26 : ARVID R. MOLANDER, ALCYONACEA. 
Anthelia LAMARCK 1816. 
Diagnosis: The spicules of the polyp all of the same type and size. 
1906, Anthelia, KÖKENTHAL. 
Synopsis. 
A) Large basal planes, the polyps lie at a distance from each other of about 2—4 mm., spicules in tentacles 
arranged close together in the longitudinal direction of the tentacle. A. fallax, BrocH, 1912. 
B) Small basal planes, polyps arranged very close together, spicules in tentacles lying transversely to the 
longitudinal direction of the tentacles; spicules are scarce in the tentacles. 
A. borealis (Kor. and DAN.) 1883. 
Anthelia borealis (Kor. and DAN.), 1883. 
Diagnosis: Small basal planes; polyps placed very close together, spicules in ten- 
tacles placed transversely to the longitudinal direction of the tentacles; spicules in ten- 
tacles are rare. 
1912 a, Anthelia borealis, BRocH. 
Ad 
Fig. 8 a) stolon spicules of Anthelia borealis (Kor. and DAN.) enlarged 125 times. hb) stolon spicules of Anthelia fallax 
BrocH, enlarged 60 times. c) stolon spicules of Clavularia artica SArRs, enlarged 100 times. d) 1) spicules of calyx 
2) spicules of stolon of Clavularia stormi (DAN.), enlarged 150 times. e) 1) spicules of calyx 2) epicules of upper polyp . 
part of Clavularia arctica SARS, enlarged 100 times (after BrocH 1912 a). 
By means of an investigation of KOREN and DANIELSEN'”S original specimen, BRocCH 
determined in 1911 that this species, which by the above-mentioned authors was classed 
among Clavularia, is an Anthelia. My own investigations 
CERT FE of this and following species only confirm the conclu- 
SJ SDs Prata sions of BrocH. The stolons have united to form a basal 
eg re plane. The polyps are placed together, usually over the 
Fig 9. Spicules from polyp of än. "Whole of the basal membrane, are cylindrical in shape, and 
Vä Sf Syr rä ir LE attain a length and breadth of 10 and 2,;—3 mm. respec- 
i |  tively. The tentacles are 3 mm. in length and are furnished 
on each side with 6—10 pinnulae. "The spicules of the basal plane are numerous, 
arranged in no definite order (Fig. 8 a), 0,52 mm. in length, in the shape of spindles 
