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117
Segmenter tilsammen, og har paa Midten en stærk
Ind-knibning, der danner en meget kort, men tydelig Hals.
Det ydre Parti, eller Pandedelen, er særdeles stærkt
udvidet og massivt, 3 Gange bredere end Halsen og dybt
rendetbrmigt fordybet efter Midten af den ovre Flade, med
Sidedelene stærkt opsvulmede. Halesegmentet er
horizon-talt, af smal cylindrisk Form og stumpt afrundet i Spidsen.
Øieknuden er yderst liden og rudimentær, saa at den
let forbisees, og mangler ethvert Spor af Pigment eller
Synselementer. Naar Legemet sees fra Siden (Fig. 3 a),
tager den sig ud som et lidet konisk tilspidset Fremspring
ved Basis af Halsdelen. Forfra eller bagfra seet (Fig. 3 c)
viser den sig imidlertid at danne en tværstillet, bredt
afrundet Flig.
Snabelen (se Fig. 3 a) er omtrent af
Hovedsegmen-tets Længde og noget skjævt nedadrettet. Den afsmalnes
successivt mod den stumpt afkuttede Spids og faar derved
et udpræget koniskt Udseende.
Saxlemmerne (se Fig. 3 a, 3 b) er meget kraftigt
udviklede og, lige udstrakte, omtrent af Kroppens Længde,
naar Snabelen og Halesegmentet fraregnes. Skaftet er af
cylindrisk Fonn, dog kjendelig indknebet nær Basis, og
rundtom besat med smaa, pigformige Haar. Haanden
(Fig. 3 d) er lidt kortere end Skaftet og udmærker sig fra
samme hos de ovrige Nymphonider ved sin eiendommelige
Fonn. Palmen er forholdsvis kort, stærkt indknebet ved
Basis og af udpræget trekantet Fonn. Den er noget
opsvulmet paa Midten og paa den ydre Flade besat med
lignende pigformige Haar som paa Skaftet, især henad
Basis af den ubevægelige Finger. Begge Fingre er meget
smale og forlængede, omtrent dobbelt saa lange som Palmen
og af udpræget klodannet Fonn. De mangler ganske de
sædvanlige Tænder i Inderkanten og er overordentlig stærkt,
næsten halvcirkelformigt krummede, endende i sylskarpe
Spidser, der krydser hinanden, naar Saxen lukkes. Selv
i dette sidste Tilfælde er der dog altid mellem Fingrene
en vid Aabning, hvad der bar givet Anledning til den af
Heller anvendte Artsbenævnelse „hians".
Folerne (Fig. 3 e) er betydelig kortere end
Saxlemmerne og af et lignende Udseende som hos SI. Xymphon.
De er temmelig tæt besatte med korte Haar. der navnlig
i det ydre Parti er meget tine, og har 2det Led længst,
de 3 folgende hastigt aftagende i Størrelse. Sidste Led
er meget smalt og sammen med næstsidste længere end
3die.
De falske Fodder er hos begge Kjøn omtrent at ens
Længde og, lige udstrakte, ikke fuldt saa lange som
Legemet (se Fig. 3 a). De er hos Hannen (Fig. 3 f) tæt
besatte med eiendommelige pigformige Borster, der for det
meste er mere eller mindre stærkt omboiede og noget
ment is of very considerable size, even appreciably longer
than the 3 succeeding segments together, and has a strong
constriction in the middle, which forms a very short but
distinct neck. The outer portion or frontal part, is
particularly greatly expanded and massive, 3 times broader
than the neck, and deeply, canalicularly hollowed along
the middle of the upper surface, with the lateral parts
strongly tumefied. The caudal segment is horizontal,
narrow cylindric in form, and bluntly rounded at the point.
The ocular tubercle is extremely small and
rudimentary, so that it is easily unobserved, and it is deficient in
the slightest trace of pigment or visual elements. When
the body is viewed laterally (fig. 3 a) the tubercle appears
like a small, conically acuminated projection at the base
of the cervical portion. Viewed anteriorly or posteriorly
(fig. 3 c), it shows itself to be a transversally placed,
broad rounded lobe.
The proboscis (see fig. 3 a) is about the length of the
cephalic segment, and is somewhat obliquely directed
downwards. It becomes gradually narrower towards the bluntly
truncated point, and in this way acquires a distinguished
conical appearance.
The chelifori (see fig. 3 a, 3 b) are very powerfully
developed, and, when straightlv extended, are about the length
of the body if the proboscis and caudal segment are
deducted. The scape is cylindric in form, but appreciably
constricted near the base, and is beset roundabout with small
spiniform hairs. The hand (fig. 3 d) is a little shorter than
the scape, and distinguishes itself from the same feature
in the other Nymphonids by its peculiar shape. The
palm is relatively short, strongly constricted at the base,
and of distinguished trigonal form. It is somewhat tumefied
in the middle and. upon the outer surface, is beset with
similar spiniform hairs as upon the scape, especially
towards the base of the immobile finger. Both fingers are
very narrow and elongated, about twice the length of the
palm and of distinguished claw-shaped form. They are
entirely deficient in the usual teeth on the inner margin,
and are extraordinarily strongly bent, almost semi-circulai’ly,
terminating in points sharp as awls, which cross each
other when the chela is closed. Even in that last ease
there is always left a wide opening between the fingers,
which feature has been the cause of the designation „hians-’
being given to it by Heller, as a specific name.
The palpi (fig. 3 e) are considerably shorter than
the chelifori, and are similar in appearance to those of the
genus Nymphon. They-are rather densely beset with short
setæ, which, especially in the outer portion, are very
delicate; the 2nd joint is the longest, and the 3 succeeding
ones diminish rapidly in size. The last joint is very
narrow, and, together with the penultimate one, is longer
than the 3rd.
The talse legs are about equal in length in both
sexes, and, straightly extended, are not quite as long as
the body (see fig. 3 a). In the male (see fig. 3 f) they are
densely beset with peculiar spiniform bristles, which are
generally more or less strongly recurvate and somewhat flexnous,
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