107 
land (Miers), 0stkysten af Nordamerika (Wilson), Davis- 
straedet (Hansen) og det sibiriske Ishav (Stuxberg) og er 
saaledes ifolge sin Forekomst en udprmget arktisk og cir- 
cumpolar Form. 
34. Chmtonymplion spinosum, (Goodsir). 
(.PI. XI, Fip. 3, a— i). 
Nymphon spinosum, Goodsir. Edinburgh New Phil. Journal, 
Yol. 32, p. 139, PL III. Fig. 3. 
— Idem, Ann. Nat. Hist. Yol. 14. p. 3, 
PL 1, Fig. 17, 18. 
Chcetonymphon spinosum, G. 0. Sars, Pycnogonidea borealia 
& arctica, No. 34. 
Artscharaeter. Legemet ' noget mindre underssetsigt 
end hos foregaaende Art, med Sidefortsatserne mere tyde- 
ligt skilte og Rygsiden af Segmenterne besatte med lange 
og stairke bagud krummede Borster. Hovedsegmentet 
omtrent som hos Oh. liirtipes, men med noget smalere 
Hals. 0ieknuden stmrkt ophoiet. opsvulmet i Enden; 
Lindserne storre end hos foregaaende Art. Snabelen licit 
kortere end Hovedsegmentet, cyliudrisk. Saxlemmerne lig 
samme hos Ch. hirtipes, men med kortere Palm og be- 
tydelig lseugere og tvndere Fingre. Fplerne spinklere og 
mindre tset borstebesatte end hos denne Art. De falske 
Fodder lios Hannen mindre robuste, med 5te Led kortere 
og mere sparsomt borstebesat ; Rancltornerne lancetformige 
og i sin liele Laengde tydeligt saugtakkede. Gaugfodderne 
neppe mere end 3 Gauge laengere end Legemet, noget 
mindre robuste end hos de 2 foregaaende Arter og rundt 
om taet besatte med ualmindelig lange og stive Borster, 
2 det Lreglecl omtrent 2^2 Gang lamgere end det terminate 
Afsnit, Tarsalleddet smalere end hos foregaaende Art, 
Fodleddet over dobbelt saa langt som Tarsalleddet, smalt 
linesert, med talrige Torner af ulige Laengde langs hele 
Inderkanten; Endekloen noget mere end halvt saa lang 
som Fodleddet, Bikloerne vel udviklede, af Kloens halve 
Ltengde. JEgmasserne mindre end hos Ch. hirtipes, med 
faa og meget store LEg. Farven graa, med brunligt gjen- 
nemskinnende Tarmsystem. Legemets Lfengde 8 1 /,™; Spand- 
vidde 51”"”. 
Bemserkninger. Nmrvserende Art, der af enkelte 
senere Forskere synes at vrnre forvexlet med foregaaende, 
staar denne vistnok meget luer. men er ved noiere Undei- 
sogelse let og sikkert at adskille, saavel ved den ualmin- 
delig staerke Borstebesaitning som ved 0ieknudens Form, 
samt Saxlemmernes og Gangfoddernes Bvgning. At den 
er identisk med Goodsir’s Art finder jeg ganskc utvivlsomt, 
baade paa Grand af Overensstemmelser i Beskrivelsen og 
fordi den har en mere sydlig Udbredning end de pvrige 
Arter af Slaegten. 
North America (Bell), Greenland (Miers), the East Coast 
of North America (Wilsou), Davis Straits (Hansen), and 
the Siberian Polar Sea (Stuxberg), and is therefore, ac- 
cording to its occurrence, a prominent Arctic and circum- 
polar form. 
34. Chaetonymphon spinosum, (Goodsir). 
(PL XI, fig. 3, a— i). 
Nymphon spinosum, Goodsir, Edinburgh New Phil. Journal, 
Vol. 32, p. 139, Pl. III, fig. 3. 
— — Idem, Ann. Nat. Hist. Vol. 14, p. 3, 
PL I, figs. 17, 18. 
Choetonymphon spinosum, G. O. Sars, Pycnogonidea borealia 
& arctica, No. 34. 
Specific Characters. Body somewhat less thickset 
than in the preceding species, with the lateral processes 
more distinctly defined, and the dorsal side of the seg- 
ments beset with long and prominently backwards curved 
bristles. Cephalic segment about as in Ch. hirtipes, but 
with somewhat narrower neck. Oculiferous tubercle ex- 
ceedingly elevated, swollen at the extremity; lenses larger 
than in the preceding species. Proboscis a trifle shorter 
than the cephalic segment, cylindric. Chelifori as in Ch. 
hirtipes, but with shorter palm and considerably longer and 
thinner fingers. Palpi more slender and less densely set- 
ous than in that species. False legs in male less robust, 
with the 5th joint shorter and more sparingly beset with 
bristles; marginal spines lanceolate, and distinctly serrate 
throughout the whole of their length. Ambulatory legs 
scarcely more than 3 times longer than the body, a little 
less robust than in the 2 preceding species, and beset all 
round with remarkably long and stiff bristles, 2nd tibial 
joint about 27 <, times longer than the terminal section, tarsal 
joint narrower than in the preceding species, propodal 
joint more than twice as long as the tarsal joint, narrow- 
linear, with numerous spines of unequal length along the 
whole of the inner edge; terminal claw a little more than 
half as long as the propodal joint, auxiliary claws well 
developed, half the length of the claw. Egg-masses 
smaller than in Ch. hirtipes, with few and very large 
ova. Colour grey, with brownish intestinal system shining 
through. Length of body 8 1 /**"; extent 51™. 
Remarks. The present species, confounded apparently 
by certain later naturalists with the preceding one, does 
indeed approximate that form very closely, but, on further 
examination, is easily and surely distinguished, both by 
the remarkably strong setous covering as well as by the 
form of the oculiferous tubercle, and the structure of the 
chelifori and ambulatory legs. That the form is identical 
with Goodsir’s species, I regard as quite indubitable, both 
from agreements in description and because it has a 
more southerly distribution than the other species of the 
genus. 
14 * 
