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(»9
ut’ (lette Helte sees lidt paaskraasgaaende Zooiderækker,
Fig. 3, a, 2—3 i hver Række, hvilke støde til de imellem
Cellerækkerne spredte Zooider! Fig. 4, a.
Cellernes ydre Væg er rigt udstyret med større og
mindre, trekantede Spilder, hvoraf de Heste have en
tegl-stensrod Farve. Ligesom Spiklerne ere forskjellige i
Størrelse, saaledes ere de ogsaa noget forskjellige i Fonn. Der
er i Regelen 3 Størrelser; de mindste ere 0,142""" lange,
11,016™"’ brede; de mellemste ere 0,268""" lange, 0,018"""
luvde, og de største ere 0,893""" lange, 0,045""" brede, Fig.
li. Med Hensyn til Formen, saa vexler den imellem
Spikier med mere eller mindre tilspidsede Ender og saadanne,
der have afstumpede, takkede Ender. Spiklerne ligge tæt
paa hinanden og ere ordnede som paa Protoptilum carmatum.
Cellernes indre Væg, der er fastvoxet, er saagodtsom uden
Spikier.
Zooiderne have en aflang Mund. ere dækkede [af flere
Bundter Spikler, som ere trekantede, fordetmeste
teglstensrode med tilspidsede Ender; de ere i rigere Mængde
tilstede end paa nogen af de foregaaende 3 Arter, og ere
meget lange, omtrent som de længste paa Cellerne, hvorved
Hachis faar et paa Spikler meget rigt Udseende.
1 det føromtalte, nøgne Belte langs Ventralfladen
ligge Spiklerne enkeltvis, adskilte fra hinanden og i afbrudte
Ijjengderækker, Fig. 7. De ere trekantede, lidt indknebne
paa Midten, mod afstumpede, takkede Ender; de ere
11.303""" lange, 0,018""" brede i Enderne, men 0,016""" brede
paa Midten, Fig. 7.
Polyperne ere cylindriske. Kroppen er omtrent 2"""
lang, bleg rosenrød, med 3 Gange saalange Tentakler, der
ere lidt blegere end Kroppen og have paa Midten af den
aborale Flade ell Række rødlige Spikler, af Fonn og
Stor-relse lig dem paa de tidligere beskrevne Arter.
Sareosomaet er tyndt, halvt gjennemsigtigt og
spikel-rigt overalt, kun ikke hvor den indre Cellevæg er fastvoxon.
Axen er rund, ender foroven i en liden Konus, der
er blottet for Sarcosoma!; nedentil ender den haarfint i en
Anse. Hvorvidt Axen strækker sig lige ned i Bunden af
den bulbøse Del, eller den bøier af længere oppe, kan ikke
afgjøres, da hele Stilkens Sarcosoma var afrevet ved Skraben.
Farven.
Rachis er toglsteiisrod, stærkt glindsende af
Spikel-rigdonimen. Cellerne ere lidt blegere og Polyperne med
deres Tentakler ere endnu blegere.
Findested.
Station 9.
undulating line. On the sides of this stripe, slightly diagonal
series of zooids are seen (tig. 3, a), 2—3 in each series;
these abut upon the zooids dispersed between the cellular
series (fig. 4, a).
The exterior wall of the cells is richly supplied with
larger and smaller triangular spicules, of which, the greater
number have a brick-red colour. Just, as the spicules are
variable in size, are they, also, somewhat variable in form.
There are usually 3 sizes of these, the smallest measure
0.142""" long, and 0.016""" broad: the median measure,
0.268""" long, and 0.018""" broad; and the largest measure,
0.893""" long, and 0.045"’"’ broad (fig. 6). With respect to
the form of the spicules; this varies between spiculæ[with
more or less acuminate extremities, and spiculæ with
blunted aculeated extremities. The spicules lie close upon
each other, and are arranged in same manner as in
Protoptilum carinatmn. The interior wall of the cells is
concreted, and is almost devoid of spicules.
The zooids have an oblong, oral aperture, and are
covered by several bundles of spiculæ of triangular shape;
most of which have a brick-red colour, and posess
acuminated extremities; these are more numerously present
than in any of the 3 preceding species, and they are very
long, almost as long as. the longest pertaining to the cells;
and they impart to the rachis. a rich appearance of
spic-ular wealth.
In the unoccupied stripe previously spoken of, the
spicules are placed, singly, along the ventral surface,
separated by intervals from each other, and in interrupted
longitudinal series (fig. 7). They are triangular, somewhat
constricted at the middle, and have blunted aculeated
extremities; they measure 0.303"’"’ long, 0.018""" broad at
the extremities, but 0.016""" broad at the middle (fig. 7).
The polyps are cylindrical. Their body is about
2""" long, and is pale rosy-red in colour; whilst, the tentacles
are 3 times the length of the body, and are a little paler
in colour than ii; in the middle of the aboral surface, there
is a series of reddish spicules, in form and size, like those
of the previously described species.
The sarcosoma is thin, semitranslucent, and,
everywhere, rich in spiculæ. excepting, only, the point where
the wall of the cell is concreted.
The axis is round, and terminates above, in a small
cone, devoid ol’ sarcosoma. It terminates below, fine as a
hair, in a hook. Whether the axis extends right down to
the. bottom of the bulbous part, or, whether it curves off
further up, cannot be decided, because, the sarcosoma
of the whole stem was torn off by the dredge.
Colour.
The rachis is brick-red, and strongly resplendent owing to
it’s wealth of spicule. The cells are a little paler in colour, than
the rachis; and the polyps, with their tentacles, are still paler.
Habitat.
Station No. 9.
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