Diatoms from North-East Greenland. 205 



Loc. Margin of the Pack-ice. 



Arct. Distr. E. of Greenl. 



Navicula cancellata Donk., CI. Syn., II, 30; V. H. Trt., Tab. Ill, 

 fig. 128. 



Loc. Marg. of the Pack-ice, 



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



Navicula cancellata Donk., var. Gregorii Ralfs, A. S. All., Tab. 

 XL VI, fig. 72. 



Loc. Off Cape Amelie (Algæ), Koldewej' Isl. (Algæ). 



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



Navicula cancellata Donk., var. retiisa Bréb, V. H. Trt., Tab. II, 

 fig. 80 (Nav. retusa var. subret.). 



Loc. Koldewe}^ Isl. (Algæ, 2 sampl.), Off Germ. L. (Land-Ice). 



Arct. Distr. East Arct. S. 



Navicula cancellata Donk., var. subapiciilata Grun., A. S. All., 

 Tab. XLVI, fig. 68. 



Loc. Koldewey Isl. (Algæ). 



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



Navicula digito-radiata Greg., CI. Syn., II, 20; V. H. Trt., Tab. Ill, 

 fig. 130. 



Loc. Off Cape Amélie (Algæ, 2 sampl.). 



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



Navicula digito-radiata Greg., var. Cyprinus (Ehr.?) W. Sm., 

 V. H. Trt. 1. с fig. 131. 



Loc. Off. Cape Amélie (Algæ, 2 sampl.). 



Arct. Distr. Greenl. 



Navicula directa W. Sm., var. genuina CI., CI. Syn., II, 27; 

 A. S. At!., Tab.XLVII, figs. 4 -5. 



Loc. OtT Cape Amélie (Algæ, 5 sampl.), Koldewey Isl. (Algæ, 2 sampl.), 

 Marg. of the Pack-ice. 



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



Navicula directa W. Sm., var lata Øst, Øst. Mar. D. Østg., 427, 

 Tab. V, fig. 47. 



Loc. Off Cape Amélie (Algæ). 



Arct. Distr. E. of Greenl. 



In my paper Mar. D. Ostg. (1. с.) the length of the valve is erroneously 

 stated to be 0.37 mm instead of 0.137 mm. The figure, however, is correct. 



Navicula directa W. Sm., var. reinota Grun. A. Sch. N. S. D., 

 Tab. Ill, fig. 2. 



Loc. Danmarks Havn (Algæ). 



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



Navicula directa W. Sm., var. ciineata Øst., Øst. Mar. D. Østg., 

 428, Tab. IV, fig. 42. 



Loc. Marg. of the Pack-ice. 



Arct. Distr. E. of Greenl. 



