POLTCHAETE WORMS — PETTIBONE 549 



Distribution: Widely distributed in the Arctic. Also from Nor- 

 way to English Channel; Labrador to Massachusetts; Bering Sea 

 to central California; Japan. In low water to 516 fathoms. 



Genus Harmothoe Kinbcrg, 1857 

 Key to the species of Harmothoe from Labrador 



1. Anterior pair of ej'^es antero ventral on prostomium (slightly posterior and 



lateral to cephalic peaks), not visible dorsally. Elytra with or without soft 



globular macrotubercles near posterior border H. imbricata 



Anterior pair of eyes anterolateral on prostomium, visible dorsally 2 



2. Elytra with macrotubercles globular, sausage-shaped, or elongate, rodlike, 



not wider at base and sharply set off from elytra! surface . . . H. extenuata 



Elytra with soft macrotubercles near posterior border, wider at base, not 



sharply set off from elytral surface H. impar 



Harmothoe imbricata (Linne, 1767) 



Harmothoe imbricata Moore, 1909b, p. 134 (part; mixed with H. extenuata). — 

 Wesenberg-Lund, 1953, p. 17.— Pettibone, 1954, p. 220, fig. 26,a,c. 



Laenitla glabra Moore, 1909b, p. 135; not L. glabra Malmgren, 1865 (examined 

 in USNM). 



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

 Okak area, Nain area, Hamilton Inlet, Backway, Lake Melville, 

 St. Lewis Inlet, Strait of Belle Isle. Newfoundland. Intertidal to 

 60 fms., on bottoms of mud, sand, and various combinations of mud, 

 sand, sandstone, rock, coral, shells, detritus, and in tide pool; 56 

 specimens, Stations 2, 23, 24, 30, 33, 44, 45, 50, 52, 54, 56, 61, 62, 

 64-66, 70, 71, 73, 75, 77. 



Distribution: Widely distributed in the Arctic. Also Iceland 

 and Norway to Mediterranean and Adriatic; Labrador to New 

 Jersey; Bering Sea to southern California; Japan. In low water to 

 2,030 fathoms. 



Harmothoe extenuata (Grube, 1840) 



Lagisca extenuata Wesenberg-Lund, 1953, p. 25. 

 Harmothoe extenuata Pettibone, 1954, p. 222. 



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

 Nain area, Davis Inlet, Kaipokok Inlet, Hamilton Inlet, east and 

 west ends Lake Melville, St. Lewis Inlet, Strait of Belle Isle, 4 to 

 100 fms., on bottoms of mud, silt, stones, rubble, and various com- 

 binations of mud, coral, sand, rocks, pebbles, stones; 73 specimens. 

 Stations 1, 2, 4, 6, 7, 9, 14, 16, 20-22, 25, 26, 31, 33, 36, 42, 49-51, 

 55, 58, 62, 64, 66-68, 70, 78. Off Labrador: Egg Harbor, 7 fms.; 

 20 miles northeast Nain; shoal southeast of Nain; St. Pierre Harbor, 

 5 fms., all by Owen Bryant, 1908. 



