- Project Runeberg -  Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 6. Bind /
131

(1880-1901)
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131

grovt cilierede Borster, 4 paa Iste og 9 paa 2det Led,
ordnede i 2 alternerende Bader. Sidste Led (Fig. 1 f),
der forestiller Haanden, er særdeles lidet og ender i en
konisk tilspidset Fortsats, hvis ydre Parti er afgrændset
ved en Tværsutnr. I nogen Afstand fra denne Fortsats
er til Leddets forreste Side fæstet et. yderst lidet 2-leddet
Appendix, der ifolge sin Stilling maa betragtes som et
Rudiment af den bevægelige Finger, ligesom den
ovenomtalte koniske Fortsats synes at repræsentere den ubevægelige
Finger. Hos yngre Individer er, som først af Dr. Hansen
paavist, Haanden udviklet til en fuldstændig, skjøndt
forholdsvis meget liden Chela, med kloformige, i Enden stærkt
krummede Fingre (se Fig. 1 g, 1 h). liver med et Par
Sniaatænder i Inderkanten.

Folerne (Fig. 1 i) er mere end ’/2 Gang længere end
Saxlemmerne og bæres ialmindelighed stærkt S-formigt eller
rettere zigzag-forniigt bøiede. De er af spinkel Fonn, hist
og her besatte med grove Børster - og sammensatte af 10
vel begrændsede Led, hvoraf det 3die er længst. De 2
første Led er meget korte og ogsaa 4de Led forholdsvis
lidet, hvorimod 5te Led er af betydelig Størrelse, skjøndt
mindre end 3die. De 5 øvrige Led forestiller Endedelen
og er alle forholdsvis korte, dog 2det noget længere end de
ovrige. Som hos Slægten Ammothea er de i Inderkanten
besatte med fine og tætte Børster.

De falske Fødder (se Fig. 1 b, 1 k) er temmelig
stærkt forlængede, lige udstrakte omtrent af Legemets
Længde, og viser idethele en fuldkommen normal Bygning.
De bestaar af 10 vel begrændsede Led, hvoraf 4de og 5te
som sædvanlig er længst. Hos Hannen er 4de Led noget
længere end 5te og begge besatte med fine ombøiede
Børster. Endedelen er ikke fuldt dobbelt saa lang som
5te Led og har Leddene successivt aftagende i Størrelse.
De 4 yderste er i den indre Kant bevæbnede med en
dobbelt Rad af grovt saugtakkede Torner (se Fig. 1 m,
1 n). Endekloen (se Fig. 1 m) er tydeligt udviklet, skjøndt
forholdsvis kort og ganske glat.

. Gangfødderne (se Fig. 1. 1 o) er ikke fuldt dobbelt
saa lange som Legemet, naar Snabelen fraregnes, og af
temmelig spinkel Form, samt successivt afsmalnende fra
Basis til Enden. De er besatte med stærke, delvis grovt
cilierede Borster, der er bøiede i forskjellige Retninger og
giver dem et laaddent Udseende. Hofteleddene er navnlig
hos Hunnen stærkt opsvulmede, da Ovarierne, uligt hvad
Tilfældet pleier at være, er indskrænkede til dette Parti,
uden at strække sig ind i Laarleddet. Dette sidste Led
er derfor hos begge Kjøn meget smalt, af lineær Form,
og skiller sig kun hos Hannen ved Tilstedeværelsen nær
Basis af et konisk tilspidset Fremspring (se Fig. 1 o).
De 2 Lægled er begge omtrent af samme Længde som
Laarleddet, men kjendelig smalere, navnlig det sidste.
Endepartiet (se Fig. 1 p) er noget kortere end 2det Lægled
og har Tarsalleddet særdeles lidet, hvorimod Fodleddet er
temmelig forlænget, ganske svagt krummet og lidt fortykket
i sit basale Parti. Begge Led er tæt besatte med korte

strong, coarsely ciliated bristles, 4 oil the 1st and 9 on
the 2nd joint, arranged in 2 alternating series. The last
joint, (fig. 1 f) which represents the hand, is particularly
small, and terminates in a conically pointed process whose
outer portion is defined by a transversal suture. At some
distance from this process an extremely small 2-jointed
appendix is secured to the foremost side of the joint, which,
from its situation, must be regarded as a rudiment of the
mobile finger, just as the above mentioned process appears
to represent the immobile finger. In young individuals, as
first shewn by Dr. Hansen, the hand is developed to a
perfect, although relatively very small chela with
claw-shaped fingers strongly bent at the end (see fig. 1 g, 1 h),
each with a couple of small teeth on the inner margin.

The palpi (fig. 1 i) are more than one half longer
than the chelifori, and are usually carried curved in strong
S-form or, more correctly speaking, zig-zag form. They are
slender in structure and beset here and there with coarse
bristles, and composed of 10 well defined joints, of which
the 3rd is the longest. The 2 first joints are very short,
and the 4th joint is, also, relatively small, whilst the 5th
joint is of considerable size although a good deal smaller
than the 3rd one. The other 5 joints represent the terminal
part and are all relatively short, still the 2nd is somewhat
longer than the others. They are, as in the genus
Ammothea, beset on the inner edge with fine, close-set bristles.

The false legs (see fig. 1 b, 1 k) are rather greatly
elongated, straightly extended about same length as the
body, and altogether exhibit a perfectly normal structure
They consist of 10 well marked joints, of which the 4th
and 5th are, as usual, the longest. In the male the 4th
joint is somewhat longer than the 5th, and both are beset
with fine recurved bristles. The terminal part is not
quite twice as long as the 5th joint, and the joints
diminish successively in size. The 4 outermost ones are
armed on the inner margin with a double series of coarse,
serrated spines (see fig. 1 m. 1 n). The terminal claw
(see fig. 1 m) is distinctly developed, although relatively
short and quite smooth.

The ambulatory legs (see fig. f, 1 o) are not quite
twice as long as the body when the proboscis is excluded,
pretty slender in form, and diminish progressively from
the base to the extremity. They are beset with strong,
to some extent coarsely ciliated bristles, which are bent in
various directions and impart a hirsute appearance to
them. The coxal joints, especially in the female, are
greatly tumefied, as the ovaries, unlike what is usually the
case, are confined to that part without extending
themselves into the femoral joint. The last-named joint is,
therefore, in both sexes, very narrow, linear in form, and
is only distinguished in the male by the presence near the
base of a conically pointed prominence (see fig. 1 o). The
2 tibial joints are both about same length as the femoral
joint, but appreciably narrower, especially the last one.
The terminal part (see fig. 1 p) is somewhat shorter than
the 2nd tibial joint and the tarsal joint is particularly
small, while the propodal joint is pretty much elongated,

17*

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