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spination is also very minute, and in order to be observed
accurately requires a microscopical power of about 500. Thus
I have been able to see a very minute spination of this spicules
also in Swedish specimens. It is therefore without doubt that
our arctic specimens and those from the coast of Sweden, as
well as the specimens described by Carter and Yo sm se r, are
identical. The peculiar difference between Swedish specimens
and those described by Carter, on one side, and specimens from
the arctic regions and Suberites spec, Vosmser, on the other,
exists only in the external sliape. Specimens of the two
latter kinds are deprived of the light layer of sarcode on the
top, a difference, I think, too slight to separate these form s
as different species or varieties. Carter has probably
over-looked the microspination of the above-mentioned spicules.
The largest specimen is 50 mm in diameter, rounded and a
little depressed. Several specimens have the size only of a
hazel-nut.
The surface is smooth and even, sometimes gelatinous.
Most specimens grow freely, only a few are attached to
worra-tubes, stones and other hard objec-ts.
The colour is greyish or grey with a tint of yellow.
Habitat. West from Kamenni-islands, Lat. 74° 8’ N., Long.
82° 12’ E., depth 12 fathoms (21 V.); Taimur Strait, Actinia
Bay, Lat. 76° 18’ N., Long. 95° 30’ E., depth 5—10 fathoms
(29 V.); between Stolbovoi- and Liakov-islands, Lat. 73° 53’ N.,
Long. 138° E., depth 12 fathoms (51 V.); Irkaipij (Northcape of
Siberia), depth 3—6 fathoms (68 V.); Pitlekai, depth unknown
(1006 V.); Konyam Bay, depth 2—16 fathoms (1058 V.); the
west-mouth of Jugor schar, depth 10—14 fathoms (138 N. S.); West
from Clreenland, Tessiursarsvak, depth 3—10 fathoms (522 S.);
the east-coast of Greenland, Lat, 65° 40’ N., Long. 35° 32’ W.,
depth 25—40 fathoms (578 S.).
Suberites spermatozoon O. S. (Fristedt)
Cometella spermatozoon, O. Schmidt, Zoo], Ergeb. Nordseef., PL 1 Fig. 2.
Suberites spermatozoon, Fristedt, op. cit., pag. 18.
This minute Suberites is represented by ten specimens,
which ali agree well with specimens from the west-coast of
Sweden, described by Fristedt in loc. cit. They are ali
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