558 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 105 



Friedrich, 1939, p. 123.— BerkeTey and Berkeley, 1944, p. 2.— Gorbunov, 

 1946, p. 38.— Wesenberg-Lund, 1950a, p. 22; 1950b, p. 61; 1953, p. 45. 

 Aglaophamus malmgreni Hartman, 1950, pp. 116, 118. 



Description: Length 70-120 mm., width including setae 13 mm. 

 Tentacular segment with a noto- and neuropodial setigerous lobe, 

 with a triangular ventral chrus; dorsal tentacular cirri lacking. 

 Parapodia with rami well separated, acicular lobes sharply conical; 

 preacicular lamellae rudimentary; notopodial postacicular lamellae 

 in anterior and median regions unequally bilobed — larger upper one 

 (about length of acicidar lobe) and small ventral one; about equally 

 bilobed in posterior region; neuropodial postacicular lamellae rounded, 

 shorter than acicular lobes. Setae long, flowing. Dorsal cirri long, 

 digitiform. Ventral cirri sharply conical. Branchiae begin usually on 

 setigers 11-13 (10-15), long, cylmdrical, rolled in spiral toward 

 inside (when preserved, may extend out, with tip hooked or curled 

 inwardly); branchiae lacking on last 14-30 segments. Proboscis 

 with the usual 22 terminal papillae — 10 pahs bifid, a single dorsal 

 and ventral one; with 14 longitudinal rows of subterminal papillae 

 (with some additional scattered papillae more distaUy, 17-20 papillae 

 per row (10-13 in Fauvel, 1923), decreasing in size basally; 

 without an unpaired dorsal papilla. Color in alcohol: Deep reddish 

 brown to buff. 



New records: Labrador: East end, middle, and west end Lake 

 Melville, Goose Bay, Terrington Basin; all in Greater Lake Melville 

 area, 8-80 fathoms, on mud bottom; 38 specimens. Stations 29, 39, 

 53, 57, 60, 63. 



Distribution: Widely distributed in the Arctic: Siberian and 

 western Canadian Arctic, Davis Strait, Greenland, Spitsbergen, 

 Norway, Franz Josef Land, Barent Sea, Novaya Zemlya, Kara Sea, 

 Siberian Arctic, Laptev Sea. Also south to Portugal and the Medi- 

 terranean, Gulf of St. La\vrence, Bering Sea, north Japan Sea. In 

 3 to 4,001 fathoms. 



Genus Nephtys Cuvier, 1817 



Nephtys longosetosa Oersted, 1843 



Nephtys longosetosa Pettibone, 1954, p. 268, fig. 30,1. 



New record: Labrador: Hebron Fjord, 8 fms., sand}^ (1 sta- 

 tion, 14 specimens); Station 27. 



Distribution: Widely distributed in the Arctic. Also south to 

 France, Maine, Lower California and Panama, north Japan Sea; 

 Straits of Magellan. In low water to 528 fathoms. 



Nephtys ciliata (Miiller, 1789) 



Nephthys caeca Moore, 1909b, p. 137; not Nereis caeca Fabricius, 1780, 

 Nephthys ciliata Monro, 1939, p. 346. — Wesenberg-Lund, 1953, p. 43. 

 Nephtys ciliata Pettibone, 1954, p. 270, fig. 30,n. 



