Diatoms from North-East Greenland. 237 



Stauroneis Phoenicenteron Ehr., var. amphilepta Ehr., Cl. Syn., 

 I, 149; Herib., Diät. d'Auv., Tab. III, fig. 18. 



Loc. Hvalrosodde, Vester Elv (2 sampl.). 



A ret. Distr. W. Greenl., E. Greenl., Fz. Js. Ld. 



In a sample from Lille Snenæs I found a Stauroneis which corresponds 

 very well with the form in тл' "Danske Diatoméer," Tab. II, fig. 36, which I 

 consider intermediate between Staiir. anceps and Staiir. Phyllodes Ehr. 



Cymbella Ag., 1830. 



Cymbella æqvalis W. Sm., CI. Syn., I, 170; V. H. Svn., Tab. Ill, 



fig. la. 



Loc. Hvalrosodde (2 sampl.). 



Arc t. Distr. W. Greenl., E. Greenl. 



Cymbella affinis Kütz., var. tumida Lgst., CI. Syn., I, 171 (ad 

 Cymb. aft.?). Lgst., Spb., 43, Tab. II, fig. 19. 

 Loc. Hvalrosodde (2 sampl.), Nostoc. 

 Ar ct. Distr. E. Greenl., Spb. 



Cymbella angustata W. Sm., CL Syn, I, 161; W. Sm., Syn., Tab. 

 XVII, fig. 156; Lgst., Spb., Tab. II, fig. 10 (Nav. inæqvilatera). 

 Loc. Hvalrosodde (2 sampl.), Vester Elv. 

 Art. Distr. W. Greenl., E. Greenl., Spb. 



Cymbella Botellus Lgst., Cl. Syn., I, 172; Lgst., Spb., Tab. II, 

 fig. 22 (Cymb. variabilis var. Bot.). 

 Loc. Hvalrosodde. 

 A ret. Distr. E. Greenl., Spb. 



Cymbella Cesatii Rabh., Cl. Syn., I, 160; V. H. Trt., Tab. III, 

 fig. 143 (Nav. Ces.). 



Loc. Hvalrosodde. 



A ret. Distr. W. Greenl., E. Greenl. 



Cymbella gracilis Rabh., Cl. Syn., I, 169; V. H. Trt., Tab. XXVIII, 

 fig. 791 bis, c (Encyonema lunatum). 

 Loc. Hvalrosodde. 

 A ret. Distr. W. Greenl., E. Greenl., Spb. 



Cymbella hebridica Grun., Cl. Syn., I, 169; CL, DiaL Fini., 

 Tab. II, figs. 16—17 (Encyonema hebr.). 

 Loc. Hvalrosodde. 

 Not before recorded from Arctic regions. Several other records. 



Cymbella heteropleura Ehr. var. minor Cl., Cl. Syn., I, 167; 

 Lgst., Spb., Tab. II, fig. 17 (Cymb. Ehrenb. var.). 

 Loc. Hvalrosodde (4 sampl.), Vester Elv. 

 A ret. Distr. E. Greenl., Fz. Js. Ld., Spb. 



Cymbella leptoceros Ehr., CI. Syn., I, 162; V H. Syn., Tab. II, 

 fig. 18. 



