8 HANS Kl^ER. ON THE BOTTOM DEPOSITS. [SEC. ARCT. EXP. FRAM 



Remarks on some of the Species of Foraminifera. 



On looking at the list of the Foraminifera from the stations, it will 

 be seen that very few of the species appear in any quantity. Among 

 the characteristic species of more general occurrence may be mentioned 

 the large and beautiful forms, Hyper ammina nodulosa and Haplo- 

 phragmium canariense, of which vigorous and well developed speci- 

 mens appear in Gaase Fjord. Spiroplecta biformis, Nodulina arctica 

 and Textularia Williamsonii are also species that are found in the 

 same localities in comparatively large numbers. Among the adherent 

 forms occurring are the cosmopolitan Truncatulina sp. and the Poly- 

 stomella striatopnnctata var. incerta. 



The arctic nature of the fauna is shown by the occurrence of large 

 and sometimes well-developed specimens of Polystomella arctica, and 

 further by the small, but characteristic forms, Cassidulina crassa and 

 Pulvinulina karsteni. Spiroplecta biformis and Nodulina arctica are 

 also of arctic origin. 



The rare occurrence of the Lagena forms is to be noted. I found, 

 in fact, only a single specimen of Lagena (L. striata) in these bottom 

 samples, this being in mud from the upper part of Gaase Fjord, from a 

 depth of 15 fathoms. The Lagena species are usually well represented 

 in the arctic and boreal bottom deposits. 



Printed 18. May 1909. 



