BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 24r. AFD. III. N:0 2. 11 



West Greenland ^ and from Russian Lappland ^ have been 

 catalogued by myself. Lastly the diatoms of Luleå Lappmark 

 have been described by Miss Astrid Cleve.^ 



Li order to get a general view of the diatomaceous flora 

 of the polar regions I have compiled from the above works 

 the foUowing list, which may give as good an idea of the 

 distribution of the arctic diatoms as can be formed at 

 present. 



Caloneis fasciata Ldt 



C. Clevei Ldt 



C. silicula Ehb. t. alpina Cl. . . 



v. genuina Cl 



v. infläta Grun 



v. capitata Ldt 



v. niinuta Grun 



v. ventricosa Donk 



v. jenisseyensis Grun 



C. bacillaris Greg 



v. thermalis Grun 



C. obtusa W. Sm 



C. Holstii Cl 



Neidium bisulcatum Ldt . . . . 

 N. afSne Ehb. v. longiceps Greg. 



v. ampliirynchus f. minor . . . 

 f. major 



v. genuina Cl. f. minor . . . . 



f. media 



N. productum W. Sm 



N. iridis Ehb 



v. ampliata Ehb 



N. amphigomphum Ehb 



N. Hitchcockii Ehb 



9-^ 



%9 



1 Öfvers. af K. Sv. Vet.-Akad. Förh. 1881 N:o 10. 



^ Acta societatis pro fauna et flora fennica VIII, 2, 1891. 



=5 Bih. t. K. Sv. Vet.-Akad. Handl. XXL 3, N:o 2, 1895. 



