Diatoms from North-East Greenland. 217 



Campylodiscus Ehr., 1841. 

 Campylo discus angularis Greg., V. H. Trt., 378, Tab. XXXV, 



fig. 909. 



Loc. Off Cape Amélie (Algæ, 3 sampL 

 A ret. Distr. Greenl., East Arct. S. 



Tropidoraphideæ. 



HautzscMa Grun., 1877. 

 Hantzschia Weyprechtii Grun., Fz. Js. Ld., 55, Tab. I, fig. 60. 

 Loc. Koldewey Isl. Alga-, Pack-ice. 

 Arct. Distr. E. of Greenl.. East Arct. S. 



Nitzschia (Mass., 1845), Grun., 1880. 

 Tryblionella Grun., 1880. 

 Nitzschia Tryblionella Hantsch var. levidensis W. Sm., V. H. Trt. 

 385, Tab. XV, fig. 494. 



Loc. Off Cape Amélie (Algae). 



Arct. Distr. E. Greenl. (in freshwater, East Arct. S. 



Apiculatce Grun., 1880. 



Nitzschia marginulata Grun. var. genuina Grun. forma minuta'! 

 Cl. & Grun., A. D., 72. Tab. nost. XIII, fig. 20. 



Long. 35 Ü. Lat. 7 ju & Ç» [x. Punct. carinal. 16 in 10 /i, striis deli- 

 catis, minime 23 in 10,«. 



Loc. Off Cape Amélie ,5 sampl.). 



This form may be the forma minuta (from Esquimault harbour) of Xitz. 

 marg. gen., of which Grunow has not given a figure. 



Bilobatœ Grun., 1880. 



Nitzschia bilobata W. Sm., V. H. Trt. 389, Tab. XV, fig. 512. 



Loc. Danmarks Havn (Algæ). 

 Arct. Distr. W. Greenl. 



Nitzschia hybrida Grun., CI. & Grun. A.D., 79, V. H. Syn., Tab. 

 LX, figs. 4 — 5. 



Loc. Off Cape Amélie (Algæ). 



Arct. Distr. E. of Greenl., East Arct. S. 



Insignes Grun., 1880. 

 Nitzschia insignis W. Sm., var. arctica Grun., CI. & Grun. A. D., 

 84; Øst. Mar. D. Østg., Tab. VII, fig. 81. 

 Loc. Off Cape Amélie (Algæ). 

 Arct. Distr. E. Greenl., East Arct. S. 



