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(53—54 V.); Lat. 71° 39’, Long. 157° 15’ E., depth 10 fath. (56 V.);
Cape Schelagskoi, depth 12 fath. (58 V.); Pitlekai, depth 15 fath.
(1006 V.); two Engl. miles north from Pitlekai, depth 12 fath.
(1016 V.); -Jugor schar, depth 10—14 fath. (138 N. S.).
V. Renierinse 0. S.
Genus Reniera Nar do.
Reniera cinerea Grant (O. S.).
Isodictya cinerea, Bowerbank, Mon. Brit, Spong., II, pag. 274, III, Plate 48,
fig. 1—5.
Only one specimen was obtained of this species. It thickly
incrusts a Corallineas, Liihothamnium pohjmorphum, and is
fur-nished with one slightly elevated osculum. The specimen is
small, the greatest diameter not exceeding 20 mm, the smallest
about 10 mm, and the thickness 5 mm.
The sponge agrees well with specimens obtained from the
west-coast of Sweden, in external shape as well as in size of
spicules. The colour is yellow.
Habitat. Mossel Bay, depth 9—12 fathoms (54 Sp.).
Reniera tubulosa 11. sp.
Plate 24, fig. 1.
Of this new species there are two specimens, botli obtained
during the arctic expedition 1872—1873. The larger specimen
thickly incrusts a Lithothamnium and is furnished with two
large tubes, in the points of which the oscula are situated. The
length of this specimen is 60 mm, the breadth about 30 mm, and
the heighest tube 30 111111. The diameter of the rounded
tube-opening is 6 mm. The smaller specimen does not incrust, but
grows freely, rounded and furnished with three not elevated
oscula. The surface is smooth, abundantly covered with tine
grains of sand. The consistency is very soft and fragile.
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