316 KJELLMAlSr, THE ALG^ OF THE ARCTIC SEA. 



(?) Gen. Bulbocoleon Pringsh. 



Morph. Meeresalg. p. 8. 



Bulbocoleon Piliferum Pringsh. 

 1. c. 



Descr-. et Fig. Bulbocoleon piliferum 1. c. et t. 1. 



Syn. Bulbocoleon piliferum Cienk. Bericht. p. 24. 



Habitat. It lives endophytic in other algae. I have found it in Dumontia filifor- 

 mis and Myrionema strangidans. I have seen only sterile individuals. 



Geogr. Distrib. Found within the Polar Sea at Nordlanden on the coast of Nor- 

 way and in the White Sea. I cannot state any exact localities. 



Fam. DERBESIACE^ Thur. 



in Le Jol. Liste Alg. Cherb. p. 14. 



Gen. Derbesia Solier, 



Ann. d. So. p. 158. 



Derbesia Marina (Lyngb.) Solier. 



1. c. Vaucheria marina Lyngb. Hydr. Dan. p. 79. 

 Descr. et Fig. Derbesia marina Solier, 1. c. et t. 9. fig. 1 — 17. 



Habitat. It grows in the Polar Sea in the deeper parts of the sublitoral zone, 

 in 10 — 20 fathoms, attached to Lithothainnion soriferum and corals. I have found it 

 only on an exposed coast, in small number. It bore almost ripe zoosporangia at the 

 end of August. 



Geogr. Distrib. Known only from the Norwegian Polar Sea. 



Locality: Finmarken at Gjesvser. 



Fam. BRYOPSIDE^ Thur. 



In Le Jol. Liste Alg. Cherb. p. 14. 



Gen. Bryopsis Lamour. 

 Ess. p. 281. 



Bryopsis Plumosa (HuDS.) Ag. 



Spec. Alg. 1, p. 448. Ulva plumosa Hubs. F1. Angl. p. 571. 

 Descr. et Fig. Bryopsis plumosa Harv. Phyc. Brit. t. 3. 

 Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 422. 



