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derkaritéii af denne Finger rindes en temmelig lav
lamelle-formig Udvidning, der fortil, strax indenfor Fingrenes Spids,
danner et vinkelformigt Fremspring. Derimod er
Inderkanten af den bevægelige Finger ganske glat.
Nedenfor Saxlemmernes Insertion bemærkes (se Fig.
3 a) hos alle de undersøgte Exemplarer til hver Side et
lidet knudeformigt Fremspring. Da disse Fremspring netop
er beliggende der, hvor hos andre Pycnogönideer Følerne
pleier at være fæstede, er der al Grund til at anse dem
for et ubetydeligt Rudiment af disse Lemmer. Hos ingen
af de 2 øvrige Arter har jeg kunnet opdage det mindste
Spor af disse Knuder.
De falske Fødder forholder sig, som hos de 2 øvrige
Arter, noget forskjelligt hos de 2 Kjøn, idet de hos
Hannen (Fig. 3 d) er betydelig længere end hos Hunnen (Fig.
o c), hvad der især skyldes den stærkere Udvikling af 5te
Led, ved hvis Ende den sædvanlige børstebesatte Lap
forefindes. De ydre Led stemmer, i Henseende til det
indbyrdes Længdeforhold, temmelig nøie overens med samme
hos foregaaende Art. Derimod viser de laterale Torner
et meget afvigende Udseende. De er nemlig (se Fig. 3 f)
for det. første forholdsvis meget større og tykkere, bredt
lancetformige, og dernæst mangler de ganske Saugtakker,
idet Randen kun viser et uregelmæssigt bølgeformige
Forlob.
Gangfødderne (se Fig. 3) viser en temmelig robust
Bygning, men er betydelig stærkere forlængede end hos den
typiske Art. næsten 4 Gange længere end Legemet, og
adskiller sig ogsaa i Detaillerne meget bestemt fra samme
hos begge de øvrige Arter. De er overalt tæt besatte med
meget smaa, næsten mikroskopiske Haar, der giver dem et
tint loddent Udseende. Hoftepartiet er her forholdsvis
kort, neppe længere end Bredden mellem de midterste
Side-fortsatser, og Forskjellen i Længde mellem dets 3 Led
mindre end hos de 2 øvrige Arter. Laarleddet er derimod
meget stærkt forlænget, omtrent 21/’s, Gang længere end
Hoftepartiet, og er hos Hunnen, som sædvanlig, tykkere
end hos Hannen. 1ste Lægled er kjendelig kortere end
Laarleddet, medens 2det Lægled, som sædvanlig, er det
længste af alle. Tarsalleddet (se Fig. 3 g) er forholdsvis
betydelig større end hos de 2 foregaaende Arter, længere
end bredt og successivt noget udvidet mod Enden.
Derimod er Fodleddet forholdsvis mindre kraftigt udviklet,
neppe niere end dobbelt saa langt som Tarsalleddet, og
noget afsmalnende mod Enden. Det er i Inderkanten
bevæbnet med circa 5 større Torner, hvoraf 1 er fæstet
omtrent i Midten, de øvrige nærmere Basis. Endekloen er
stærkt forlænget, vel saa lang som Fodleddet, koniskt
tilspidset og mindre stærkt krummet end bos de 2 øvrige
Arter.
Farven er i levende Tilstand omtrent som hos C.
mal-leolata, nemlig ensformig hvidgul.
Forekomst og Udbredning. Ved vore Kyster har
jeg kun observeret nærværende Art paa et eneste Punkt,
nemlig ved Vadsø, hvor jeg for mange Aar siden tog et
a distinct although slight incurvation. On the inner edge
of this finger a rather low lamelliform expansion occurs,
which, anteriorly, just within the point of the fingers,
constitutes an angular projection. The inner edge of the
mobile finger is, on the contrary, quite smooth.
Below the insertion of the chelifori was found (see
fig. o a), in all tile specimens examined, on either side,
a small tuberculifonn projection. Those projections being
located just where the palpi in other Pycnogonidea occur,
there is every reason to regard them as a trifling rudiment
of these limbs. In neither of the 2 other species have I
succeeded in discovering the slightest trace of the said
projections.
The false legs deviate somewhat, as in both the other
species, in the 2 sexes, those of the male (fig. 3 d) being
considerably longer than those of the female (fig. 3 c),
mainly arising from the greater development of the 5th
joint, at whose extremity the usual setiferous lobe occurs.
The outer joints agree, as to their mutual relative
proportions in length, rather closely with those of the preceding
species. On the other hand, the lateral spines exhibit a
very different appearance. They are (see fig. 3 f), in the first
place, relatively much larger and thicker, broadly lanceolate,
and, in the second place, they are totally destitute ot
sawteeth, the edge simply exhibiting an irregular, undulatorv line.
The ambulatory legs (see fig. 3) exhibit a rather
robust structure but are much more elongate than in the
typical species, attaining well-nigh 4 times the length of
the body, differing, too. in several details, very decidedly,
from those in both the other forms. They are everywhere
densely beset with very minute, almost microscopic hairs,
which gives them a delicate downy appearance. The coxal
part in this animal is relatively short, hardly longer than
the breadth between the mesial lateral processes, and the
difference in length between its 3 joints is less than in the
2 other species. The femoral joint, on the other hand, is
very much elongated, about two and a half times longer
than the coxal part, and, as usual, thicker in the female
than in the male. The 1st tibial joint is appreciably
shorter than the femoral one, whilst the 2nd tibial joint
is, as usual, the longest of all. The tarsal joint (see fig.
3 g) is, relatively, a good deal larger than in the 2 preceding
species, and somewhat gradually expanded towards the end.
On the other hand, the propodal joint is relatively less
powerfully developed, hardly more than twice as long as the
tarsal joint, and tapers a little towards the extremity. It
is armed on the inner edge with about 5 largish spines,
one of which is affixed near the middle, the others nearer
the base. The terminal claw is much elongated, rather longer
than the length of the propodal joint, conically acuminated,
mid less sharply curved than in the 2 other species.
The colour is, in the live state, about as in C.
malleolata. viz., a uniform wliity yellow.
Occurrence and Distribution. On the coasts of
Norway, I have observed the present species in but one
locality, viz. at Vadsii. where, many years ago, I took a soli-
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