252 KJELLMAN, THE ALGtE OF THE ARCTIC SEA. 



Geogr. Distrib. Known only from the Norwegian Polar Sea, the most western 

 part of the Murniaii 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 Gjesvajr on the north coast of Norway about Lat. N. 71°. 



Localities: llie Norwegian Polar Sea: Nordlanden common, according to Kleen; 

 Finmarken, local and very scarce at Giesva3r and Öxfjord. 



The Murman Sea: the coast af Russian Lapland. 



The White Sea: at Solowetzki Isles. 



Gen. Mesogloia (Ag.) J. G. Ag. 



Alg. Syst. 2, p. 27; Ag. Syu. Alg. 1, p. XXXVIJ. lim. mut. 



Mesogloia vermicularis Ag. 



1. c. p. 126. 

 Descr. Mesogloia vermicularis J. G. Ag. Spee. Alg. 1, p. 58. 

 Fig. » » Haev. Phyc. Brit. t. 31. 



Exsica. « » Aresch. Alg. Seand. exsicc. N:o 99. 



Syn. Mesogloia vermicularis Gobi, Algenfl. Weiss. Meer. p. 72. 

 » » Kleen, Nordl. Alg. p. 34. 



Hahitat. 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 

 Fleinvger. 



The Murnian Sea: the coast of Russian Lapland at Tri-Ostrowa. 



Fam. MYPJONEMATE.E Thur. 



iu Le Jol. Liste Alg. Cherb. p. 15 et p. 23. 



Gen, Leathesia (Gray.) J. G. Ag. 



Alg. Syst. 2, p. 40; Gray. Brit. Pl. 1, p. 301; cliar. mut. sec. J. G. Ag. Spec. Alg. 1, p. 50. 



Leathesia difformis (L.) Aresch. 



Phyo. Scand. p. 376. Tremella difformis L. Pl. Suec. p. 429, sec. Fr. Fl. Scand. p. 316. 

 Descr. Leathesia marina J. G. Ag. Spec. Alg. 1, p. 52. 

 Fig. n tuberiformis Harv. Phyc. Brit. t. 324. 



Exsicc. » difformis Aresch. Alg. Scand. exsicc. N:o 101. 



Syn. Leathesia difformis Kleen, Nordl. Alg. p. 35. 



