Numerous medusae are budded successively within the gonotheca and set free; they swim off and mature in the open sea (Allman , p. 48, figs.
It is a special feature of Russia that she has no free outlet to the open sea except on the ice-bound shores of the Arctic Ocean.
They now begin to disappear from the coasts and return to the open sea.
from the open sea.
The narrow strait Strdmmen separates Kvalii from the larger Seiland, whose snow-covered hills with several glaciers rise above 3500 ft., while an insular rampart of mountains, Sord, protects the strait and harbour from the open sea.