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stilling og bygning peger mod nært slegtskab. Ældre
zoöcier viser tildels temmelig stor lighed med zoöcierne hos
Smittia reticulata. Da jeg for tiden ikke kan afgjøre, om
Stimpson og Sars’s arter er identiske, har jeg opført Sars’s
navn palmat a.
I sin beskrivelse gjorde M. Sars opmerksom paa de
bøielige rør af kitinagtig beskaffenhed, som var fæstede til
zoariet.
Smitt (24, IV, p. 60), paapegede, at disse rør eller
rodtraade (tubular fibres) udgik fra selve zoöcierne og at
de nærmede sig hinanden og tilslut voksede sammen til et
knippe mod koloniens proximale ende. Ved hjelp af dette
knippe var kolonierne fæstede til fremmede legemer paa
bunden, saasom ormrør og lignende. Vigolius (31, p. 1G)
skriver: ,.They (the branches of the colony) are connected
by numerous tubular fibres, originating on both sides of
the zoarium from membranous rather pear-shaped
envelopes, which cover certain zooecia (fig. 2)". Disse tuber
danner merkelig nok et slags forlængelse nedad af zoöcierne,
og deres betydning for koloniens liv, maa udentvivl være
at fungere som et støtteapparat, som holder det skjøre
zoarium sammen, selv om det brækkes af paa forskjellige
steder.
cularia indicate a close relationship. Older zoæcia
sometimes bear considerable resemblance to the zooecia in
Smittia reticulata. As 1 cannot at present decide whether
Stimpson’s and Sars’s species are identical, I have put down
Sars’s name, pahnata.
M. Sars, in his description, drew attention to the
flexible tubes of a chitinous consistency, that wTere attached
to the zoarium.
Smitt (24, IV, p. 8U) pointed out that these tubes
or root-fibres (tubular fibres) issued from the zoæcia
themselves, and that they approached one another, and at last
grew together into a bunch towards the proximal end of
the colony. By means of this bunch, the colonies were
attached to foreign bodies at the bottom, such as
worm-casts. and the like. Vigelius (31, p. 16) writes: "They
[the branches of the colony] are connected by numerous
tubular fibres, originating on both sides of the zoarium
from membranous, rather pear-shaped envelopes, which
cover certain zooecia (fig. 2)". These tubes, strange to say,
form a kind of prolongation downwards (if the zoæcia, and
their significance to the existence of the colony must
without doubt be to act as a support to keep the brittle
zoarium together, even if it be broken in several places.
Smittia reticulata, Mac Gill.
Eschar ell a legentilii, Smitt (24, IV), p. 10, 81, tab. 24,
fig. 47—52.
Smittia. reticulata. Hincks (8), p. 346, tab. 48, fig. 1—5.
Findested. St. 290.
Arten er funden i Karahavet (Levinsen), ved Novaja
Senilja (Smitt), Jan Mayen (Lorenz) og opføres ogsaa for
Grønland. Men den er ingen arkticus i streng forstand,
den forekommer saaledes ved Englands og Frankrigs kyster,
i Adriaterhavet, ja endog ved Nyzealand og
Falklandsøerne.
Smittia reticulata, MacGill.
Escharella legentilii, Smitt (24, IV), pp. 10, 81; Pl. XXIV,
figs. 47—52.
Smittia reticulata, Hincks (8), p. 346; Pl. XLVIII, figs.
1—5.
Occurrence. Station 290.
The species has been found in the Kara Sea
(Levinsen), at Novaja Senilja (Smitt), Jan Mayen (Lorenz),
and is also recorded from Greenland. But it is not strictly
speaking an arctic species, as it occurs on the coasts of
England and Fiance, in the Adriatic, and even off
New-Zealand and the Falkland Isles.
Smittia trispinosa. Johnst.
Tab. I, fig. ’J.
Escharella jacotini, Smitt (24, IV), p. 11. 86, tab. 24, fig.
53—57.
Smittia trispinosa, Hincks (8), p. 353, tab. 49, fig. 1 — 8.
„ „ var. arborea, Levinsen (15), p. 16, tab.
27, fig. 7, 8.
Findesteder. St. 273, 326. 357.
Paa de nævnte steder forekom kun den af Levinsen
opstillede eiendommelige form arborea. Denne varietet er
tagen foruden af Dimphna- og Nordhavsekspeditionen ogsaa
af Kückenthal og Walter ved Spitsbergen (Bidenkap). Jeg
tog den vinteren 1899 i Porsangerfjorden, hvormed den
Smittia trispinosa, Johnst.
PI. 1, fig. 9.
Escharella jacotini, Smitt (24, IV), pp. 11,86; Pl. XXIV,
figs. 53—57.
Smittia trispinosa, Hincks (8), p. 353; Pl. XLIX, figs.
1—8.
„ „ var. arborea, Levinsen (15), p. 16; PI.
XXVII, figs. 7, 8.
Occurrence. St. 273, 326, 357.
Levinsen’s peculiar form arborea was the only one
that occurred at the above places. This variety has not
only been found by the Dijmphna and North Atlantic
Expeditions, but also by Kückenthal and Walter at
Spitsbergen (Bidenkap). I found it in the early part of 1899
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