KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 117 
The Murman Sea: f. typica, on the coast of Russian Lapland and the west coast 
of Novaya Zemlya, at the latter place local and scarce; f. cladostephus, on the west 
coast of Novaya Zemlya, more common and abundant than the preceding form; f. fenuissima, 
on the coast of Cisuralian Samoyede-land, on the west cost of Novaya Zemlya and Way- 
gats, here common and abundant. 
The Kara Sea, on the east coast of Novaya Zemlya, on the northern coast of 
The Siberian Sea: f. tenuissima, at Irkaypi scarce, at and about Pitlekay common 
and abundant. 
Bafjin Bay: f. typica, at Cumberland Sound common; on the west coast of Green- 
land in several places, as at Lichtenau, Julianeshaab, Godthaab, Sukkertoppen, Hol- 
stenborg, Godhavn and Rittenbenk. 
Rhodomela larix (Turn.) AG. 
Spec. Alg. 1, p. 376: Fucus larix Turn. Hist. Fuc. 4, p. 23. 
Descr. Rhodomela larix J. G. AG. Spee. Alg. 2, p. 886. 
Fig. Fucus larix Turn. |. c. t. 207. 
Syn. Rhodomela larix Harv. Fl. West.-Esk. p. 49. 
Hab. Nothing is known about the habitat of this species in the Arctic Sea. 
Geogr. Distr. I have not myself had the opportunity of seeing this species in the 
Arctic Sea. It seems to be of very local occurrence here and to belong only to that 
part of it, which lies to the north-east of Behring Strait, having probably immigrated 
there from the Behring Sea, where it occurs abundantly even far towards the north. 
Locality. According to Srrmann (1. c.) it has been found in that part of the 
American Arctic Sea, which stretches along the north coast of western Eskimaux-land. 
Gen. Polysiphonia Grev. 
Fl. Edinb. p. 308, sec. J. G. AG. Spec. Alg. 2, p. 900. 
Polysiphonia parasitica (Hups.) Grev. 
Fl. Edinb. p. 309; Conferva parasitica Hups. Fl. Angl. p. 604. 
f. typica. 
Descr. Polysiphonia parasitica J. G. Ac. Spec. Alg. 2, p. 930. 
Fig. » » Harv. Phye. Brit. t. 147. 
Exsice. » » Crovan, Alg. Finist. N:o 315. 
Syn. Polysiphonia parasitica Kieren, Nordl. Alg. p. 14. 
Habitat. \t grows attached to shells in several fathoms water together with P/o- 
camium coccineum. Only found sterile in the Polar Sea. 
Geogr. Distrib. It belongs to the Atlantic region of the Polar Sea. 
Locality. It has been taken by Kuiren in the southern part of the Norwegian 
Polar Sea at the Giver isles in Nordlanden. 
