KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 51. N:o |l. Jil 
Gladan, 2/, 1871), 2 sps.; Lat. 68” 14 N., Long. 54? 7 W., 235 met., sand mixed with 
clay, stones (Ingegärd and Gladan, ?/, 1871), 1 sp.; Lat. 69” 16' N., Long. 58 8 W. 
329 met., clay with stones (Ingegärd and Gladan, ?/, 1871), 2 sps.; Lat. 72” 20' N., Long. 
59” 39 W:, 389 met., clay with stones (Ingegärd and Gladan, :/, 1871), 2 sps.; Lat. 
72” 32! N., Long. 58? 5' W., 209 met., stones (Ingegärd and Gladan, "/, 1871), 1 sp.; Lat. 
75” 26 N., Long. 67” 27! W., 468 met. hard clay with stones (Sofia exp., ””/, 1883), 7 sps. 
Norway, Finmark, (S. LovÉN), 1 sp. 
Further Distribution: 
Newfoundland, 1267 met. (STUDER, 1901), Norwegian Sea, 761—1203 met. (DANIEL- 
SEN, 1887), Norwegian Sea, Faroe Channel, 355 met. (THOMPSON, 1910), Barents Sea, 
269—329 met. (DANIELSEN, 1887), Norway, west coast, 72—92 met. (KOREN and Da- 
NIELSEN. 1883). 
Eunephthya flavescens var. hyalina DAN., 1887. 
The trunk compressed on two sides. The branches extend in the same plain. ”PThe 
spicules are more closely packed in the anthocodiae and branch bark than within the 
main species, and the spicules have slightly longer and slender thorns. In the branch and 
trunk bark there exist somewhat more numerously longer clubs and spindles. (PI. II. 
fig. 15.) 
1907, FEunephthya hyalina, KÖKENTHAL. 
KUKENTHAL classifies, although with hesitation, Punephthya hyalina (DAN.) as 
a distinct species. He says: »Auch diese Form gehört in die Nähe von &. glomerata (VERR.), 
so abweichend sie auch auf den ersten Blick gebaut zu sein scheint. Der Aufbau ist 
zwar sehr locker und in eine Ebene erfolgt aber doch im wesentlichen der gleiche. Die 
Durchsichtigkeit der Kolonie ist kein entscheidendes Merkmal, sie lässt sich gelegentlich 
auch innerhalb anderen Arten beobachten. Da aber in der Bewehrung gewisse Abwei- 
chungen vorkommen, will ich die Form als eigene Art vorläufig beibehalten. » 
The only characteristic, which according to the mentioned writer can be relied upon 
to differentiate the species is the armature. If, however, we distinguish between two 
species, i. e. Z. glomerata and E. flavescens, as I have done, Z. hyalina comes very close 
to E. flavescens, and the difference in the shape and size of the spicules is insignificant. 
Ewnephthya flavescens Euwnephthya flavescens 
var. hyalina 
engsohr of anthocodla ; « . se. « « ses sc cs 4-—--6 mm.! 4---5 mm. 
» » spicules in anthoöcodia . . ..... 0.10—0.30 mm.? 0.12—-0.30 mm. 
» » » in branch bark: spindles, 
(OTO AR AR 0.10-—0.20 mm.? 0.13—0.20 mm. 
rollers, crosses, stars . . 0.066—0.11 mm.! 0.06—0.12 mm. 
1 DANIELSEN gives 6—8 mm., but KUKENTHAL, 4—5 mm. DANIELSEN'Ss account possibly refers to an inve- 
stigation of the anthocodiae in fresh condition. I have found 4—535 mm. on the type specimen of DANIELSEN. On 
specimens in the Swedish collections I found 4—6 mm. 
? DANIELSEN gives 0.39 mm. as greatest length.| I have not found these lengths of spicules on the 
Z > SUR (JSOIS SE » » DANIELSEN'S type-specimens, nor on the other specimens 
2 » SIE | investigated. 
