THE BRITISH NOKTII-POLAR EXPEDITION. 



131 



Baj by Mr. H. C. Hart ; others come from Cape Frazer in 30 

 fathoms (mud) , Discovery Bay in 5 fathoms, and in 35 fathoms at 

 Hayes Point. 



Eanges from Britain to Finmark, Spitzbergen, Grulf of St. Law- 

 rence, Greenland, and probably in most northern seas. 



Atjtolttus longisetosus, (Erst. 



On a muddy bottom in 11 fathoms in 81° 44' N. lat. 



All are sexual forms (males), and the beautiful iridescence of 

 their long bristles is striking. O. Fabricius* named the same form 

 Nereis prismatica ; and he found them for the most part in masses 

 of a yellow foetid sponge. 



The species ranges from Greenland to Spitzbergen. 



Fam. Nereids. 

 Neeeis zonata, Malmgren. 



Dredged in 15 fathoms, Franklin-Pierce Bay ; bottom-tempe- 

 ture 29°-50. 



Not uncommon at Spitzbergen and Greenland. 



Fam. Lumbeineeeid^. 



LrMBEicoNEEEis FEAGiLis, 0. F. Muller. 

 A specimen of considerable size (about 9 millims. in diameter) 

 from Discovery Bay, in 5 fathoms. 

 Abundant in all northern waters. 



Fam. SCALIBEEGMID^. 



EuMENiA CEASSA, (Erstcd. 



A full-grown example from Cape Frazer, on stony ground, in 

 20 fathoms. 



Eanges from Britain to Scandinavia, to Spitzbergen and Green- 

 land. 



Fam. Halelminthid^. 



Capitella capitata, Fahr. 



A fragment from Discovery Bay. 



Generally distributed in the northern seas. 



Fam. Amphictenid^. 



Cistenides geanulata, X. 

 From Discovery Bay. 



* ' Fauna Grocnlanclica,' p. 302, 



