Diatoms from North-East Greenland. 2Ö1 



think it may be a Syimira, not a Frcufilaria. A. Clcve (Bcilr. z. Fl. d. Bär. 

 Ins., 17, fig. 10) describes and figures a Sijncdra Vaiichcria Kùtz. var. per- 

 minuta Grun., which may be a smaller and non-cai)itate form of the present 

 species. 



Fragilaria Lyngb. 

 Fragilaria construens (Ehr.) Grun.; V. H. Trt., 325, Tab. XI, 

 fig. 450. 



Loc. Hvalrosodde. 



Arct. Distr. W. Greenl., B. El. 



Fragilaria (nniiabilis (W. Sm.) Grun. var.?) elliptica Schumann 



de Toni SylL, 687 (Frag, ellipt); V. H. Syn., Tab. XLV, fig. 15. 



Loc. Hvalrosodde. 



Not before recorded from Arctic regions. 



Diatoma De Cand., 1805. 

 Diatoma hiemale (Lyngb.) Kiitz. var. mesodon Kiitz. V. H. 

 Trt., 350, Tab. XI, fig. 471. 



Loc. Oft' Gape Amélie (Algae), Danmarks Havn (Algæ), Koldewey Isl. (Algæ;. 

 Arct. Distr. W. Greenl. 



Tabellaria Ehr., 1839. 

 Tabellaria flocculosa (Roth.) Kiitz. V. H. Trt., 357, Tab. XI, 

 fig. 478. 



Loc. Hvalrosodde, Dove Bugt, Vester Elv (7 sampl.). 

 Arct. Distr. W. Greenl., E. Greenl., Spb., B. El., J. M. 



Centri cæ. 



Melosira Ag. 



Melosira varians Ag. V. H. Trt., Tab. XVIII, fig. 611. 



Loc. Danmarks Havn. 



Not before recorded from Arctic regions. Several other records. 



Cyclotella Kûtz., 1833. 



Cyclotella antiqva W. Sm. V. H. Trt., 446, Tab. XXII, fig. 652. 



I^oc. Hvalrosodde (2 sampl.). 



Arct. Distr. \V. Greenl., E. Greenl., Spb. 



Stephauocliscus (Ehr., 1845) Grun., 1880. 

 Stephanodiscus Astræa (Ehr.) Grun. var. spinulosiis Grun , 

 Grun., Fz. Js. Ld., 49, Tab. V., fig. 2. 

 Loc. Danmarks Havn (Algæ). 

 Arct. Distr. K. Greenl.. Fz. .Ts. Ld. 



