254 KJELLMAN, THE ALG^ OF THE ARCTIC SEA. 



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

 marken common and pretty plentiful, as at Maaso, Gjesvajr, Oxfjord, and Talvik. 



The Greenland Sea: Local and scarce on the north and west coasts of Spitzbergen, 



The Murman Sea: the coast of Russian Lapland; the west coast of Novaya Zemlya 

 local and scarce. 



The Kara Sea: the east coast of Novaya Zemlya at Uddebay scarce. 



The Siberian Sea: at Pitlekay scarce. 



Baffin Bay: Cumberland Sound; the west coast of Greenland at Fiskernaes, Ja- 

 kobshavn, and Whale Islands. Specimens have also been brought home by Berggeen 

 from the west coast of Greenland. 



Elachista lubrica Rupe. 

 Alg. Och. p. 388. 

 Descr. Elachista lubrica Aeesch. Obs. Phyc. 3, p. 18. 

 Exsico. » » » Alg. Scand. exsicc. N:o 217. 



Syn. Elachista flaccida Dickie, Alg. Sutherl. 1, p. 141(?). 

 » lubrica J. G. Ag. Gronl. Alg. p. 110. 



» » Aeesch. 1. c. 



» » Gobi, Algenfl. Weiss. Meer. p. 73. 



» » Kjellm. Vinteralgv. p. 65; Spetsb. Thall. 2, p. 31; Algenv. Murm. Meer. p. 42. 



» » EuPR. 1. c. p. 389. 



Habitat. The present species agrees in habitat with the preceding one. It is 

 usually fastened to Halosaccion ramentaceum, but occurs epiphytic also on other species, 

 as Ehodomela lyccpodioides, Polysiphonia arctica, Rhodymenia palmata, Fucus edentatus, 

 Desmarestia aculeata, Chcetopteris plumosa. In Norway I have found it only at exposed 

 points, but at Spitzbergen it lives also in the interior of deep bays. I have taken a 

 form globosa in May and June at Spitzbergen. It appears to bear zoosporangia all the 

 year round. At Spitzbergen I have seen specimens furnished with such organs in all 

 the months of the year with the exception of June and September, in which months 

 I had no opportunity of examining it. In January, March, April, and December it was 

 very plentifully provided with zoosporangia. On the coast of Norway it has been 

 collected with zoosporangia in July and August, on the west coast of Novaya Zemlya 

 in June and July. 



Geogr. Distrib. The present species has been found hitherto only in those parts of the 

 Polar Sea that are situate north of the Atlantic. It attains its maximum of frequency on 

 the north coast of Norway, but it is abundant also in the eastern part of the Greenland 

 Sea. The most northern point where it is known to occur is Musselbay on the north 

 coast of Spitzbergen Lat. N. 79° 53'.. 



Localities: The Norwegian Polar Sea: Nordlanden at ROst; Finmarken, common 

 and abundant at MaasO and Gjesva3r. 



The Greenland Sea: the north and west coasts af Spitzbergen, pretty common 

 and abundant. 



