104 KJELLMAN, THE ALG^ OF THE ARCTIC SEA. 



Habitat. I have never myself met with this plant in the Polar Sea. According 

 to existing statements, it occurs here, fastened to stones and shells, within the litoral 

 as well as the sublitoral zone, in the latter in 5 — 6 fathoms water. Kleen has found 

 it with ))sporfrukter» (conceptacles of sporangia?) in July and August. 



Geogr. Distr. It belongs to the Atlantic region of the Polar Sea and to the 

 neighbouring part of the arctic region. Its northern limit, as far as known at present, 

 is on the coast of Russian Lapland. 



Localities: The Norwegian Polar Sea: Nordlanden, common and abundant. The 

 western Murnian and the White Seas, common and abundant. 



Lithophyllum Arcticum Kjellm. 

 Kariska hafvets algv. p. 16. 



Descr. Lithophyllum arcticum Kjellm. 1. c. p. 16. 



Fig. » » » » t. 1, fig. 1 — 13. 



Syn. Melobesia lichenoides Dickie, Alg. Sutherl. 1, p. 142 (?). 



Habitat- It grows gregarious on stony bottom in 5 — 10 fathoms water, on pretty 

 open coasts, attached to stones and Lithothamnia. Specimens with mature tetraspo- 

 rangia have been taken in the Kara Sea towards the end of August. 



Geogr. Distrib. It is known with, certainty only from the Kara Sea at 74° 5' N. 

 Lat. I think it is probable however that Dickie's Melobesia lichonoides from Baffin Bay 

 is identical with the present species. 



Localities: The Kara Sea: Uddebay, plentiful. 



Baffin Bay: Fiskernes, Hunde Islands, and Cape Adair (?). 



Gen. Melobesia (Lamoue.) Rosan. 



Melob. p. 53; Lamodr. Bull. soc. Phil. 1812, sec. Rosan. 1. c. p. 60. 



Melobesia membranacea Lamour. 

 Hist. Polyp, p. 515. 



Descr. Melobesia membranacea Kosan. Melob. p. 66. 



Fig. » » » » t. 2, dg. 13—16 och t. 3, fig. 1. 



Syn. Melobesia membranacea Kleen, Nordl. Alg. p. 11. 



Habitat. This species has been found in the Polar Sea, within the upper part of 

 the sublitoral zone, fastened to Fucus vesiculosus f. vadorum; it has been found here 

 in August with reproductive organs. 



Geogr. Distrib. It is known only from the southern part of the Polar Sea, on 

 the coast of Norway. 



Locality: The Norwegian Polar Sea: Nordlanden- at Fleinvger. 



