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91
(Fig. 2 a) betydelig stærkere forlængede end hos Hunnen,
omtrent længere end Legemet og har som sædvanlig
5te Led længst. Endedelen er kortere end dette Led og
har Randtornerne (Fig. 2 f) af bred laneetdannet Fonn,
med en regelmæssig Rad af stærke Saugtakker i hver
Kant.
Gangfodderné er (se Fig. 2) ualmindelig spinkle og
forlængede, næsten 5 Gange længere end Legemet, og
besatte med spredte, temmelig lange Haar. Af Leddene er
som sædvanlig 2det Lægled det længste og ganske
overordentlig tyndt. Det terminal Afsnit (Fig. 2 g) er neppe
’Ii saa langt og har Tarsalleddet kjendelig længere end
Fodleddet, begge af smal lineær Fonn og besatte med
spredte Smaaborster. Endekloen er neppe mere end halvt
saa lang som Fodleddet, men temmelig stærk og tydeligt
leformigt tilskjærpet. Bikløerne udmærker sig i hoi Grad
ved sin betydelige Størrelse, idet de er s/3 saa lange som
selve Kloen.
De ydre Ægmasser forefindes kun i et enkelt Par
og sædvanligvis fæstede omkring de falske Fodders 5te
Led. De er (se Fig. 2 a) forholdsvis smaa og af
kugledannet Form, hvorimod de i dem indeholdte Æg er af
ganske ualmindelig Størrelse.
Forekomst. Jeg har fundet denne Art ikke saa
sjelden langs vor Vestkyst, og nordlig til Lofoten, paa et
Dyb af 4U— 100 F. Under Nordbavs-Expeditionen toges
den enkeltvis paa 2 Stationer, den ene (Ståt. 262) Øst af
Vardø, den anden (Ståt. 290) omtrent midtveis mellem
Finmarken og Beeren Eiland; Dybden fra 148 til 191 F.
Udbredning. Arten er udbredt til Nordamerikas
Østkyst, hvor den er taget i Golfen ved Maine paa 85—
115 F. D. (Wilson). At dømme efter denne Udbredning
i Forbindelse med dens Forekomst i Havet udenfor
Finmarken, maa den utvivlsomt ansees for en oprindelig
arktisk Form.
male (fig. 2 a), they are considerably more elongated than
in the female, about one-fourth longer than the body, and
have, as usual, the 5th joint longest. The terminal part
is shorter than that joint, with the marginal spines (fig.
2 f), broad-lanceolate in form and bearing a regular series
of strong saw-teeth on either edge.
The ambulatory legs (see fig. 2) are uncommonly
slender and elongated, almost 5 times longer than the body,
and beset with scattered, rather long hairs. Of the
joints, the 2nd tibial joint is, as usual, the longest, and
quite remarkably slender. The terminal section (fig. 2 g)
is hardly one-fourth as long, and has the tarsal joint
appreciably longer than the propodal joint, both
narrow-linear in form and beset with scattered minute setæ. The
terminal claw is hardly more than half as long as the
propodal joint, but rather powerful and distinctly
falci-formly sharpened. The auxiliary claws prominently
distinguish themselves by their considerable size, as they are
two-thirds as long as the claw itself.
The outer egg-masses occur as a single pair only,
and, in general, affixed round the 5th joint of the false
legs. They are relatively small (se fig. 2 a) and globular
in form, whereas the ova they contain are of quite a
remarkable size.
Occurrence. I have not infrequently met with this
species along the West Coast of Norway, and as far north
as Lofoten, at a depth of from 40 to 100 fathoms. On
the North-Atlantic Expedition solitary specimens were
taken at 2 Stations, the one (Ståt. 262) east of Vardö,
the other (Ståt. 290) about midway between^ Finmark and
Beeren Eiland; depth from 148 to 191 fathoms.
Distribution. The species ranges as far as the east
coast of North America, where it has been found in the
Gulf of Maine at a depth of 85—115 fathoms (Wilson).
To judge from this distribution, along with its occurrence
off the coast of Finmark, the animal must doubtless be
regarded as originally an Arctic form.
28. Nymphon micronyx, G O. Sars.
(Pl. IX, Fig. 3, a-g).
Nymphon micronyx, G. O. Sars, Pycnogonidea borealia &
arctica, No. 28.
Artscharacter. Legemet af forholdsvis undersætsig
Form. Hovedsegmentet neppe længere end de 2 følgende
Segmenter tilsammen; Halsen forholdsvis kort og tyk;
Pandedelen kun lidet udvidet. Øieknuden meget lav.
afrundet. Snabelen kortere end Hovedsegmentet, cylindrisk.
Saxlemmerne forholdsvis smaa, Haanden neppe saa lang
som Skaftet, af aflang oval Form, Fingrene kortere end
Palmen. Følerne korte og tykke, tæt haarede, 2det og
3die Led af ens Størrelse, sidste noget længere end
næstsidste ; begge tilsammen saa lange som 3die. De falske
Fodder hos Hannen noget længere end Legemet. Endedelen
28. Nymphon micronyx. G. O. Sars.
(PI. IX, fig. 3, a—g).
Nymphon micronyx, G. O. Sars, Pycnogonidea borealia &
arctica, No. 28.
Specific Characters. Body comparatively thickset in
form. Cephalic segment hardly longer than the 2
succeeding segments taken together; neck relatively short and
thick; frontal part but little expanded. Oculiferous tubercle
very low, rounded. Proboscis shorter than the cephalic
segment, cylindric. Chelifori comparatively small, hand hardly
as long as the scape, oblongo-oval in form, fingers shorter
than the palm. Palpi short and thick, densely hairy, 2nd and
3rd joints of equal size, last joint somewhat longer than the
penultimate one; both taken together as long as the 3rd. False
legs in the male somewat longer than the body, terminal part
12*
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