KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 51. N:o ||. 57 
DER). In the upper part of the anthocodia we find spindles which are scattered and 
arranged in 8 double rows converging upwards, the spindles being as much as 0.4 mm. in 
length; towards the base of the anthocodia, the spicules form a transverse wreath. The 
spicules here are rods, arranged in short rows, with a length of about 0.25 mm. In the 
bark of the branches we find rods, 0.17 mm. in length, and broad spicules with girdles, 
a few double stars, and crosses. The rods predominate. 'The coenenchym between the 
coelenterons is furnished with a few, small and irregular spicules. 
As regards the interior construction, STUDER makes the following statement: »La 
structure interne du polypier rapelle encore beaucoup celles des Alcyonides. Le coenen- 
chyme des branches, qui entoure les tubes des polypes, est épais et parcouru par un réseau 
de cellules endodermique qui de filaments solides peuvent se transformer en canaux ca- 
pillaires et s'élargir enfin en tubes endodermiques établissant la communication entre 
les cavités gastrovasculaires des polypes.» 
To this exact description I have only to add that the canal system is a well deve- 
loped endodermal, indirect net; in the upper parts of the branches, there is occasionally 
found direct connection between the coelenterons. As, in addition, a real calyx is want- 
ing, and the construction of the canal system is analogous to that in Gersemia (sensu 
MOLANDER), we have every reason to class the species with this genus. Further, in re- 
gard to the armature, the shape of the spicules, and their distribution in the anthocodia, 
etc., this species bears a great resemblance to 4. clavata. "The variation which is to be 
found in the spicules in the bark of the branches, i. e. the mixture of rods and rollers with 
girdles, and a few stars and crosses, can scarcely be sufficiently characteristic to establish 
a new species, so much the more as a variation in the spicules of G. clavata in this direc- 
tion has also been found. For the above reasons, consequently, I classify Gersemia 
Damielseni (STUDER) with &G. clavata (DAN.). 
Habitat: 
Newfoundland, Lat. 47? 20' N., Long. 52? 29 W., 164 met., pebbles, mud (Inge- 
gärd and Gladan, "/, 1871), 2 sps. 
Davis Sound, Lat. 63” 41' N., Long. 52? 
dans LST LSp: Hats 0 LENS Hong. 
andrö&ladan, "5 STI) fsps: 
Batfin Bay, Lat. 72? 8 N., Long. 74? 30' W., 30—80 met., hard, rocky bottom (E. 
NILSON, !/, 1874), 1 sp. 
Greenland, Lat. 73” 20 N., Long. 21? 20' W., 70 met., slimy bottom, pebbles (Green- 
landklexp., 2/, 1899), 10 sps; Lat. 73: 32 N.; Long. 24:38 W., Franz Joseph Fiord, 
Cape Weber, 100—110 met., gravel, stone (Greenland exp., ”/; 1899), 2 sps. 
Spitzbergen, Lat. 76” 49' N., Long. 15? 22' E., Horn Sound, 210 met., fine black- 
gray elay, — 2.83? OC. (Spitzb. exp., ”/, 1898), 1 sp.; Stor Fiord, Lat. 78” 32 N., Long. 
19? E. (MALMGREN, ?2/, 1864), many sps.; King Charles Land, Bremer Sound, 100—110 
met., fine clay with stone (Spitzb. exp., !/, 1898), 2 sps.; d:o Lat. 78” 50' N., Long. 27” 
39' E., 20 met., fine red-yellow clay, — 0,2” C. (Spitzb. exp., 1898), 1 sp. 
K. Sv. Vet. Akad. Handl. Band 51. N:o 11. 8 
25' W., 63 met., shells (Ingegärd and Gla- 
53 33 W., 86 met., green clay (Ingegärd 
