KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 5l. N:o |l. 67 
mum coralloides (p. 18). The shape of the anthocodiae recalls Sympodium abyssorum, 
and the spicules have the same character as in G'. fruticosa. The anthocodiae, which are 
very few and widely scattered, retain in their upper part spindles and rods, 0.4 mm. in 
length, in the lower part these are 0.20 mm. and in the calyx 0.15 mm. In the calyx the 
short rollers with girdles are in the majority; there are also crosses and a few double stars. 
Sympodium hyalinum is nothing but a greatly changed specimen of Gersemia fru- 
ticosa. I shall denote this, instead of Sympodium hyalinuwm, as Gersemia fruticosa forma 
membranea. (Fig. 7.) 
Clavularia frigida. 
From an investigation of DANIELSEN'S type specimen I am convinced that this 
species certainly does not belong to Clavularia, but is a Gersemia and G. fruticosa. 
On a worm tube lie two small colonies. Each of these consists of two to three an- 
thocodiae, which are placed close together, on a membranous base. Of these anthocodiae, 
which are of different sizes, one is placed on the side of the other. This fact is of the 
same nature as that pointed out by BRocH concerning a small specimen of Gersemia fru- 
ticosa, obtained at station 119 by Duc D ORLÉANS” campagne arctic (BRocCH, 1912). 
All traces of a calyx are wanting and a bend in the middle of the anthocodia is 
the only thing that may be supposed to separate the lower part of the anthocodia from 
the upper. The armature is altogether in accord with that of G. fruticosa. 
DANIELSEN has, in this case, been misled by the few, but large anthocodiae, which 
are apparently placed on a membranous disc. The whole, however, is nothing but very 
small colonies of G. fruticosa, with a few, well-developed anthocodiae and an insignificant 
development of trunk. On a comparison between Clavularia frigida and a number of 
very small specimens of G. fruticosa, I am convinced of the correctness of my opinion. 
I refer Clavularia frigida DAN. to G. fruticosa forma membranea. 
Habitat: 
Norway, Lofoten, 144—180 met. (G. O. SARS), 1 sp. 
Further Distribution: 
Norwegian Sea, 1,977 met. (GRIEG, 1887), Spitzbergen, 475 met. (DANIELSEN, 1887). 
Gersemia fruticosa (Sars) var. pallida n. var. 
Diagnosis: The spicules of the branch bark (basal spicules) are without rollers with 
irregular girdles, spindles with scattered thorns and without girdles.. A few clubs exist, 
which have long thorns. The spicules in the upper part of anthocodia with numerous 
clubs, beside the spindles. 
The colony is about 7 cm. in height and somewhat unsymmetrical in shape. 
The branches exist mostly at one side and have one direction, leaving one side of the 
trunk free. The branches are rather long and generally further divided. 'The anthocodiae 
are placed close together on the small branches and have an obvious calyx. 'The arma- 
ture is characterized by the existence of clubs in the upper part of the anthocodia; the 
