11 
foregaaende Led, og soni paa Gangfpdderne stserkt chitini- 
seret, med det ydre Parti krummet og endende i en syl- 
skarp Spids. 
Den ydre JEgmasse (Pig- 1 i) ; der her som hos alle 
andre Pycnogonidcer kun findeS hos Hannerne, er enkelt 
og kageformig, af uregelmaessig afrundet Form og daekker 
St 0 rsteparten af Dyrets Bugside. De enkelte JEg er over- 
ordentlig smaa og talrige, omsluttede al en he lies meget 
tynd og gjennemsigtig Membran. 
Alle Dyrets Integumenter er meget haarde og tykke, 
med en noget ru Overflade, bevirket af talrige smaa knu- 
deformige Fremspring. Hist og her Andes, navnlig paa 
Lemmerne meget korte og spredte Haar, der dog kun ' ed 
strnrk Forstprrelse lader sig paavise. 
Farven er noget varierende fra lyst hvidgul incltil 
morkt brunlig eller rustfarvet. 
Forekorrut og Levevis. Yed X urges Kyster (ore- 
kommer denne Art meget almindelig ligefra Christianiafjor- 
den til Vadso, hyppigst ganske user Stranden paa ringe 
Dyb, men i enkelte Tillable ogsaa paa meget stprre Dyb- 
der, indtil 150 Favne. Yed Lofoten og Finmarken har 
jeg taget den ikke ualmindelig i Fjaeren under Stene. 
I sine Bevsegelser er den overordentlig langsom og 
traeg, eiulog i hoiere Grad end nogen anden mig bekjendt 
Pycnogonide. Som oftest ser man den nsesten ubevssgelig 
fastklamret til en eller anden Gjenstand, kun af og til vi- 
sende en svag Strakning og Boining at en eller flere af Gang- 
fodderne. Snabelen synes dog at kunne hevseges temmelig 
frit og paa to forskjellige Maader, idet den dels kan boies 
i forskjellige Betninger i Forhold til Hovedsegmentet, dels 
til en vis Grad inddrages i eller udskydes Ira dette. Som 
ovenfor antydet, er der Grand til at antage, at Dyret idet- 
mindste under visse Omstamdigheder foyer et Slags parasi- 
ti s k Liv. Det er nemlig meget almindeligt, at man finder 
denne Form fastklamret til de store paa grundt Yand 
levende Actinier, f. Ex. Tealia digitata og crassicornis. 
Hvorvidt det er det af disse Dvrs Legeme afsondre'de Slim 
eller de forskjellige fremmede, til Actiniens Legeme klm- 
bende Partikler, der tjener den til Naming, er imidlertid 
endnu ikke med Sikkerhed godtgjort. 
Udbredning. Arten synes at have en smrdeles vid 
geographisk Udbredning. Dog er det muligt, at man i en- 
kelte Tilfielde har f'orvexlet andre mserstaaende Artec med 
denne Form. Philippi’s Angivelse af dens Forekomst i 
M iddelhavet, ved Neapel, anser jeg saaledes for meget 
tvivlsom, da den ikke senere af Dohrn er paavist her, 
men vel et Par andre Alter af Slmgten. Ligeledes finder 
jeg. at Artens Forekomst ved Chili (ifolge Nicolet) og ved 
Japan (ifolge Slater) i M Grad tiltrsenger Bekreeftelse. 
EfterminFormening er den en vsesentlig kun for de nord- 
lige Have characteristisk Form, hvad der ogsaa synes at 
bekraeftes deraf, at den ved vore nordlige Kyster ialminde- 
lighed opnaar en kraftigere Udvikling og betydehgere Stor- 
relse end lamgere sydpaa. Foruden ved Norge kjendos den 
form (fig. 1 h). The terminal claw is about as long as 
the preceding joinfr, and, like the ambulatory legs, highly 
chitinized, with the outer part curved and terminating in 
a most acute point. 
The outer egg-mass (fig. 1 i), which in this animal, 
as in all Pycnogonids, we find in the males only, is simple 
and cake-like, of an irregular rounded form, and covers the 
greater part of the ventral surface. The ova are exceed- 
ingly small and numerous, and invested with a common 
very thin and translucent membrane. 
All the integuments of the animal are uncommon- 
ly hard and thick, with a roughish surface, occasioned by 
numerous small tubercular protuberances. Here and there 
occur, more especially on the limbs, very short and scat- 
tered hairs, perceptible only however under a strong magnifier. 
The colour is somewhat variable, ranging from a light 
whitish-yellow to dark-brownish, or rusty. 
Occurrence and Habits. — On the coasts ol Noi- 
way this species is very common from the Christianiafjord 
to Yadso, being met with most frequently near the shore 
in shallow water, but in some cases at a very considerable 
depth, down even to 150 fathoms. In Lofoten and 
Finmarlc I have not seldom taken it on the beach, from 
under stones. 
Tn its movements this animal is remarkably slow and 
sluggish, more so indeed than any other Pycnogonid I 
know of. As a rule you see it firmly clasped to some 
object or other, well-nigh motionless, a feeble stretching oi 
bending now and then of one or more of the ambulatory 
legs being the only sign of life. The proboscis however 
admits, it would seem, of being moved with comparative 
freedom and in two different ways, since, on the one hand, 
it can be bent about in various directions to the cephalic 
segment, and, on the other, to a certain extent be with- 
drawn into or ejected from that -part. As intimated above, 
there is reason to assume that the animal - at least under 
certain conditions — leads a kind of parasitic life. For very ' 
often this form is found firmly clasped to the large Actiniae 
inhabiting shallow water, e. g., Tealia digitata and crassicornis. 
Whether it be the mucus secreted by these animals, or the 
different particles of foreign matter adhering to their body, 
that serve the Pycnogonid as food, is a question however 
not yet finally settled. 
‘ Distribution. — This species would appear to have 
a wide geographical distribution. Meanwhile, it ma\ be 
that in some cases a nearly related form has been con- 
founded with the present Pycnogonid. Philippi’s statement 
as to its occurrence in the Mediterranean, at Naples, I 
regard as highly doubtful, Dohrn not having observed 
it "there, though he met with two other species of the 
genus. Likewise, too, the occurrence of the species on 
the coast of Chili (according to Nicolet), and on the coast 
of Japan (according to Slater), calls, I certainly think, 
for confirmation. In my judgment, it is a form 
essentially characteristic of Northern Seas, which indeed 
appears from the fact of its attaining a more powerful de- 
velopment and more considerable size on the northern 
