ARKIV FÖR ZOOLOGI. 



BAND 7. N:o 4. 



Marine Slollusca of Iceland in tlie collectioiis of 

 tlie Swedisli State Miiseuiii. 



By 

 NILS ODHNER, 



With one plate. 

 Coramunicated Sept. 14th by Hj. Théel and E. Lönnberg. 



Iceland is among the districts of the boreo-arctic region, 

 of wliich least is known as to marine fauna. About the mol- 

 lusca there exist at present almost only ancient works. Be- 

 sides the earliest ones there are only a few works dealing 

 with the MoUusca of Iceland. Of these Mörch's »Faunula 

 Molluscorum Islandise», published in 1869, has hitherto been 

 regarded as the principal source of our knowledge about the 

 distribution of the Mollusca on the Iceland coasts. Besides 

 that work there is one published by Verkruzen in 1872 and 

 containing a list of shells obtained by him during a dredging- 

 excursion to southwest Iceland, and quite recently a treatise 

 was given out by Johansen in 1902, »On the Mollusca 

 between tide-marks at the coasts of Iceland». Further 

 PossELT & Jensen statcd the distribution off Iceland for 

 Greenland mollusca, described by them in 1899. 



During recent years studies on the marine Mollusca of 

 Iceland have been made by G. Bårdarson in connection with 

 geological investigations, published in 1910. As it may be 

 of value for the continuation of the faunistic investigations 

 to know as perfectly as possible the distribution of the 

 fauna from the collections in museums, the present paper 

 has been prepared. The collections described now for the 



Arl-iv fö)- zooUu/i. Band 7. X:o 4. I 



