øvrige Del af Tentakelen tilligemed de temmelig langt tra 
hinanden staaende Pinnuler ere rige paa Kalkspikler, der 
ere af Form som de paa Kroppen, 0,123”” lange, 0,012”m 
brede. Mundskiven er hvælvet og i Midten er den aflange 
Mundaabning. Ogsaa Mundskiven er forsynet med lignende 
Spikler som de paa Kroppen. 
Zooiderne ere krandsformigt omsluttede af Spikler, 
der rage udover Zooidens Mnndaabning, ere trekantede, 
have takkede Ender og ere 0,300”” lange, 0,024”” brede. 
Sarcosomaet er paa Rachis meget tyndt, halvt gjen- 
nemsigtigt, og her ligge Spiklerne næsten bundtevis paa 
hverandre; de have samme Form som de tidligere omtalte, 
ere fra 0,310—0,357”” lange og fra 0,012—0,018”” brede, 
Fig. 19. I Stilken er Sarcosomaet tykkere, opakt, og Spik- 
lerne ligge her meget mere kompakte end i Rachis; de 
ere fra 0,160—0,200”” lange, 0,018—0,024”” brede, ere 
trekantede og ikke alene takkede i Enderne, men Tak- 
kerne strække sig langt ned over Kanterne, Fig. 20. 
, 
Kalkaxen er rund, strækker sig lige ned i Bunden af 
Endeblæren, hvor 
og ender haarfint. 
den gjør en Bøining, danner en Anse 
Farven. 
Rachis er svag brungul, spillende noget i det Vio- 
lette. Stilken er næsten gulhvid. Polyperne bleg violette. 
Efter nogen Tids Opbevaring i Spiritus forsvinder 
Farven næsten ganske, saa at Exemplarerne ere saagodt- 
som hvide. | 
Findested. 
Station 9. Et Exemplar. 
Af denne Søfjær fandt vi for omtrent 12 Aar siden 
i Korsfjorden (Haakonsund, 27 Km. fra Bergen) et ud- 
voxet og et ganske ungt Exemplar. Den dybe Bugfure til- 
trak sig vor Opmærksomhed, men da vi antog dem for 
Kophobelemnon stelliferum, bleve de ikke nærmere under- 
søgte. Ved nu at underkaste disse Exemplarer en nøiagtig 
(ranskning viser det sig, at de ere forskjellige fra Koph. 
stelliferum og falde sammen med den nu beskrevne Koph. 
abyssorum. Dennes brede og korte Raehis, Stilkens bety- 
delige Længde i Forhold til Rachis og dens jævnt tilta- 
gende Tykkelse opimod denne, 
Rygfuren, de faa, 1 3 Rækker 
Størrelse ere Karakterer, der 
ikke alene fra Koph. stelliferum 
kjendte Arter af denne Slægt. 
den dybe Bugfure ligesom 
stillede Polyper og deres 
adskille Koph. abyssorum 
men ogsaa fra de øvrige 
Kophobelemnon abyssorum har en mere udpræget bi- 
lateral Symetri end nogen af de bekjendte Kophobelemnider, 
— bedst iagttages dette paa det unge Exemplar, hvor der 
ogsaa findes en Endepolyp. 
12 
0.089" broad, and are aculeated at the extremities. The 
remaining part of the tentacle, and also, the tolerably wide- 
apart pinules, are rich in calcareous spiculæ, of similar 
form to those of the body, and measuring 0.123”” in length, 
and 0.0127” jn breadth. The oral disk is arched, and the 
oblong oral aperture is situated im its middle. The oral disk, 
is, also, furnished with similar spiculæ to those of the body. 
The zooids are enclosed by wreaths of spiculæ, 
which project beyond the oral aperture of the zooids, and 
are triangular in shape, with aculeated extremities; and 
measure 0.300”" long, and 0.024” broad. 
The sarcosoma upon the rachis is very thin, and 
semi-translucent, and in this situation, the spicule lie on 
each other, almost in bundles. They have the same form 
as those already spoken of, and measure from 0.310— 
0.367” long, and from, 0.012—0.018”” broad (fig. 19). 
The sarcosoma is thicker in the stem, and is opaque; and 
the 
and 
the spiculæ, here, are much more compact than in 
rachis ; they measure from 0.160—0.200”” in length, 
0.018—0.0247” in breadth; are triangular in form, and 
not only are they aculeated at the extremities, but the ac- 
the edges (fig. 20). 
round, and extends right down 
uleæ extend far down along 
The calearequs axis is 
to the bottom of the terminal vesicle, at which point, it 
makes a curvature; forms a hook; and terminates fine as 
a hair. | 
Colour. 
The rachis is light brown-yellow, tending somewhat 
to violet. The stem is nearly yellow-white. The polyps 
are pale-violet. 
After being preserved in alcohol for some time, the 
colour almost quite disappears, so that the specimens be- 
come nearly white. 
Habitat. 
Station No. 9, one specimen. 
About 12 years ago; we found in the Korsfjord, 
(Haakonsund 27 Km. from Bergen), one full grown, and 
one very The 
ventral furrow attracted our attention, but, as we supposed 
it to be Kophobelemnon stelliferum, it was not particularly 
On now, however, subjecting these specimens to 
young specimen of this sea-pen. deep 
examined. 
a minute examination, it is evident, that they are different 
from Koph. stelliferwm and that they harmonise with the 
Koph. abyssorum now described. The latter’s broad and 
short rachis; the great length of the stem in relation » 
to the rachis; and the uniformly, increasing thickness of 
the stem towards the rachis; the deep ventral furrow; also, 
the dorsal furrow; the few polyps placed in 3 series, and 
their size; are characteristics, which distinguish Koph. ab- 
yssorum, not only from Koph. stelliferwn, but, also, from 
the other known species of this genus. 
Kophobelemnon abyssorum has a more marked bilat- 
eral symmetry than any of the known Kophobelemnonide. 
This is best seen in the young specimen; where, also, a 
terminal polyp is found. 
