KONGL. SV. VET. AKADEMIENS HANDLINGAR. 
Chylocladia clavellosa, 
» articulata, 
Phyllophora membranifolia, 
Chondrus crispus, 
Microcladia glandulosa, 
Ceramium Deslongchampii, 
» circinatum, 
» acanthonotum, 
a. 
Ptilota elegans, 
Callithamnion polyspermum, 
» Hookeri, 
» arbuscula. 
» roseum, 
» corymbosum, 
Diploderma amplissimum, 
Erythrotrichia ceramicola, 
Himanthalia lorea, 
Halidrys siliquosa, 
Fucus spiralis, 
» miclonensis, 
» distichus, 
Laminaria Clustoni, 
» stenophylla, 
Chorda. tomentosa, 
Stilophora Lyngbyei, 
Asperococcus echinatus, 
Ralfsia verrucosa, 
Castagnea divaricata, 
Leathesia difformis, 
Lithoderma lignicola, 
Coilonema Ekmani, 
BAND. 20. N:0 5. 63 
Coilonema Chordaria, 
Aglaozonia parvula, 
Ectocarpus pygmezeus, 
» draparnaldioides, 
» fasciculatus, 
» tomentosus, 
» Lebelii, 
» terminalis, 
» reptans, 
Pylaiella nana, 
Myriotrichia filiformis, 
Chetophora pellicula, 
Enteromorpha complanata, 
Monostroma. latissimum, 
» undulatum, 
» cylindraceum, 
» saccodeum, 
» angicava, 
» arcticum, 
» crispatum, 
Prasiola stipitata, 
Spongomorpha spinescens, 
Cladophora glaucescens, 
Chetomorpha septemtrionalis, 
Ulothrix Sphacelarix, 
Derbesia marina, 
Codiolum longipes, 
» pusillum. 
Calothrix Harveyi, 
Lyngbya semiplena. 
Thus: 
|W 5 2 Spe ec a 36 species representing 10 families, 17 genera, 
PareQides 1... ._...-.. = 20 » 9 » 16» 
Chlorophyllophycex... 17» » 5 » 10 » 
Nostochinee ........ ....... ies » 2 » 2 » 
Total Sum 81 
species representing 26 families, 45 
genera. 
If we leave out the White Sea and the western Murman Sea, the other regions of 
the Arctic Sea that, on account of their situation, ought to present the greatest resem- 
blance to the Norwegian Polar Sea with regard to the composition of the Flora, should 
be the eastern Greenland Sea and the eastern Murman Sea. 
are to be found the following species that are not known from the Norwegian Polar Sea. 
In these sea-regions there 
