POLYCHAETE WORMS — PETTIBONE 551 



New records: Labrador: Halfway between Cape Mugford and 

 ^ Hebron, 60 fms., Owen Bryant, 1908. Canadian Arctic: Ducketts 

 Cove, Hiu'd Channel, Melville Peninsula, 12 fms., 1933; east end 

 Cobourg Island, Baffin Bay, 75°40' N., 78°50' W., 23^0 fms., 1935; 

 south end Cobourg Island, 75°40' N., 78°o8' W., 11-20 fms.; all 

 by R. A. Bartlett. East Coast North America: Off Nova Scotia, 

 Maine, Massachusetts, 20-112 fms., U. S. Fish Commission (Verrill, 

 identified). 



Distribution: Widely distributed in the Arctic. Also Danish 

 Seas; Labrador to Massachusetts; southern California; north Japan 

 Sea. In 1 to 1,611 fathoms. 



Genus Arcteobia Annenkova, 1934 



Arcteobia anticostiensis (Mcintosh, 1874) 



Eupolynoe anticostiensis Moore, 1909b, p. 136. 

 Arcteobia anticostiensis Pettibone, 1954, p. 225. 



Four specimens were commensal in the sinuous tubes of the tere- 

 bellid Pista Jlexuosa (Grube), one Avorm per tube; also one specimen 

 was in a broken clay tube of a maldanid. 



New records: Labrador: Hebron Fjord, Ironbound Islands, St. 

 Lewis Inlet, 4-95 fms., on bottoms of mud, mud and rock; 9 specimens, 

 Stations 5, 11, 14, 69. 



Distribution: Arctic Alaska; Labrador to Massachusetts; Bering 

 Sea; north Japan Sea. In low water to 123.5 fathoms. 



Genus Gattyana Mcintosh, 1897 

 Key to the species of Gattyana from Labrador 



1. Elytral microtubercles 1- to 4-pronged. Lower neurosetae with the bare 



distal tips not longer than the spinous regions G. cirrosa 



Elytra microtubercles conical and bifid. Lower neurosetae with the bare tips 

 as long as or longer than the spinous regions G. amondseni 



Gattyana cirrosa (Pallas, 1766) 



Gattyana cirrosa Moore, 1909b, p. 135. — Wesenberg-Lund, 1953, p. 15. — Petti- 

 bone, 1954, p. 226, fig. 26,b. 



New records: Labrador: Seven Islands Bay, Hebron Fjord, 

 Nain area, Kaipokok Inlet, Hamilton Inlet, 13-125 fms., on bottoms 

 of mud, silt, sand, and various combinations of mud, rock, pebbles, 

 and sand; in old tubes of Pectiriana; in old clay tube of a maldanid; 

 68 specimens, Stations 7, 9-12, 14, 18, 31, 44, 62. 



Distribution: Widely distributed in the Arctic. Also Iceland, 

 Norway to France; Hudson Bay to Massachusetts; Bering Sea to 

 Washington; north Japan Sea. In low water to 630 fathoms. 



