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pyriform, furnished with a slender pedicle, sometimes divided
in numerous and very tine hranches. The spicules agree well
with those of Swedish specimens. The largest specimen is
20 mm in length, the radix included; the greatest diameter
not exceeding 3 mm. The colour of dried specimens is
light-grey; preserved in spirit, yellowish, but not as red as Swedish
specimens.
Habitat. Kara Sea, depth 21 fathoms (158 N. S.).
Genus Artemisina Vosmger.
Artemisina suberitoides Vosmser.
Plate 24, fig. 15—17.
Artemisina suberitoides, Vosmser, Tlie Sponges of the »Willem Barents»
Exped. 1880—1881, pag. 25, Plate 1, fig. 16, Plate 4,
fig. 11—14, and Plate 5, fig. 51—55. (In Bijdragen
tot de Dierkunde. Uitgegeven door het
Genoot-schap Natura Artis Magistra, te Amsterdam.)
? Suberites arciger, O. Schmidt, Grundzuge einer Spongien-Fauna des At-
lantischen Gebietes, Leipzig 1870, pag. 47, Taf. 5,
Fig. 6.
There are two specimens of this species, both almost of
the same shape, viz.: more or less rounded. The surface is
smooth and even. The consistency is flesby, much agreeing
with that of Suberites montalbidus Carter and Suberites ficus
E s per (O. S.). Oscula inconspicuous. The largest and best
developed specimen is 30 mm in length, the breadth as well
as the length is about 18 mm.
Skeleton. The skeleton consists of acuate or
sub-spinulate spicules, minute anchorate and great
tricurvate-acerate spicules, the terminations spined.
The acuate spicules (Plate 24 fig. 15). These spicules are
0,5 mm in length, and generally straight; they are not rarelv
furnished with a minute, bulbous inflation at the base
(spi-nulate).
The tricurvate-acerate spicules (Plate 24, fig. 16). These are
very large and vary much in size. The length between both
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