196 Ernst Østrup. 



MallemukÇeld 1 sample: some pebbles. 



Hvalrosodde 5 samples, of which 4 in glass vessels, 1 dried 



material. 



Dove Bugt 1 sample, dried powder. 



Lille Snenæs 3 samples, of which 2 in glass vessels, 1: stone. 



Snenæs 1 sample in a glass vessel. 



Stormtougt 1 sample: two bones. 



Stormkap 1 sample, dried material. 



Danmarks Havn .... 2 samples in glass vessels. 



Yderbugten 1 sample, dried material. 



Tester Elv 7 samples, all in glass vessels. 



Basiskæret 1 sample in a glass vessel. 



Tlierraometerfjeld. . . 3 samples, of which 2 dried material, 1: stone. 



Cape Bismarck 1 sample in a glass vessel. 



Nostoc 1 sample, dried material. 



Without locality .... 1 sample in a glass vessel. 



As regards the distribution of the Diatoms collected by the 

 "Danmark Expedition," I have, in the present work, exclusively 

 considered the distribution within the Arctic region, and then I 

 have used the following method: — 



In regard to the marine forms: — 

 W. Greenl. denotes a form found along the coasts of West Greenland. 

 E. Greenl. — a form found along the coasts of East Greenland. 

 Greenl. — a form found along the coasts of both East and 



West Greenland. 

 E. of Greenl. — a form found by Ryder's Expedition on the ice 



or in plankton, and included in my Mar. D. f. 



Østg. 

 East Arct. S. — a form found in one of the other eastern Arctic 



Seas as far as the Strait of Behring. 



In regard to the freshwater forms: — 

 W. Greenl. denotes West Greenland. 



F]. Greenl. — East Greenland. 



Fz. Js. Ld. — Franz-Josef Land. 



Spb. — Spitzbergen. 



В. El. — Beeren Eiland. 



J. M. — Jan Mayen. 



