6 Edward T. Browne. [No. 4 



Pectyllis arctica, Haeckel. The peculiar "sucking-cups" described 

 by Haeckel are only the stumps of broken off tentacles. There 

 are two kinds of tentacles, one series with terminal suckers, the 

 other a series of ordinary filiform tentacles. The gonads are 

 upon lateral lobes of the stomach and are not upon the radial canals, 

 as described by Haeckel, so that its position amongst the Tracho- 

 medusae is questionable. 



That this collection is by no means representative of the 

 medusoid fauna of Norway is clearly shown by the very small number 

 of Leptomedusae which it contains. Taking into consideration the 

 medusae which have been already recorded for the coast of Norway, 

 and also its hydroid fauna, 1 believe that many more species will 

 be found when the fjords have been further explored. Then 

 probably it will be shown that there is a close resemblance between 

 the medusoid fauna of the fjords in the neighbourhood of Bergen 

 and south of them, and the medusoid fauna of the west coast of 

 Scotland and the Shetlands. The collection shows that the oceanic 

 medusae (the Trachomedusae and Narcomeclusae) drift on to the 

 coast and penetrate right up the fjords, just as they come on to 

 the coasts of Ireland and Scotland. 



A few notes on the general distribution of the medusae are given 

 along with the descriptions of the species, and the folio wing lists 

 show the locai distribution of the medusae in the collection. 



Localities within the Arctic Circle. 



Spitzbergen, Red Bay. 



Sarsia princeps. 

 Kvænangen { j ord. 



Ptychogastria polaris. 

 Lofoten, Moskenstrømmen. 



Aequorea norvegica. 

 Lofoten, N.W. of Røst. 



Aglantha digitalis. 

 Foldenfjord. 



Ptychogastria polaris. 

 Skjerstad fjord. 



Aglantha rosea. 



Homoeonema platygonor) 



Ptychogastria polaris. 



