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The interesting group of Sertularias allied to S. arctica,
Allm., are restricted to the European end of the region.
S. aTbimaris, Mereschk., is a very near, and S. tenera, Sars,
a scarcely more distant relative of this species.
A Lafoea and a small Campanulina appear to be new, and
are described as L. sibirica and C. borealis.
The collection contains altogether about 23 species, gathered
in 17 different localities, throughout the whole northern coast
of the old world from Barents Sea to Bering Strait. Except
in the first few stations, to the westward of 115° E. longitude,
all the specimens are from comparatively shallow water, not
deeper in most cases than 15, and in one case 29, fathoms.
This circurnstance seems to have deprived us completely of
any species of Selaginopsis or Periclaclium, such as
Meresch-kowsky and All man have described from the North Pacific,
and the Willem Barents has brought home from her later
voyages in Barents Sea. We accordingly learn nothing more
of the remarkable distribution of these interesting forms.
The following table shows all the species obtained, with
their localities; and I have added other columns to indicate
such of the species as are already known from Scandinavia,
Barents Sea or Alaska.
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