis AuDouUIN and Minune Epwarps, Ann. Sci. Nat., 28, 
. 244. 2 
1851. Lumbreoneies fragilis GruBE, Fam. Annel., p. 45. 
1864. Lumbriconereis borealis Kinberg, Ofvers. af K. Vet.-Akad. Férh., no. 10, 
p. 568. 
One specimen referred to this species is among the material from Hudson 
bay. The individual is 180 mm. long, including a regenerated caudal region 
about 15 mm. long and consisting of about forty-five segments. The prostomium 
appears proportionately rather broader across base than usual. Maxille IT 
with five teeth. This form is abundant in northern waters, as about Greenland, 
Nova Zembla, Spitzbergen, Siberia, and Bering strait, and extends southward 
in the Atlantic along both the North American and the European shores. 
Locatity.—Hudson bay, East side, in Richmond Gulf. June, 1899. 15-25 
fathoms. A. P. Low, collector. 
Lumbrinereis sp. 
A single specimen only 7 mm. long of uncertain species. 
Locauity: Arctic Canada: Dolphin and Union strait, off Cockburn point. 
Station 43a. September 13, 1915. Depth, 100 meters. Bottom, gray mud and 
pebbles. No alge. 
