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33
af op imod don afrundede Ende, Fig. 2(5; den er tæt besat
med Zooider.
Dorsalfladen har et Midtparti, der er næsten plant,
og to Sideflader, der ere temmelig brede og skraane af
imod Ventralfladen. Saavel Dorsalfladen som
Lateralfladerne ere tiet besatte med Zooider. der danne 8
lancetformige Felter imellem Polyperne.
Terminalpolypen udspringer ved den knopformige Ende
af Rachis paa Dorsalfladen. Hig.26, 1*; den er 25"""lang,
’■>""" tyk; Tentaklerne 30 """lange; strax bagenfor (nedenfor)
denne staar en liden Polyp, 16’"’" lang. 3’""’ tyk;
Tentaklerne 12""" lange, Fig. 26, 1; omtrent 1""" bagenfor denne
lille Polyp sees en Polyp, der er 21""" lang, 3.5"’"’ tyk;
Tentaklerne 18""" lange. Fig. 26. 1. og endelig staar
bagenfor denne 3die Polyp en 4de, der er 26""" lang, 5"""bred;
Tentaklerne 30...... lange, fig. 26, b. Disse 4 Polyper staa
i en lige Ra’kke og danne de centrale Dorsalpolyper.
Heier en Afvigelse, idet her er 4 Centralpolyper, imedens hos
alle de 5 foregaaende kun har været 3. Et Par Mm. til
venstre Side af den 3die Centralpolyp (Endepolypen
eiden 1ste) staar en liden Polyp ganske isoleret; den er
15""" lang, 2""" bred; Tentaklerne lige lange som
Kroppen, Fig. 2(5, 2. og noget foran (ovenfor) men til Siden sees
to Polyper i næsten lige Linie, Fig. 26, 3, 3, af hvilke den
forreste, nærmest Ventralfladen, er 15""" lang, 3""" bred
med 15""" lange Tentakler, og den bagerste er 22""" lang,
4""" bred, Tentaklerne 22""" lange. Udenfor disse iagttages en
lidt krumbøiet Række af 5 Polyper, Fig. 26, 4. 4, 4, 4, 4,
hvoraf de 4 ere lige store, nemlig 35’""’ lange, 7""" brede
med 40""" lange Tentakler, imedens den 5te, der staar
imellem den 1ste og 2den i Rækken, er kun 8’""’ lang,
knap 1""" bred og med omtrent 8""" lange Tentakler. Til
Siden, udenfor denne Række, staa 3 Polyper i en lidt
uregelmæssigt krumbøiet Linie med et Par Mm.s Mellemrum,
Fig. 26, 5, 5, 5; deres Krop er 40"""lang, 7—8""" bred og
Tentaklerne af Kroppens Længde. Disse 11 Polyper kunne
betragtes som dorsal-laterale Polyper og omgives af 4 store,
laterale Polyper, der staa i en Halvkreds, Fig. 26, 6, 6,
6, 6, ere fra 50—65""" lange, 10—125""" brede og med
Tentakler af 55 """s Længde.
Til høire Side af Centralpolyperne i omtrent 2 """s
Afstand staar en Række af 7 Polyper,Fig. 26,7,7, 7, 7, 7, 7, 7,
hvoraf den forreste, nærmest Ventralfladen, er 32""" lang,
6""" bred med 42""" lange Tentakler; den 2den er meget
mindre, Kroppen 20""" lang, 3’""’ bred, Tentaklerne 20"""
lange. Fig. 26, c; de øvrige 5 tiltage i Størrelse, alt
eftersom de stille sig længere bag paa Ryggen, fra 25""" lange,
Den norske Nnrdliftvsexpodition. Danielssen ojr Koren. I’ennatiiliila.
part, but diminishes ih breadth, considerably, in proximity
to the rounded extremity (fig. 26). It is closely beset
with zooids.
The dorsal surface has a middle part which is nearly
flat, and two lateral surfaces which are rather broad, and
slope off towards the ventral surface. Both, the dorsal
surface as well as the lateral surfaces, are closely beset
with zooids, which form 8 lanceolate areas between the
polyps.
The terminal polyp has its orgin beside the
knob-formed extremity of the rachis, on the dorsal surface (fig.
26. 1*). It is 25""" long, and 5’""’ thick, and the tentacles
are 30’""’ long. Immediately behind (below) it. a small
polyp is situated, which measures 16""" in length, and 3 """
in thickness, and it’s tentacles are 12""" long (fig. 26, 1).
About 1""" behind this little polyp, another polyp is
observed. which is 21’"’" long, and 3.5""" thick, and with
tentacles 18""" long (fig. 26, 1) and, finally, behind this
3’’’’ polyp, there is situated a 4th polyp, which measures
26""" in length, and 5""" in breadth, and has tentacles.
30""" long (fig. 26, b). These 4 polyps are arranged in a
straight series, and form the centro-dorsal polyps. There
is, here, a divergence, inasmuch, that there are 4 central
polyps, whilst, in all the 5 preceding specimens, there have
only been 3 central polyps. A couple of millimetres to
the left side of the 3rd central polyp, (the terminal polyp
is the Is’) a small polyp is situated, quite isolated. It
measures 15""" in length, and 2""" in breadth, with
tentacles of the same length as the body; (fig. 26, 2) and
somewhat in front, (above) but, to the side; two polyps
are seen, situated in a nearly straight line (fig. 26, 3, 3),
of which, the anterior one, nearest the ventral surface, is
15""" long and 3""" broad, and the tentacles measure 15"""
in length. The posterior polyp is 22""" long and 4"""
broad, and it’s tentacles are 22""" long. Outside of these,
a somewhat curved series of 5 polyps is observed (fig. 26,
4, 4, 4, 4, 4), of which, four are uniform in size, viz 35 ""i’
long, and 7""" broad, with tentacles 40""" long; whilst the
5th polyp, which is situated between the Is’’ and 2’"’ in
the series, is only 8""" long, and barely I""" broad, and
it’s tentacles are 8 mm long. At the side; outside this series;
3 polyps are situated in a somewhat irregularly curved line,
with a couple of millimetres interval between them (fig. 26.
5, 5, 5). Their body is 40""" long, and 7— 8""" in breadth,
and the tentacles have the same length as the body. These
11 polyps may be. considered to be, dorso-lateral polyps,
and are surrounded by 4 large lateral polyps, which are
placed in a semicircle (fig. 26, 6. 6, 6, 6), and measure
50—65""" in. length, and 10—12""" in breadth, and the
tentacles 55""" in length.
To the right side of the central polyps, at a distance
of about 2""". a series of 7 polyps is situated (fig. 26, 7.
7. 7, 7, 7. 7. 7). of which, the anterior polyp; nearest the
ventral surface; is 32’""’ long, and 6""" broad, with
tentacles 42""" in length. The second polyp is much smaller;
it’s body measures 20 """ in length, and 3""" in breadth, and
the tentacles are 20""" in length (fig. 26, c). The remaining
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