Indleveret å Januar 1881. 
pr jeg gaar over til Behandlingen af det mig overdragne 
Materiale, skal jeg forudskikke en kort Bemærkning 
over den Form hvori det vil fremkomme. 
Arbeidet vil blive delt i to Afdelinger. I den første 
behandles Alt, hvortil der kan knytte sig mere Interesse 
og give Anledning til flere Bemærkninger end den vertikale 
og horisontale Udbredelse; her vil saaledes alle de nye 
Former blive beskrevne og afbildede og nogle Slægter vil 
for de aretiske Representanters Vedkommende faa en mono- 
grafisk Behandling. Den anden Afdeling kommer at inde- 
holde en katalogisk Fortegnelse over samtlige under Expe- 
ditionens 3 Togter i 1876, 1877 og 1878 fundne Mollusk- 
arter med Angivelse af Findesteder og Dybdeforholde. En 
Liste over Skrabestationerne med Stedsangivelse, Dybde og 
Temperatur ved Havbunden vedføies og hertil refererer de 
ved Arterne angivne Stations Nummere. Foruden disse 
Skrabe-Stationer, der alle foregik fra Skibet, blev der gjort 
Baadskrabninger ved Reykjavik (Island), Jan Mayen, Bodø, 
Tromsø, Hammerfest, Norskøerne (Spitsbergen), Magda- 
lenabay (Spitsbergen) og Adventbay (Spitsbergen). 
Den norske Nordhavsexpedition. Herman Friele: Mollusca. I. 
Received January 1881. 
Be recording the results of his labours in working 
up the materials collected on the Norwegian North- 
Atlantic Expedition, the author will briefly notice the form 
he has selected for their arrangement. 
The present Memoir will consist of two sections. In 
the first, is comprised everything of interest not directly 
connected with the phenomena of vertical and horizontal 
distribution. There, accordingly, all the new forms have 
been described and figured, and a few genera, with respect 
to their Arctic representatives, made the subject of mono- 
eraphic treatment. The other section contains a Cata- 
logue of all the Mollusca obtained on the three cruises of 
the Expedition, in 1876, 1877, and 1878, along with a 
statement of the locality and the depth in which each 
species was met with. A List of Dredging-Stations, with 
the latitude and longitude annexed, as also the depth and 
temperature at the bottom, is likewise given; and the 
numbers of Stations, noted for all the species, refer to this 
List. Exclusive of the zoological work prosecuted at the 
dredging-stations, all of which was undertaken in the open 
sea, dredging was also carried on from boat — at Rey- 
kjavik (Iceland), Jan Mayen, Bodø, Tromsø, Hammerfest, 
the Norway Islands (Spitzbergen), Magdalena Bay (Spitz- 
bergen), and Advent Bay (Spitzbergen). 
