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129
fint haarede i Kanterne. Hovedsegmentet stærkt afsmalnende
fortil, Pandedelen knn lidet udvidet og stumpt afkuttet i
Enden. Halesegmentet horizontalt. omtrent saa langt som
de 3 bagerste Kropssegmenter tilsammen og noget
bagenfor Midten forsynet med en Tværrad af 4—6 stærke Borster.
Øieknuden noget foran Midten af Hovedsegmentet, særdeles
smal, cylindrisk, lidt fortykket i Enden, Lindserne af
middelmaadig Storrelse, nær Spidsen. Snabelens Skaft omtrent
af Øieknudens Længde. Endepartiet mere end dobbelt saa
langt, tenformigt, den største Brede nærmere Basis.
Saxlemmerne længere end Hovedsegmentet og det følgende
Segment tilsammen, Skaftets sidste Led længst og, ligesom
det foregaaende, oventil besat med stærke, grovt cilierede
Børster, Haandén særdeles liden, endende med en tilspidset
Fortsats og fortil forsynet med et lidet 2-leddet Appendix.
Folerne, lige udstrakte, omtrent ’/2 Gang længere end
Saxlemmerne, 3die Led længere end de 2 følgende tilsammen,
Endedelen omtrent af 5te Leds Længde. De falske
Fødder hos Hannen omtrent af Legemets Længde, 4de Led
længst, Endedelens Led successivt aftagende i Størrelse,
Gangfødderne ikke fuldt dobbelt saa lange som Kroppen,
afsmalnende mod Enden og besatte med stærke, grovt
cilierede Børster. Laarleddet omtrent af Hoftepartiets
Længde og hos Hannen forsynet nær ’Basis med en konisk
tilspidset Fortsats, de 2 Lægled indbyrdes af ens Længde,
Endepartiet noget kortere, Fodleddet smalt og forlænget,
noget krummet og fint haaret i Inderkanten. Endekloen
forholdsvis kort. Legemets Længde (uden at regne Snabelen)
2.50"""; Spandvidde ’10"».
Bemærkninger. Denne Art. den eneste hidtil
bekjendte af Slægten, er kjendeligt beskrevet af Kiöyer og
afbildet i Gaimards store Værk. Senere er den at Dr.
Hansen underkastet en fornyet Undersøgelse, hvorved enkelte
interessante Forhold ved dens Bygning er bleven oplyste.
Beskrivelse. Længden af de af mig undersøgte
Exemplarer, regnet fra Panderanden til Enden af
Halesegmentet, overstiger ikke 21/2""", og Spandvidden er omtrent
10""". Dr. Hansen opgiver Længden af et ualmindelig
stort Exemplar til 4.9"’"’, hvorved dog ogsaa Snabelen er
medtaget i lige fortilstrakt Stilling.
Legemets Form (se PI. XIV, Fig. 1) maa idethele
siges at være temmelig undersætsig, skjøndt paa langt nær
ikke i den Grad som hos Arterne af foregaaende Slægt,
og navnlig er Lemmerne betydelig spinklere. Selve
Kroppen (Fig. 1 a, 1 b) er forholdsvis plumpt bygget og har
alle Segmenter meget skarpt afsatte fra hinanden. Ved
første Øiekast synes den at være ganske "nøgen, men ved
stærk Forstørrelse viser det sig, at den overalt er tæt
laadden af overordentlig smaa og fine Haar, der ogsaa
fortsætter sig ud paa Snabelen. Sidefortsatserne er ualmin-
Den norske Nordhavsexpedition. G O. Sars: Pycnogonidea.
vals and finely setous on the margins. Cephalic
segment diminishing greatly anteriorly, the frontal part only
little expanded and bluntly truncated at the extremity.
Caudal segment horizontal, about as long as the 3
posterior segments of the body taken together, and a little
behind the middle furnished with a transversal series
of 4—6 strong bristles. Ocular tubercle somewhat in
front of the middle of the cephalic segment, particularly
narrow, cylindric, slightly tumeficated at the extremity,
the lenses of medium size, near the point. Scape of
the proboscis about same length as the ocular tubercle,
the terminal part more than twice as long as it, fusiform,
broadest near the base. Chelifori longer than the
cephalic segment and the following one together, the last
joint of the scape longest, and, like the preceding one,
beset at the top with strong, coarsely ciliated bristles,
hand particularly small, terminating in a pointed process
and furnished anteriorly with a small 2-jointed appendix.
Palpi, straightly extended, about ’/i longer than the
chelifori, 3rd joint longer than the 2 succeeding ones together,
the terminal part about the length of the 5th joint.
False legs in the male about same length as the body,
the 4th joint longest, the joint of the terminal part
diminishing successively in size. Ambulatory legs not
quite twice as long as the trunk, tapering towards the
extremity and beset with strong, coarsely ciliated bristles,
femoral joint about same length as the coxal part and,
in the male, furnished near the base with a conically
pointed process, the 2 tibial joints, mutually, ol’ equal
length, terminal part somewhat shorter, propodal joint
narrow and elongated, somewhat bent and finely setous
on the inner margin, terminal claw relatively short.
Length of the body (exclusive of the proboscis) 2.50""".
Extent 10""".
Remarks. This species, the only one of the genus
hitherto known, lias been recognisably described by Kröyer,
and figured in Gaimard’s great work. Subsequently it has
been subjected to a renewed investigation by Dr. Hansen,
which has elucidated a few interesting features in respect
of its structure.
Description. The length of the specimens examined
by the author, measured from the margin of the frontal part
to the extremity of the caudal segment, does not exceed
2{)," and the extent is about 10""". Dr. Hansen states
the length of an unusually large specimen as 4.9""" in
which, however, the proboscis, in a straight anteriorly
extended condition, is also included.
The body (see Pl. XIV, fig. 1) must lie said to lie,
altogether, pretty stout, although not nearly to the same
degree as in the species of the preceding genus, and the
limbs are, in particular, slenderer. The trunk itself (fig.
1 a, 1 b) is relatively plumply built, and has all the
segments very sharply demarcated from each other. At
the first glance it appears to be quite bare, but upon
powerful enlargement it appears everywhere finely shaggy,
with extremely minute and delicate hairs, which are also
continued out upon the proboscis. The lateral processes
17
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