HYDROIDA 



63 



200m. 600m. 1000m. 2ooom. 



Text-fig. U. The distribution of Eudendrium capillarc in the Northern Atlantic. 

 (The hatched coastal region indicates a scattered occurence according to the litterature). 



being borne by diminutive polyps. It accordingly appears that the fertile polyps of the species are 

 not always wholly atrophied, as has hitherto been generally snpposed. 



The distribution of Eudendrium capillarc is extremely wide, almost quite cosmopolitan. It very 

 frequently occnrs in the northern seas (Text-fig. U); however, already in the Norwegian Sea and 

 along the west coast of Norway its occurence becomes less frequent, and it does not penetrate very 

 far into the Arctic regions. The species belongs to the middle parts of the littoral region. 



