66 
et Par stserke T sender nsermere Basis, Yderdelen fint saug- 
takket. Gangfodderne tynde og forlsengede, 4 Gauge lsen- 
gere end Legemet, nsesten nogne. 2det Lsegled 1 / 8 lsengere 
end Laarleddet og 3 Gange saa langt som det terminale 
Afsnit; Tarsalleddet linesert, ssedvanlig lidt laengere end 
Fodleddet; dette sidste staerkt krummet og bevmbnet i In- 
derkanten med circa 6 forlsengede Torner ; Eudekloen kraf- 
tig, noget mere end halvt saa lang som Fodleddet ; Bi- 
kloerne vel udviklede, nsesten af Endeklocns halve Lamgde. 
Legemets Lsengde Q mm ; Spandvidde 54 ra “‘. 
Bemserkninger. Hvorvidt Fabric ius's Pycnogonum 
grossipes er identisk med nservserende Form, maa jeg anse 
for noget tvivlsomt. Sikkert er det imidlertid at Ivroyers 
Nymplion grossipes falder sammen med den her omhandlede 
Art. Artsnavnet grossipes synes imidlertid af Here af de 
tidligere Autorer at have vseret anvendt. for andre Arter, 
navnlig N. Str0mii, og i den nyere Tid har enkelte For- 
skere, folgende Wilsons Exempel, under dette Navn tillige 
indbefattet 2 andre Kroycrske Arter. nemlig N. hrevitarse 
og N. mixturn. At dette er urigtigt, er allerede ovenior 
paavist for den forste af disse Arters Vedkominende. og og- 
saa den sidste af disse Former tror jeg, som nedenfor vil 
sees, at kunne hsevde som en vel begrundet Art. I den 
Begrsendsning, hvofi jeg opfatter nservserende Art, er den 
blandt andet vel characteriseret ved de ualmindelig kraftigt 
udviklede Saxlemmer, hvis Haand desuden viser en rneget 
eiendommelig Form, fremdeles ved Kolernes Bygning og 
navnlig det indbyrdes Ltengdeforhold af disse Lemmers Led. 
Beskrivelse. Legemets Laengde lios fuldt udviklede, 
segbserende Individer har jeg fundet at vaere omkring 6" 1 ®, 
med en Spandvidde af 54™"'. Arten opnaar saaledes en 
rneget betydeligere Storrelse end de i det foregaaende om- 
talte Former. 
Legemsformeu (se PL YI, Fig. 2) maa idethele siges 
at vsere temmelig spinkel, og navnlig er Fodderne betydelig 
lsengere end bos de i det foregaaende omtalte Arter. Selve 
Kroppen (Fig. 2 a, 2 b) er af den ssedvanlige cylindriske 
Form, med Segmenterne skarpt markerede og Sidefortsat- 
serne temmelig staerkt forlsengede saint skilte vod forholds- 
vis bredc Mellemrum. Hovedsegmentet er af betydelig 
Storrelse, omtrent saa langt som de 3 folgende Segmenter 
tilsammen, og har en tydeligt begramdset, smalt cylindrisk 
Hals, lien foran samuie beliggende Pandedel er staerkt 
udvidet, naesten 3 Gange bredere end Halsen og bar den 
forreste Kant, mellem Insertionen for Saxlemmerne, jevnt 
udrandet. Halesegmentet (Fig. 2 i) er tydeligt indskaarot 
i Spidsen, forovrigt af sacdvanligt Udseende. 
Gieknuden (Fig. 2 c), der ligger omtrent dobbelt saa 
langt fra Panderanden som fra Hovedsegmentets bagre Rand, 
er staerkt ophoiet og konisk tilspidset i Endent Lindserne 
er forholdsvis store og ligger nacrmere Basis end Spidsen 
af Gieknuden. 
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 1 /. ! longer than 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 half as long as the propodal joint ; auxiliary 
claws well developed, almost half the length of the terminal 
claw. Length of body 6™; extent 54”‘". 
Remarks. Whether Fabricius’s Pycnogonum gros- 
sipes is identical with the present form I must regard as 
somewhat open to doubt. Meanwhile, it is quite certain 
that Kroyer's Nymphon grossipes agrees exactly with 
the species treated of here. The specific term grossipes 
would seem, however, to have been applied by divers of 
the earlier authors to other species, more especially to N. 
Stromii, and of late a few naturalists have comprised 
under this designation 2 other species of Kroyer’s, viz., N. 
hreritarse and N. mizium. 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 ; fur- 
thermore, 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 devel- 
oped, ovigerous individuals I have found to be, about 6 mm , 
the extent 54™«. The species attains, therefore, a much 
more considerable size than any ol the foregoing forms. 
The body (see PI. VI, fig. 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 inter- 
spaces. The cephalic segment is of considerable size, about 
as long as the 3 following segments taken together, and has a 
distinctly defined, narrow cyliudric neck. The frontal part, 
located before it, is very much expanded, almost 3 times 
broader than the nock, and has the anterior edge, between 
the insertion of the chelifori, eveidy cmarginate. 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 pro- 
tuberant and conically acuminated at the extremity. The 
lenses are comparatively large and lie nearer to the base 
than the point of the oculiferous tubercle. 
