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Obelia longissima, Pallas.
Some very poor specimens from 176° 6’ W. long., seem to
be referable to this species, but small, dry and imperfect
specimens are scarcely to be distinguished for certain from the
fore-going. 0. longissima occurs, but not 0. dichotoma in Clarke’s
Alaskan lists.
Gonothyraea hyalina, Hincks.
One or two specimens occur from the station in 121° 20’
E. long., in the unusually shallow depth of four fathoms. This
species is said by Cl ar k e to be the commonest Campanularian
on the Alaskan coasts.
Fi lei Ium serpens, Hassall.
I have detected this common epiphytic form in two
localities, namely in Long. 11.3° 30’ E., and in Long. 173° 24’ W.
Calycella syringa, Hincks.
Although this species is recorded by Clark e from thé
Shumagin Islands, I have only met with specimens from the
two most westerly stations in the Vega collection, namely from
Yugor Shar, and from the station in 56° 27’ E. long.
Lafoea fruticosa, M. Sars. (Vid. Selsk. Forh., 1864.)
Lafoea gracillima, G. O. Sars. (Vid. Selsk. Forh., 1873).
L. gracillima, S. F. Clarke. (Exploration of Alaska, 1876.)
L. fruticosa, D. W. Thompson. (Will. Barents Hydroids,
1884).
The only specimens of this form in the collection come
from the station in Long. 116° E. at a depth of 36 fathoms.
Its scarcity in the Vega collection is in marked contrast to its
abundance on the Norwegian coast and in Barents Sea, but
this may be due in part to the small depth of water in most
of the Vega stations. Yet Clarke’s Alaskan specimens, are
from tide-marks to 15 fathoms, a very different range to the
deep-water habitat of the same form in the N. Atlantic.
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