- Project Runeberg -  Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 6. Bind /
27

(1880-1901)
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udgaar nøiagtig fra Midten af de tilsvarende Segmenter.
Hovedsegmentet, der omtrent er saa langt som de 3
fol-gende Segmenter tilsammen, er i sit bagre Parti temmelig
bredt, men indknibes umiddelbart foran de forreste
Side-fortsatser pludselig meget stærkt og skyder frem som en
smal cylindrisk Hals ud over Snabelens Basis. Til Enden
af dette cylindriske Parti af Hovedsegmentet er
Saxlemmerne fæstede, og umiddelbart bag dem hæver Øieknuden
sig i Veiret (se Fig. 2 b). Halsesegmentet (Fig. 2 1) er
ualmindelig stærkt forlænget, omtrent saa langt som de 2
foregaaende Segmenter tilsammen, og horizontalt stillet (se
Fig. 2 b). Det er af næsten cylindrisk Fonn og stumpt
tilspidset i Enden, med en kort Børste til hver Side nær
Spidsen.

Øieknuden (Fig. 2 c) er særdeles høi, cylindrisk, og
viser sig, seet forfra eller bagfra, at have til hver Side
nær Spidsen en fremspringende Vinkel. De 4 Corneæ
ligger nærmere Spidsen end Basis af Øieknuden, dog ikke
lige liøit. idet de 2 forreste og betydelig større Corneæ
ligger lavere end de 2 bagerste (se Fig. 2 b).

Snabelen udgaar her (se Fig. 2 b) tydeligt fra
Hoved-segmentets ventrale Side og er noget skraat nedadrettet.
Den er forholdsvis kort, neppe mere end ’/3 saa lang som
Legemet og af simpel cylindrisk Form, med Enden stumpt
afkuttet.

Saxlemmerne (Fig. 2 d). der fra Enden af
Hovedsegmentet ligesom hænger ud over Snabelen, er af temmelig
svag Bygning, omtrent af Snabelens Længde og besat med
fine Haar. Skaftet er smalt cylindriskt og kun lidet
fortykket i Enden. Saxen er neppe halvt saa lang og meget
smal, med Fingrene omtrent af Palmens Længde og begge
gaaende ud i en sylskarp Spids. Den bevægelige Finger,
som her ligger oventil, er noget længere og mere buet end
den ubevægelige, der næsten er ganske lige.

Af Folere er der ikke det mindste Spor at opdage.

De falske Fødder hos Hannen (se Fig. 2 b, 2 f) er
temmelig spinkle og, lige udstrakte, næsten af Legemets
Længde. De bestaar af 6 vel begrændsede Led, hvoraf
det 3die er særdeles stærkt forlænget og tyndt, selv
længere end begge de foregaaende Led tilsammen; det danner
med 2det Led en stærk knæformig Boining og viser i
nogen Afstand fra Basis en utydelig Indknibning, der ved
første Øiekast let kan tages for en virkelig Leddeling. De
3 sidste Led aftager hurtigt i Størrelse og er tilsammen
kortere end 3die; 4de Led gaar i Flugt med 3die, medens
de 2 yderste Led er med en stærk albueformig Boining
slaaede op mod 4de. Begge disse sidste Led, men navnlig
det overordentlig lille, ovale Endeled, er besat med en hel
Del tilbagebøi ede stive Borster, medens den øvrige Del af
af disse Lemmer kun er forsynet med simple korte Haar.

Gangfødderne (se Fig. 2) er ikke af synderlig
betydelig Længde, neppe mere end dobbelt saa lange som
Legemet. men af temmelig spinkel Form og besatte med spredte

the 2 mesial pairs issue exactly from the middle of the
corresponding segments. The cephalic segment, which is about
as long as the 3 following segments taken together, is rather
broad ill its posterior part, but immediately anterior to
the foremost of the lateral processes is abruptly constricted,
and projects as a narrow cylindrical neck over the base
of the proboscis. To the extremity of this cylindrical part
of the cephalic segment the chelifori are attached, and
immediately behind them rises the oculiferous tubercle (see fig.
2 b). The caudal segment (fig. 21) is remarkably elongate,
about as long as the 2 preceding segments taken together,
and horizontally placed (see fig. 2 b). It is well-nigh
cylin-dric in form and obtusely acuminated at the extremity,
with a short bristle on each side near the point.

The oculiferous tubercle (fig. 2 c) is exceedingly
protuberant, cylindric, and is seen to have, when viewed
anteriorly or posteriorly, on each side, near the point, a
projecting angle. The 4 corneæ lie nearer the point than the
base of the oculiferous tubercle, although not on the same«
level, as the 2 foremost and considerably larger corneæ are
placed lower than the 2 hindmost (see fig. 2 b).

The proboscis in this animal (see fig. 2 b) is distinctly
seen to issue from the ventral side of the cephalic segment,
and is directed somewhat obliquely downward. It is
comparatively short, hardly more than one-third as long as the
body, and of a plain, cylindrical form, with the extremity
obtusely truncated.

The chelifori (fig. 2 d), which hang out, as it were,
over the proboscis from the extremity of the cephalic
segment, are of rather feeble structure, about as long as the
proboscis, and beset with fine hairs. The scape is narrow
cylindric, and but slightly tumificated at the extremity.
The chela measures hardly half the length, is very
narrow, with the fingers about as long as the palm, and both
running to an awl-shaped point. The mobile finger, placed
in this animal above, is somewhat longer and more curved
than the immobile one, which is almost quite straight.

Of palpi not a trace can be detected.

The false legs in the male (see fig. 2 b, 2 f) are
rather slender, and, when fully extended, measure well-nigh
the length of the body. They consist 6 well-defined joints,
of which the 3rd is especially elongated and thin, longer
even than both the preceding joints taken together; it forms
along with the 2nd joint a strong geniculate bend, and,
exhibits at some distance from the base an indistinct
constriction, at the first glance easily mistaken for a true
articulation. The 3 last joints diminish rapidly in size, and,
taken together, are shorter than the 3rd; the 4tli joint
extends in line with the 3rd. whereas the 2 outermost
joints are, by a strong, elbow-shaped bend folded lip
against the 4th. Both the latter joints, but ill particular
the exceedingly small, oval, terminal joint, are beset with a
number of stiff, recurved bristles, while the remaining part
of the limbs is furnished merely with plain, short hairs.

The ambulatory legs (see fig. 2\ do not attain
any-considerable length, measuring hardly more than double that
of the body, but are rather slender in form and beset with

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