100 
Storeggen, eu auden (Stat. 48) 0st af Island, en 3die 
(Stat. 200) N V. af Finmarkcn, eu 4de (Stat. 343) SV af 
Spitsbergen; Dybden fra 299 til 743 Fame. Alle Sta- 
tioner tilhprer den kolde Area, og Arten maa derfor 
utvivlsomt ansees som en segte arktisk Form. 
Udbredning. Skjondt Arten ikke af nogen af de 
senere Forskere er bleven noteret, kan jeg dog for den 
endnu opgive en anden Lokalitet, udenfor det under Nor fi- 
lm vs-Expeditionen undersogte Havstrog. Jeg har nemlig 
ganske nylig gjennem Dr. Hansen havt til Underspgelse 
nogle Pycnogonider for det gronlandske Hav, hvoriblandt 
ogsaa fandtes et ganske ungt Exgmplar af nmrvaerende 
Art. Exemplaret blev taget paa 65° 39' N. B. og 28° 
25' V. L. fra et Dyb af 553 Favne; Sten og Skjsel. 
Arten har saaledes en temmelig vid Udbredning i de ark- 
tiske Have. 
Gen. 2. Chsetonymphon, G. 0. Sars. 1888. 
Nymphon, autorum (ex parte). 
Slsegtoharacter. Legemet saedvanligvis undersaetsigt 
og mere eller mindre ttet liaarbesat oventil. Hovedsegmentet 
af betydelig Storrelse, med forkoldsvis kort Hals og stserkt 
udvidet Pandedel. Hales egmentet forlsenget, konisk til- 
lobende i Enden. 0ieknuden mere eller mindre ophoict, 
med tydelige Liudser. sajdvanlig beliggende user Spidsen. 
Snabelen stor, cylindrisk. Saxlemmerne tset haarede, Haan- 
den kortere end Skaftet, Fingrene smale og forlsengede, stserkt 
krummede i Spidsen og i Inderkanten bevsebnede med tynde, 
ens udviklede Tsender. Folerne korte og underssetsige, tset 
haarede, De falske Fodder hos Hannen temmelig ulig 
samme hos Hunnen, med 5te Led stserkt udvidet i sit ydre 
Parti og her tset borstebesat, Bandtornerne sa.ugtakkede, 
Endekloen kamformig tandet. Gangfodderne mindre forlsen- 
gede end hos Nymphon, mere eller mindre stserkt haarede, 
Laarleddet hos Hunnen stmrkt opsvulmet, hos Hannen 
forsynet i Inderkanten med en Bsekke af stumpe Knuder; 
Tarsallcddet kort, Fodleddct kraftigt udviklet med stserke 
Torner i Inderkanten, Endekloen mere eller mindre for- 
kenget, med tydelige Bikloer. Larven forsynet ved Ud- 
klsekningen med Anlseg til 2 Par Gangfodder. 
Bemserkninger. Jeg har fundet det rigtigt at op- 
stille nservserende Slaegt til Optagelse af en Del, tidligere 
til Shegt Nymphon henforte Alter, der baade i den almin- 
delige Haliitus og i visse anatomiske Detailler, endelig 
ogsaa i Udviklingen skiller sig kjendeligt fra de typiske 
Nymphoner. Som Type for Slsegten kan opstilles den i 
de arktiske Have saa almiudelig udbredte N. Mrtipes Bell. 
Meget nser til denne slutter sig de 2 Arter, N. spinosum 
Goodsir og iV. teneUum G. 0. Sars; noget mere -afvigende, 
skjondt aabenbart tilhorende samme Shegtstype, er paa den 
another (Stat. 48) east of Iceland, a third (Stat. 200) 
north-west of Finmark, and the fourth (Stat. 343) south- 
west of Spitsbergen; depth from 299 to 743 fathoms. 
The Stations are all located in the cold area, and the 
species must, therefore, unquestionably be regarded as a 
true Arctic form. 
Distribution. Though the species has not been 
recorded by any of the later naturalists, I can yet give 
another locality for it outside the ocean-tract explored 
on the North- Atlantic Expedition. I have quite lately had 
sent me by Dr. Hansen for examination, several Pycno- 
gonids from the Greenland Sea, among which there was 
a quite young specimen of the present species. The ex- 
ample in question was taken in lat. 65° 39' N., long. 28° 
25' W., at a depth of 553 fathoms; bottom stones and 
shells. The species has thus a rather wide distribution 
in the Arctic Seas. 
Gen. 2. Chsetonymphon, G. 0. Sars. 1888. 
Nymphon, autorum (ex parte). 
Generic Characters. Body usually thickset, more or 
less densely setous above. Cephalic segment of consider- 
able size, with comparatively short neck and frontal part 
much expanded. Caudal segment elongate, tapering con- 
ically at the extremity. Oculiferous tubercle more or 
less elevated, with distinct lenses, usually near the point. 
Proboscis large, cylindric. Chelifori densely hairy, hand 
shorter than the scape, fingers narrow and elongated, 
exceedingly bent at the tips and armed on the inner 
edge with thin, uniformly developed teeth. Palpi short 
and thickset, densely setous. False legs in the male 
rather unlike those of the female, with the 5th joint 
much expanded in its outer part, and there densely beset 
with setae, marginal spines serrated, terminal claw pec- 
tinated. Ambulatory legs less elongated than in Nymphon, 
more or less prominently setous, femoral joint much 
swollen in the female, in the male furnished on the 
inner edge with a series of blunted nodules; tarsal joint 
short, propodal joint powerfully developed, with strong 
spines on the inner edge, terminal claw more or less 
elongated, with distinct auxiliary claws. The larva on 
being hatched appears with traces of 2 pairs of ambul- 
atory legs. 
Remarks. I have seen fit to establish the present genus 
in order to include divers species previously referred to the 
genus Nymphon, which, both in their general habitus and in 
certain anatomical details as well as, also, in development, 
differ appreciably from the typical Nymphons. As type 
of the genus may be taken N. Mrtipes Bell, so generally 
met with throughout the Artie Seas. Very closely to this 
form, do the 2 species, N. spinosum Goodsir and N. tenel- 
lum G. O. Sars ally themselves; somewhat more divergent, 
though evidently of the same generic type, are, on the one 
