278 KJELLMAN, THE ALG.E OF THE ARCTIC SEA. 



and the forms distributed in Alg. Scand. exsicc. N:o 176 find 111. Undoubtedly E. 

 siliculosus, f. penicillata Ag. belongs also to the same group of forms as Corticularia 

 Xcegeliana. 



Habitat. The present species as here understood is usually litoral in the Norwe- 

 gian Polar Sea, always sublitoral in the other parts of the Arctic Sea, as far as my 

 observations go. It is attached sometimes to other algai, sometimes to stones. Certain 

 forms of it sometimes occur gregarious in large masses on the coast of Norway. The 

 species lives both on exposed and sheltered coasts. It bears reproductive organs, 

 usually gametangia, in summer. 



Geogr. Distrib. It belongs properly to the Atlantic region of the Arctic Sea 

 and attains here its maximum of frequency, occurring in several different forms. \Vithin 

 the proper Arctic region I have always found it very scarce, usuall}- dwarfed, always 

 in the typical form or such forms as are most nearly allied to this. Its most northerly 

 point is Besselsbay in Smith Sound Lat. N. 81° 7'. 



Localities: The Norwegian Polar Sea: Nordlanden, all the forms recorded, ff. ti/- 

 pica, penicillata, and hiemalis being most common; Tromso amt near the town of Tromso, 

 f. typica; Finmarken: Maaso, Gjesvajr, Oxfjord, and Talvik, ff. arcta, typica, and peni- 

 cillata, the two last-named beino; most common and abundant. 



The Greenland Sea: Skansbaj' at Spitzbergen, f. typica^ scarce. 



The Murman Sea: the coast of Russian Lapland and Cisuralian Saraoyede-land, 

 f. penicillata or forms most nearly approaching this; the west coast of Novaya Zeralya, 

 f. typica, rare. 



The White Sea: cp. Gobi 1. c. 



Baffin Bay: Found floating off Holstenborg. Said to have been collected at 

 Besselsbay by the English expedition under Nares. 



Ectocarpus pygmteus Aeesch. 

 in Kjellm. Skand. Ect. och Tilopt. p. 85. 

 Descr. Ectocarpus pygmieus Kjellm. 1. c. 



Syn. Ectocarpus pygmoeus Kleen, Nordl. Alg. p. 38. 



Habitat. Found growing on shelly bottom at a depth of some fathoms. It has 

 gametangia in July and August on the coast of Norway. 



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



Locality: Nordlanden at Fleinvser and two or three points at Lofoten. Cp. 

 Kleen, 1. c. 



Ectocarpus draparnaldioides Crouan. 

 Alg. Finist. N:o 24. 



Descr. Ectocarpus draparnaldioides Kjellm. Skand. Ect. och Tilopt. p. 37. 

 Exsicc. » » Crouan 1. c. 



Syn. Ectocarpus draparnaldioides Kleen, Nordl. Alg. p. 38. 



