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66
et Pai- stærke Tænder nærmere Basis, Yderdelen fint
saug-takket. Gangfødderne tynde og forlængede, 4 Gange
længere end Legemet, næsten nøgne. 2det Lægled »/, længere
end Laarleddet og 3 Gange saa langt som det terminale
Afsnit; Tarsalleddet lineært, sædvanlig lidt længere end
Fodleddet; dette sidste stærkt krummet og bevæbnet i
Inderkanten med circa 6 forlængede Tomer; Endekloen
kraftig, noget niere end halvt saa lang som Fodleddet;
Bi-kloerne vel udviklede, næsten af Endekloens halve Længde.
Legemets Længde 6""": Spandvidde 54™".
Bemærkninger. Hvorvidt Fabricius’s Pycnogommi
grossipes er identisk med nærværende Form, maa jeg anse
for noget tvivlsomt. Sikkert er det imidlertid at Krøyers
Nymphon grossipes falder sammen med den her omhandlede
Art. Artsnavnet grossipes synes imidlertid af fiere af de
tidligere Autorer at have været anvendt for andre Arter,
navnlig N. Stromii. og i den nyere Tid har enkelte
Forskere. følgende Wilsons Exempel, under dette Navn tillige
indbefattet 2 andre Krßyerske Arter, nemlig N. brevitarse
og N. miodmn. At dette er urigtigt, er allerede ovenfor
paavist for den förste af disse Arters Vedkommende, og
ogsaa den sidste af disse Former tror jeg, som nedenfor vil
sees, at kunne hævde som en vel begrundet Art. I den
Begrændsning, hvori jeg opfatter nærværende Art, er den
blandt andet vel cliaracteriseret ved de ualmindelig kraftigt
udviklede Saxlemmer, hvis Haand desuden viser en meget
eiendommelig Form, fremdeles ved Folernes Bygning og
navnlig det indbyrdes Længdeforhold af disse Lemmers Led.
Beskrivelse. Legemets Længde hos fuldt udviklede,
ægbærende Individer har jeg fundet at være omkring 6"™,
med en Spandvidde af 54""". Arten opnaar saaledes en
meget betydeligere Størrelse end de i det foregaaende
omtalte Former.
Legenisfornien (se PI. VI, Fig. 2) maa idethele siges
at være temmelig spinkel, og navnlig er Fødderne betydelig
længere end hos de i det foregaaende omtalte Arter. Selve
Kroppen (Fig. 2 a, 2 b) er af den sædvanlige cylindriske
Form, med Segmenterne skarpt markerede og
Sidefortsat-serne temmelig stærkt forlængede samt skilte ved
forholdsvis brede Mellemrum. Hovedsegmentet er af betydelig
Størrelse, omtrent saa langt som de 3 følgende Segmenter
tilsammen, og har en tydeligt begrændset, smalt cylindrisk
Hals. Den foran samme beliggende Pandedel er stærkt
udvidet, næsten 3 Gange bredere end Halsen og har den
forreste Kant, mellem Insertionen for Saxlemmerne, jevnt
udrandet. Halesegmentet (Fig. 2 i) er tydeligt indskaaret
i Spidsen, forøvrigt af sædvanligt Udseende.
Øieknuden (Fig. 2 c), der ligger omtrent dobbelt saa
langt fra Panderanden som fra Hovedsegmentets bagre Rand,
er stærkt opliøiet og konisk tilspidset i Enden. Lindserne
er forholdsvis store og ligger nærmere Basis end Spidsen
af Øieknuden.
spines slender lanceolate, with a pair of strong teeth near
the base, outer part finely serrated. Ambulatory legs
slender and elongated, 4 times the length of the body,
well-nigh bare; 2nd tibial joint ’IS longer thau the femoral joint
and 3 times as long as the terminal part; tarsal joint linear, ■
usually rather longer than the propodal joint; the latter
very considerably curvate and armed on the inner edge
with about 6, elongate spines; terminal claw powerful, a
little more than halt as long as the propodal joint; auxiliary
claws well developed, almost half the length of the terminal
claw. Length of body 6""°; extent 04""".
Remarks. Whether Fabricius’s Pycnogonum
grossipes is identical with the present form I must regard as
somewhat open to doubt. Meanwhile, it is quite certain
that Krøyers Nymphon grossipes agrees exactly with
the species treated of here. The specific term grossipes
would seem, however, to have beeu applied by divers of
the earlier authors to other species, more especially to N.
Strömii. and of late a few naturalists have comprised
under this designation 2 other species of Kröyer’s, viz., N.
brevitarse and N. milium. That such a classification is
wrong, has been already shown above with respect to the
former of those species; and also the latter of the two can,
I think, as will appear farther on, be maintained as a
well-defined species. In the restricted sense in which I
have regarded the present species, it is well characterised,
among other criteria, by the remarkably powerfully developed
chelifori, their hand, too, exhibiting a very peculiar form;
furthermore, by the structure of the palpi, and, in particular, by
the longitudinal relations of the joints of those limbs mutually.
Description. The length of the body in fully
developed, ovigerous individuals I have found to be, about O’™,
the extent 54""". The species attains, therefore, a much
more considerable size than any of the foregoing forms.
The body (see Pl. VI, tig. 2) must, on the whole, be
called rather slender, the legs esspecially being much
longer than in any of the previously mentioned species. The
trunk itself (fig. 2 a. 2 b) is of the usual cylindrical form, with
the segments sharply marked off, and the lateral processes
considerably elongated and separated by relatively broad
interspaces. The cephalic segment is of considerable size, about
as long as the 3 following segments taken together, and has a
distinctly defined, narrow cylindric neck. The frontal part,
located before it. is very much expanded, almost 3 times
broader than the neck, and has the anterior edge, between
the insertion of the chelifori, evenly emarginate. The
caudal segment (fig. 2 i) is distinctly incised at the point,
otherwise its appearance is as usual.
The oculiferous tubercle (fig. 2 c), placed at about
twice the distance from the frontal margin as from the
posterior edge of the cephalic segment, is strongly
protuberant and conically acuminated at the extremity. The
lenses are comparatively large and lie nearer to the base
thau the point of the oculiferous tubercle.
I
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