104 KJELLMAN, THE ALG OF THE ARCTIC SEA. 
Habitat. 1 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. Keen has found 
it with »sporfrukter» (conceptacles of sporangia?) in July and August. 
Geogr. Distr. {t 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 Murman and the White Seas, common and abundant. 
Lithophyllum Arcticum KJeziM. 
Kariska hafvets algv. p. 16. 
Descr. Lithophyllum areticum Kynium. |. c. p. 16. 
Fig. » » » » +t. 1, fig. 1—13. 
Syn. Melobesia lichenoides Dickie, Alg. Sutherl. 1, p. 142 (?). 
Halitat. 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 Dickxtn’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 (LAmour.) Rosan. 
Melob. p. 53; Lamour. Bunn. soc. Pur. 1812, sec. Rosan. |. c. p. 60. 
Melobesia membranacea LAMouR. 
Hist. Polyp. p. 515. 
Descr. Melobesia membranacea Rosan. Melob. p. 66. 
Fig. » » » » t. 2, de. 13—16' och t. 3, fig. 1. 
Syn. Melobesia membranacea Kirpn, 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 Fleinver. 
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