202 Ernst Østrup. 



Navicula Spicula (Hickie) Gl., Gl. Syn., I, 110; V. H. Trt, 

 Tab. I, fig. 53 (Stauroii. Spie). 

 Loc. Marg. of the Pack-ice. 

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



Navicula Wankaremae Gl., Gl. Syn., I, 109; Gl. Vega Exp., Tab. 



XXXVII, fig. 47 (Nav. kryokonites? Wank.). 



Loc. Pack-ice, Marg. of the Pack-ice. 

 Arct. Distr. East Arct. S. 



Navicula vitrea Gl., Gl. Syn., I, 111; Gl. & Grun., A.D., Tab. IV, 

 fig. 78 (Pleurosigma vitreum). 



Loc. Marg. of the Pack-ice. 



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



Cryrosigraa Hass., 1845. 

 Gyrosigma arcticum Gl., Gl. Syn., I, 119; Perag. Pleuros., Tab.X, 

 figs. 16 — 17 (Rhoicosigma arct.). 



Loc. Off Cape Amélie (Algæ, 2 sampl.), Marg. of the Pack-ice (2 sampl.). 

 Arct. Distr. W. Greenl., East Arct. S. 



Amphipleura Kütz., 1844. 

 Amphipleura rutilans Trentepohl, Gl. Syn., I, 126; V. H. Trt., 

 Tab. V, fig. 255 (Berkeleya Dilhvynii). 

 Loc. Koldewey Isl. (Algæ, 2 sampl.). 

 Arct. Distr. Greenl. 



Amphipleura rutilans Trentepohl var. antarctica (Harvey) Grun., 



V. H. Syn., Tab. XVI, fig. 20 (Berkeleya antarct.). 



Loc. Koldewey Isl. (Algæ). 



Not before recorded from Arct. S. Other records, North Sea, Falkland 

 Isis., Friendh^ Isis. (Cl. 1. с). 



Naviculæ deciplentes Grun., 1880. 

 Navicula subinflata Grun., GI. Syn., I, 141 ; (GI. Vega Exp., Tab. 

 XXXVII, fig. 50). V. H. Trt., Tab. XXVII, fig. 760. 



Loc. Off Cape Amélie (Algæ, 2 sampl.), Marg. of the Pack-ice. 

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



Naviculæ microstigmaticæ GI., 1894. 

 Stauroneis perpusilla Grun., GI. Syn., I, 146; Grun., Fz.Js. L., 

 Tab. I, fig. 50. 



Loc. Marg. of the Pack-ice (3 sampl.). 

 Arct. Distr. E. of Greenl., East x\rct. S. 



Stauroneis pellucida, GI. var. contracta Øst., Øst. Mar. D. Østg., 

 440, Tab. V, fig. 62. 



Loc. Marg. of the Pack Ice. 

 Arct. Distr. E. of Greenl. 



