252 KJELLMAN, THE ALG OF THE ARCTIC SEA. 
Geogr. Distrib. Known only from the Norwegian Polar Sea, the most western 
part of the Murman Sea, and the White Sea. Already in the most northern part of 
the Norwegian Polar Sea it becomes rare. The northernmost point where it has been 
collected is Gjesveer on the north coast of Norway about Lat. N. 71°. 
Localities; The Norwegian Polar Sea: Nordlanden common, according to KLEEN; 
Finmarken, local and very scarce at Gjesver and Oxfjord. 
The Murman Sea: the coast af Russian Lapland. 
The White Sea: at Solowetzki Isles. 
Gen. Mesogiloia (Ac.) J. G. AG. 
Alg. Syst. 2, p. 27; Ac. Syn. Alg. 1, p. XXXVIJ. lim. mut. 
Mesogloia vermicularis AG. 
Ie es je WPXey 
Descr. Mesogloia vermicularis J. G. Ac. Spec. Alg. 1, p. 58. 
Fig. » » Harv. Phye. Brit. t. 31. 
Eusice. » » Arescu. Alg. Scand. exsicc. N:o 99. 
Syn. Mesogloia vermicularis Gopi, Algenfl. Weiss. Meer. p. 72. 
» » KLEEN, Nordl. Alg. p. 34. 
Habitat. This species grows scattered at a depth of 4—5 fathoms on stony and 
shelly bottom. It has been found with zoosporangia at Nordlanden in August. 
Geogr. Distrib. Known only from the Norwegian Polar Sea and the most western 
part of the Murman Sea. The most northern point where it is known to occur is at 
Tri-Ostrowa on the Murman coast about Lat. N. 68°. 
Localities: The Norwegian Polar Sea: found at Nordlanden in one locality: at 
Fleinver. 
The Murman Sea: the coast of Russian Lapland at Tri-Ostrowa. 
Fam. MYRIONEMATEX Tuor. 
in Le Jou. Liste Alg. Cherb. p. 15 et p. 23 
wo. 
Gen. Leathesia (Gray.) J. G. Ac. 
Alg. Syst. 2, p. 40; Gray. Brit. Pl. 1, p. 301; char. mut. sec. J. G. Ac. Spec. Alg. 1, p. 50. 
Leathesia difformis (L.) ARgscu. 
Phye. Scand. p. 376. Tremelia difformis L. Fl. Suec. p. 429, sec. Fr. Fl. Scand. p. 316. 
Descr. Leathesia marina J. G. Ag. Spec. Alg. 1, p. 52. 
Fig. > tuberiformis Harv. Phyce. Brit. t. 324. 
Eesice. » difformis Argscu. Alg. Scand. exsicc. N:o 101. 
Syn. Leathesia difformis Kuen, Nordl. Alg. p. 35. 
