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IV. Chalinese 0. S.
Genus Chalina Grant.
Chalina arbuscula Yerrill.
Chalina arbuscula, Verrill, Un. St, Com. fish., I, pag. 409 and 472.
Several specimens of this species agree closely with
specimens from the west-coast of Sweden, described by
Friste dt in »Bidrag till kännedomen om de vid Sveriges vestra
kust lefvande Spongise», Kongi. Svenska Afet.-Akad. Handlingar,
Bd 21, N:o 6, pag. 50; the rest of the specimens differ a little
from the Swedish ones in the outer shape, but the spicules
are of the same size as those of the Swedish specimens, viz.
0,i5—0,i8 mm in length.
Colour. Preserved in spirit, light-, rarely dark-brown; when
clried a little light er.
Habitat. Taimur Bay, depth 40 fathoms ; Actinia Bay, depth
5—10 fathoms; Port Clarence, depth 4—6 fathoms; Konyam
Bay (Behring Strait), depth 15—16 fathoms (28, 29, 1049, 1058
V.); Mossel Bay, depth 15—20 fathoms (79 Sp.). Several
specimens from all these localities.
Chalina Vega n. sp.
Plate 23, fig. 18, Plate 26, fig. 7.
This species is represented by several specimens, all dredged
up during the expedition of tlie Vega. The sponge is
arbuscu-lar, pedicelled. Surface even. Oscula terminal or often lateral,
slightly elevated. The branches are frequently anastomosing,
a little compressed, tlie greatest- diameter not exceeding 5 mm.
The length of the largest specimen is about 90 mm, divided
into three great branches and furnished with numerous slightly
elevated oscula, placed only on one side. The consistency is
very fragile. The spicules are, as generally, disposed in nets.
The fibres are not so well developed as in other Chalinae which
I have seen.
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