DUitlNG THE ARCTIC EXPEDITION. 9 



78° 35' N. ; shores of Hayes Sound, 79° N. ; Floeberg Beach, 

 82° 27' N. ; Egerton Valley, 82° 40' N. From sea-level up to 

 1000 feet. 



Ktz 



Among mud from Floeberg, 82° 27' N. This was observed by 



Moss 



conveyed by currents from the land, or blown off shore with dust 

 from a dried-up pool. 



Hormosipiion arcticum, Berk. 



Near Cape Sabine, about 78 35', and at 82° 27' N. 



PaLMELLACEvE. 



HORMOSPOKA, Sp. 



Fragments only, too imperfect for recognition. In a ravine at 



Port Sheridan, 82° 27' N. 



Kt 



Closely allied, if not identical. Among JVostoc, shores of Dis- 

 covery Bay. 



Anactstis, sp. 



In a pool at the ice-foot, Distant Cape, Discovery Bay. 



GrLCEOCAPSA MAGMA, Ktz. 



Marshes, Floeberg Beach, 82° 27' N. The species lias been 

 found at Disco. 



Diatomace^e. 





Subjoined numbers 1 to 29 are the localities whence the Dia- 

 tomaceae were obtained; and to some brief remarks are appended. 

 Then follows in alphabetical order a list of the genera and species 

 obtained. To each species are added numbers corresponding to 

 the various localities where collected. Thus it will be seen certain 

 species and genera are of much more frequent occurrence than 

 others, a few being got only in one restricted spot. 



1. Near Cape Sabine, 78° 40' N. lat. From dry bed of a stream, 

 along with fragments of Enteromorpha clathrata, the water pro- 

 bably brackish. 



2. Floe-ice, 78° 44' N. 



3. Green water, Smith's Sound, 78 to 79° N. lat. 



4. Smith's Sound, 78° 57' N. Temperature +28° Fahr. Depth 

 210 fathoms. 



