KONGL. SV. VET. AKADEMIENS HANDLINGAK. BAND. 20. N:0 5. 211 



Syn. PuGodium canaliculatum Kleen, Nordl. Alg. p. 31. 

 Pucus canaliculatus Akesch. Phyc. Scand. p. 258. 



» » Post, et Eupr. Ill, Alg. p. II. 



» » Wg. pi. Lapp. p. 495. 



Pelvetia canaliculata Gobi, Algenfl. Weiss. Meer. p. 51. 



Habitat. It forms a narrow girdle in the upper part of the literal zone, scattered 

 specimens advancing even above high-water mark. Though preferring exposed coasts, 

 it is met with also in sheltered localities, nay, even in the interior of deep bays. It 

 is gregarious, but does not occur any where in great number. On the arctic coast of 

 Norway it bears receptacles during the whole summer. 



Geogr. Distrib. Known from the Norwegian Polar Sea, the White Sea, and Baffin 

 Bay. The only authority for its existence in the last-mentioned region is a specimen in 

 the herbarium of the Copenhague Museum, stated to have been taken at Greenland by 

 WoRMSKiOLD. It probably reaches its maximum of frequency on the northern coast of 

 Norway. The most northerly point from where it is reported is Gjesvser on the north 

 coast of Norway, about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden common and abundant; TromsO 

 amt, common and abundant at the town of Tromso and at Ren5; Finmarken, common 

 and abundant at MaasO, Gjesvser, the south coast of Magero, and Oxfjord, scarce at 

 Talvik. 



The White Sea: Cp. Gobi 1. c. 



Baffin Bay: the west coast of Greenland, according to a specimen in the her- 

 barium of the Copenhague Museum, the particular locality not being noted. 



Fam. TILOPTERIDE.E Thur. 



in Le Jol. Liste Alg. Cherb. p. 16. 



Gen. Scaphospora Kjellm. 



Algenv. Murra. Meer. p. 29. 



Scaphospora arctica Kjellm. 

 1. c. p. 31. 

 Descr. et Fig. Scaphospora arctica Kjellm. 1. c. et t. 1, fig. 1 — 15. 



Habitat. It has been found only once and in little number within the sublitoral 

 zone on gravelly bottom at a depth of 5 — 10 fathoms in a sound with strong current. 

 At the beginning of August it was richly provided with propagative organs. 



Geogr. Distrib. Known only from the eastern Murman Sea. 



Locality: the western mouth of Jugor Shar. 



