KONGL. SV. VET. AKADKMIENS HANDLINGAK. BAND. 20. N:0 5. 279 



Habitat. Sublitoral, attached to Laminaria diqitata. It bears gametangia at 

 Nordlanden in July and August. 



Locality: The Norwegian Polar Sea: Nordlanden at Lofoten. 

 Ectocarpus fasciculatus Haev. 



Man. p. 40; ex parte. 



Descr. Ectocarpus fasciculatus Kjellm. Skand. Ect. och Tilopt. p. 89. 

 Fig. » » Hakv. Phyc. Brit. t. 273. 



Exsicc. » » Aresch. Alg. Scaud. exsico. N:o 114. 



Syn. Ectocarpus fasciculatus Kleen, Nordl. Alg. p. 38. 



Habitat. This species grows in the litoral zone, scattered, on exposed coasts, 

 usually attached to other algte, as species of Monostroma, occasionally to stones. It 

 bears gametangia in the Norwegian Polar Sea in July and August. 



Geogr. Distrib. It belongs to the Atlantic region of the Arctic Sea, being rare 

 in the northern part, common in the southern. Its northernmost point is Gjesvaer in 

 Finmarken about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden common and abundant; Fin- 

 marken local and scarce at Maaso and Gjesvaer. 



Ectocarpus tomentosus (Hues.) Lyngb. 



Hydr. Dan. p. 132. Conferva tomentosa Huds. El. Ang. p. 594. 



Descr. Ectocarpus tomentosus Kjellm. Skand. Ect. och Tilopt. p. 63. 

 Fig. » » Haev. Phyc. Brit. t. 182. 



Exsicc. » » Akesch. Alg. Scand. exsicc. N:o 110. 



Syn. Ectocarpus tomentosus Kleen, Nordl. Alg. p. 37. 



Habitat. Litoral, attached to other algae, usually Fucacece. It is often gregarious 

 and lives chiefly in localities exposed to a heavy surge. In July and August it has 

 been found with gametangia. 



Geogr. Distrib. Known only from the southern part of the Atlantic region of 

 the Polar Sea. 



Locality: The Norwegian Polar Sea: Nordlanden common and abundant. 



Ectocarpus ovatus Kjellm. 

 Spetsb. Thall. 2, p. 35, 

 Descr. et Fig. Ectocarpus polycarpus Kjellm. Skand. Ect. och Tilopt. p. 93, et t. 1, fig. 5. 

 Syn. Ectocarpus ovatus Kjellm. Spetsb. Thall. 2, p. 35. 

 » polycarpus Kleen, Nordl. Alg. p. 38. 



Habitat. This species is litoral in the Norwegian Polar Sea, attached to Coral- 

 lijia officinalis, sublitoral and fastened to other algae in the Greenland Sea. It grows 



