KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 51. N:o ||. 83 
spicules are very closely packed in the shaft of the anthocodia. Spicules of the anthocodia 
are slender rods and spindles, 0.25 mm. in length. KOREN and DANIBLSEN mention 0.21- 
0.30 mm., but neither KÖKENTHAL nor I have found a greater length of spicules than 0.25 
mm. The bark of the upper part of the trunk and of the branches are almost without 
spicules; in the lower part of the trunk, irregular rods and stars with long thorns are to 
be found. The inner coenenchym is without spicules. The canal system is similar to 
that of EK. rosea. 
General Distribution: 
Norway, Finmark, 1 sp. (KUKENTHAL, 1907). 
Eunephthya spitzbergensis (DAN.), 1887. 
Diagnosis: Umbellate and basal ramification. 'The anthocodiae do not produce 
any cushions. The armature of the anthocodiae is strong and the spicules are placed 
around the whole of the anthocodiae; the latter are 2—3 mm. in length. The spicules 
of the anthocodiae are spindles, rods and clubs. Generally visible ridges in the antho- 
codiae. (PI. II, fig. 14.) 
1907, Eunephthya spitzbergensis, KUKENTHAL. 
1912 a, Euwnephthya florida (pars), BrRoca. 
KÖKENTHAL retains a division of this species into different varieties beside the forma 
lypica, viz. var. aurantiaca, var. arborescens, var. violacea. I have not rediscovered these 
different types within the collections which I have investigated. The transitions between 
the different types are very numerous, if we take into consideration all the specimens both 
those in the Swedish State Museum and those in the Norwegian collections, which I have 
investigated. The general notes which I have communicated below also refer to the 
characteristics of all the £. spitzbergensis-specimens. 
The trunk is visibly furrowed, with a membranous base. 'The ramification is sparse, 
and the trunk is evident, with scattered branches. These latter are basally divided; 
more seldom dicotomical. By these means there is produced a more scattered arrange- 
ment of the anthocodiae, and we do not find the »cushions» in this species. The anthocodiae 
are placed 4—6 on every branch, 2—3 mm., and are provided with visible ridges, on which 
the armature has, too, been concentrated. The spicules of the anthocodiae consist of 
rods and spindles which in places pass into clubs. They have scattered, low thorns 
and are placed around the whole of the anthocodia, even in the lower part of the antho- 
codia. Length of the spicules: 0.15—0.32 mm., generally about 0.20—0.25 mm. On the 
dorsal side the spicules are placed along the whole of the anthocodia in longitudinal rows, 
and with the somewhat more strongly thorned part directed outwards towards the sur- 
face. The broad, short tentacles are practically without spicules and so are the pinnulae. 
Only at the base of the tentacles are there found short rods, 0.1 mm. in length. In the 
bark of the branches and in the bark of the upper trunk, spicules are, in general, wanting; 
sometimes there are spicules and other calcareous bodies with a length of 0.07—0.14 mm. 
In the lower part of the trunk are found numerous spicules, 0.07—0.10 mm. in length, 
