Diatoms from North-East Greenland. 



227 



In the above list I have given an account of the distribution of 

 the individual species within different districts of the Arctic Seas. 



I have in all 182 marine forms, of which 24 have until now 

 been unrecorded from the Arctic Seas. Hence 158 (86.8 °/o), there- 

 fore by far the greater part, have previously been recorded from these 

 districts. If we now investigate the more detailed distribution, the 

 result will be as follows: — 



(1) From W. Greenl. are known 103 (56.6 «/o) 



— E. Greenl. -f- E. of Greenl. are known 120 (^66.0 ^/o) 



- East Arct. S. are known 125 (68.7 7о) 



17* 



