210 Ernst Østrup. 



L ОС. Off Cape Amélie (Algæ), Koldewey Isl. (Algæ), Marg. of the Pack-ice. 

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



Pinnularia qvadratarea A. Sch., var. constricta Øst., Øst. Mar. 

 D. Østg. 419, Tab. IV, fig. 23. 



Lo с. Marg. of the Pack-Ice (2 sampl.). 



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



Pinnularia qvadratarea A. Sch., var. dubia Heiden, A. S. Atl., 

 Tab. CCLX, fig. 13. 



Lo с. Marg. of the Pack-ice. 

 Arct. Distr. East Arct. S. 



Pinnularia qvadratarea A. Sch., var. gibbosa Øst., Øst. Маг. D, 

 Østg., 420, Tab. IV, fig. 28. 



Lo с. Off Cape Amélie (Algæ). 



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



Pinnularia Stuxbergii CI., CI. Syn., II, 96 (Finn, qvadrat. Stuxb.) 

 A. S. Atl., Tab. CCLX, figs. 37—38. 



Loc. Off Germ. L. (Land-Ice), Marg. of the Pack-ice (3 sampl.). 

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



Amphora Ehr., 1840. 

 Subg. Amphora CI., 1895. 



Amphora gigantea Grun., CI. Syn., II, 105. Tab. nost. XIII, fig. 11. 



Long. lOju. Lat. lùjLt. Str. 7 in 10 /i. 



Loc. Koldewey Isl. (Algae). 



Not before recorded from Arctic Seas. Several other records. 



The present form is smaller than the typical species. I have given a 

 figure of it, as it seems to me not to agree exactly with Amph. gig. forma 

 minor. (CI. 1. с A. S. Atl., Tab. XL, figs. 28-29). 



Amphora marina (W. Sm.), H. V. H. CI. Syn., II, 103; V. H. Trt., 



Tab. I, fig. 14. 



Loc. Off Cape Amélie (Algæ), Danmarks Havn (Algæ), Koldewey Isl. 

 (Algæ, 4 sampl.). 



Arct. Distr. E. Greenl., E. of Greenl. 



Amphora Proteus Greg., Cl. Syn., II, 103; A. S. Atl., Tab. XXVII, 

 fig. 3. 



Loc. Off Cape Amélie (Algæ, 4 sampl.), Koldewey Isl. (Algæ, 4 sampl.). 

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



Amphora Proteus Greg., var. contigua Cl., A. S. Atl., Tab. XXVII, 

 figs. 7—9. 



Loc. Off Cape Amélie (Algæ, 4 sampl.), Danmarks Havn (Algæ), Koldewey 

 Isl. (Algæ, 2 sampl.). 



Arct. Distr. E. Greenl. 



Amphora virgata sp. nova. Tab. nost. XIII, fig. 12. 



Long. 58^. Lat. 12 j«. Str. 10 in 10;^, ad marginem numeratis. 



Valva lunata, apicibus obtusis. Striis in parte dorsali valvæ 



