132 
Haar, hvorimod egentlige Randtorner mangier. Endekloen 
er forkoldsvis kort, neppe mere end 1 / 3 saa lang som Fod- 
leddet, og uden Spor af Bikloer. 
De ydre JEgmasser (se Fig. 1 b), der ialmindelighed 
er fsestede til de falske Fodders 4de Led, er uregelmaessig 
kugledannede og indeholder et begrsendset Antal af mid- 
delstore iEg, omgivne af en belles tynd Membra®. 
Legemets Farve er mere eller mindre tydelig gulagtig, 
med morkebrunt gjennemskinnende Tarmsystem. Men som- 
oftest er Dyret saa tset besat med Mudder og andre frem- 
mede Dele, at Farven er meget vauskelig at erkjende. 
Forekomst. Jeg liar observeret denne eiendomme- 
lige Pycnogonide ganske enkeltvis paa forskjellige Punkter 
af vor Kyst, nemlig ved Christiansund, ved Yaldersund 
nordenom Trondhjemsfjorden, og ved Kvalo paa Nordlands- 
kysten; Dybden 50— lOOFavne. Under Nordhavs Expedi- 
tionen toges et enkelt Exemplar- i Havet mellem Finmarken 
og Beeren Eiland (Stat. 290) paa et Dyb af 191 Favne. 
Desuden har jeg havt Anledning til at undersage et enkelt 
Exemplar, taget under Nordenskjolds Expedition i det 
Kariske Hav. 
Udbredning. Arten er forst af Kroyer beskreven 
fra Gronland og senere af Jarzynsky anfort fra den mur- 
manske Kyst, samt af Dr. Hansen fra det Kariske Hav. 
Den maa ifolge denne sin Forekomst utvivlsomt ansees for 
en segte arktisk Form. 
Gen. 13. Ascorhynehus, G. O. Sars. 1876. 
Slsegtcharacter. Legemet smalt og forkenget, med 
skarpt afsatte Segmenter og vidt adskilte Sidefortsatser. 
Hovedsegmentet med forlsenget Hals og kollefonnigt udvidet 
Pandedel; Halsfortsatserne utydelige. Halesegmentet s;er- 
deles smalt, cyliudriskt. Gieknuden af forskjellig Form, 
ialmindelighed uden Synselementer. Snabelen af betydelig 
Storrelse, nresten paereformig og mere eller mindre ind- 
boiet under Legemet, Skaftet meget kort. Saxleminerne 
smrdeles smaa, Skaftet 1-leddet (eller 2-leddet), Haanden 
hos fuldvoxne Individer ru dim enter, af tri angular Form. 
Folerne staerkt forlaengede, af en lignende Bygning som 
hos . foregaaende Skegt. De falske Fodder 10-leddede, 
Endedelens lste Led staerkt forlsenget, Randtornerne i 
flere Raekker, saugtakkede. Gangfodderne af middelmaa- 
dig Lamgde, meget spinkle, fint haarede eller glattc, 
2det Hofteled hos Hunnen staerkt opblaest, Laarleddet 
hos Hannen med en afrundet Knude ved Basis, Tarsal- 
leddet kort eller maadeligt forkenget, Fodleddet lineaert, 
ikke krummet, Endekloen forkenget, uden Bikloer. De 
ydre rEgmasser forholdsvis smaa, iEggene faa og af be- 
quite faintly bent, and a little tumeficated in its basal 
part. Both joints are closely beset with short hairs, whilst, 
on the other hand, real marginal spines arc absent. The 
terminal claw is relatively short, scarcely more than Vs 
as long as the propodal joint, and without trace of aux- 
iliary claws. 
The outer egg-masses (see fig. 1 b), which are usually 
secured to the 4th joint of the false legs, are irregularly 
globular in form, and contain a limited number of medium- 
sized ova enveloped in a thin common membrane. 
The colour of the body is more or less distinct yel- 
lowish, with dark brown, transparent intestinal system. 
But most commonly the animal is so densely covered 
with mud and other foreign substances that the colour is 
very difficult to detect. 
Occurrence. I have observed this peculiar Pycno- 
gonid quite occasionally, at 3 different places on the Nor- 
wegian coast viz. at Christianssund, at Valdersund north 
of the Trondhjem Fiord, and at Kvalo on the coast 
of Nordland; depth 50 — 100 fathoms. On the North 
Atlantic Expedition a single specimen was taken in the 
ocean between Finmark and Beeren Island (Stat. 290) at 
a depth of 191 fathoms. I have had an opportunity, 
besides, of examining a single specimen taken in the Kara 
Sea, on Nordenskj bid’s Expedition. 
Distribution. The species is first described by Kroyer 
from Greenland, and subsequently recorded by Jarzynsky 
from the Munnan Coast, also by Dr. Hansen from the 
Kara Sea. It must, according to that occurrence, be in- 
dubitably regarded as a genuine Arctic form. 
Gen. 13. Ascorhynchus, G. O. Sars. 1876. 
Generic Characters. Body narrow and elongated, 
with sharply defined segments and widely separated lateral 
processes. Cephalic segment with elongated neck and 
claviformly expanded frontal part; the cervical processes 
indistinct. Caudal segment particularly narrow, cylin- 
drical. Ocular tubercle of variable form, usually with- 
out visual elements. Proboscis of considerable size, al- 
most piriform, and more or less folded in under the 
body, scape very short. Chelifori particularly small, scape 
single-jointed (or 2-jointed), hand in full-grown individuals, 
rudimentary, triangular in form. Palpi greatly elongated, 
of similar structure as in the preceding genus. False legs 
10-jointed, 1st joint of the terminal part greatly elongated, 
marginal spines in several series, serrated. Ambulatory 
legs of medium length, vei’y slender, finely setous or smooth, 
2nd coxal joint in female, greatly expanded, femoral joint 
in male with a rounded nodule at the base, tarsal joint 
short, or only slightly elongated, propodal joint linear, not 
bent, terminal claw elongated, without auxiliary claws. 
The outer egg-masses relatively small, the ova tew in 
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