560 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loe 



Genus Nothria Malmgren, 1867 



Tentacular segment with two short tentacular cirri. Branchiae 



simple, cirriform. 



Nothria conchylega (Sars, 1835) 



Onuphis conchylega Sars, 1835, p. 61, pi. 10, fig. 28,a-e. — Chamberlin, 1920, 

 p. 15.— Fauvel, 1923, p. 415, fig. 164,a-m. — Treadwell, 1937, p. 31. — Annen- 

 kova, 1937, p. 166; 1938, p. 166.— Berkeley and Berkeley, 1944, p. 3; 1948, 

 p. 91, figs. 136-138.— Gorbunov, 1946, p. 39.— Zatsepin, 1948, p. 124, pi. 31, 

 fig. 16.— Wesenberg-Lund, 1950a, p. 26; 1950b, p. 67; 1951, p. 53; 1953, p. 49. 



Nothria conchylega Malmgren, 1867, p. 66. — Moore, 1909a, p. 138. — Hartman, 

 1944a, pp. 335, 340, not pi. 23, fig. 4; 1944b, p. 85, pi. 5, figs. 105-112, pi. 17, 

 figs. 337, 338; 1945, p. 24. 



Description: Branchiae begin on setigers 10-20. Anterior para- 

 podia with presetal lamellar process and large amber-colored uni- 

 dentate hooks. Without compound spinigerous setae. Tube free, 

 greatly flattened, parchmentlike base covered with flat shell frag- 

 ments and pebbles. 



New records: Labrador: Strait of Belle Isle, on bottom of coral 

 and rock, 25 fms.; 1 specimen, Station 2. East Coast North 

 America: Off Newfoundland, Nova Scotia, Maine, Massachusetts, 

 Rhode Island, Delaware Bay, 18 to 430 fms., U. S. Fish Commission 

 (Verrill, identified). West Greenland: Upernavik Harbor, 13 fms., 

 and off Hare Island, 70°20' N., 56° W., 90 fms., 1884, U. S. S. Alert. 

 Bering Sea: Albatross Station 3548, 54°44' N., 165°42' W., 91 fms., 

 1893. 



Distribution: Widely distributed in the Arctic: Siberian and 

 Canadian Arctic, Davis Strait, Greenland, Jan Mayen, Spitsbergen, 

 Novaya Zemlya, Kara Sea. Also Iceland, Faroes, Norway to France 

 and Mediterranean; Labrador to Florida and West Indies; Bering 

 Sea to British Columbia; north Japan Sea to Japan. In low water to 

 954 fathoms. 



FamUy Lumbrineridae 



Genus Lumhrineris Blainville, 1828 



Liimbrineris fragilis (Miiller, 1776) 



Lumhrineris fragilis Moore, 1909b, p. 138.— Pettibone, 1954. p. 275, fig. 31,h-n. 

 Lumhrineris hebes Moore, 1909b, p. 138; not L. hebes Verrill, 1879. 

 Lumbrinereis fragilis Treadwell, 1937, p. 31. 

 Lumbriconereis fragilis Wesenberg-Lund, 1953, p. 51. 



New records: Labrador: Hebron Fjord, Hamilton Inlet, St. 

 Lewis Inlet, 5-13 fms., on various combinations of mud, sand, sand- 



