35 
Kanterne. Sidste Led (Fig. 1 e) ender stumpt tilrundet, 
uden Spor af nogen Endeklo; det bserer 9 at de oven- 
nsevnte lamellefonnige Torner, hvorat den yderste er storst. 
Gangfodderne er (se Fig. 1) af spinkel Form, omtrent 
3 1 / 2 Gang hen gore end Lege met og kun sparsomt borste- 
besatto. Af dc 3 Ilofteled er det midterste stserkt I'orlseuget, 
omtrent dobbelt saa langt som de 2 ovrige tilsammen, og 
noget kalleformigt opsvulmet i Enden, kvor den yd re Kjons- 
aabning er beliggende. Laarleddet er bos Hnnnen (se 
Fig. 1) ofte sserdeles stserkt opsvulmet paa Mid ten, eller 
nsesten tenformigt, paa Gnuid af de i det indre sig udvik- 
lende /Eg, hvoraf de 3 eller 4 midterste lean opnaa en 
meget anselig Storrelse (se Fig. 1 f). late Lsegled er ad- 
skilligt kortere end Laarleddet og noget indknebet ved Ba- 
sis. Derinmd er 2det Lrngled vel saa langt som bint Led 
og at lineser Form. Det at Tarsal- og I odleddet dannede 
terminale Afsnit af Foden er forboldsvis kort, neppe */ 3 saa 
langt som 2det Lrngled, men sserdeles bevsegeligt forbundet 
med dette Led og minder idetbele i sin Structur om SI. 
Phoxicbilus. Tarsalleddet (se I ig. 1 g) er yderst lidet, at 
triangulser Form, og bar i lnderkauten en stserk lorn foi- 
uden en Del ssedvanlige Burster. Fodleddet er kraltigt ud- 
viklet og noget krummet samt i lnderkauten bevsebnet med 
stserke Torner, hvoraf navnlig de 5 bagerste udimerker sig 
ved betydelig Storrelse. Ved noiere Undersogelse viserdisse 
sidste sig egentlig at vsere ordnede i 2 Bader, hvoraf den 
ene indeliolder kun 2, den anden 3 Torner. Langs Yder- 
kanten og ved Spidsen bserer dette Led desuden en Del 
tpm mi dig lange og tynde Borster. Endekloen er forboldsvis 
krattig og stserkt krummet, dog neppe mere end halvt saa 
lang som Fodleddet. Den bserer ved Basis fortil 2 vel ud- 
viklcde Bikloer, mere end halvt saa lange som solve Kloen. 
De til de falske Fodder bos Hannen fsestede A5g er 
(se Fig. 1 a) forboldsvis meget store, kugleformige, og faa i ; 
Antal, ialmindeligbed omkring 6 Stykker paa liver hod. 
De er fsestede sserskilt til det stserkt forlsengede 5te Led, 
uden som bos de fleste ovrige Pyenogonider at vajre om- 
givne af nogen fselles Ombylningsmembran. 
Dyret er i levende Tilstand meget gjennemsigtigt og 
nsesten farvelost. Dog tindes i Regelen ved Enden ef hvert 
Led paa Gangfodderne afsat et opakt, kridhvidt Pigment, 
der ved gjennemfaldende Lys ser morkt ud og ghei hod- 
derne et mere eller mindre udprseget tvseibaandet Udseende. 
Forekomst. Jeg bar taget denne Art ikke sjelden 
ved vor Sydkyst, f. Ex. ved Risoer og Arendal, paa for- 
boldsvis grundt Vand mellem Alger og Hydroider. Den 
forekommer ogsaa af og til ved vor Vestkyst (fetavanger) og 
gaar nordlig lige op til ljoto i Nordland. 
Udbredning. Foruden ved Norge er Arten obser- 
veret ved de britiske 0er (Johnston 0 . fl.), Danmark (Han- 
sen), Holland og Nordkysten af Frankrige (Hoek), endelig 
ved Gstkysten af Nordamerika, bvis, som jeg formoder, 
delicately indented or, as it were, ciliated. The last joint 
(fig. I e) ends obtusely rounded, without the slightest trace 
of°a terminal claw; it bears 9 of the above-mentioned la- 
melliform spines, the outermost being the largest. 
The ambulatory legs (see fig.l) are slender in form, about 
3 1 /-. times as long as the body, and but sparingly beset 
with setse. Of the 3 coxal joints, the mesial one is veij 
considerably produced, measuring about twice the length of 
the two others taken together, and somewhat claviform ex- 
panded at the extremity, where the exterior sexual ori- 
fice is located. The femoral joint in the female (see tig. 1 ) 
is often very much swollen in the middle, or almost fusiform, 
owing to the eggs developing within, ot which the 3 or 4 mid- 
most can attain a very considerable size (see fig. 1 !)■ 1 he 
1st tibial joint is a good deal shorter than the femoral joint 
and slightly constricted at the base. On the other hand, the 
2nd tibial joint is rather longer than the 1st, and of linear 
form. The, terminal division of the leg formed by the tarsal 
and propodal joints, is comparatively short, hardly t j 3 as 
long as the 2nd tibial joint, but very flexibly connected 
with that joint, and, on the whole, in its structure calls to 
mind the genus Phoxicbilus. The tarsal joint (see fig, 1 g) 
is exceedingly small, triangular in form, and has on the 
inner edge a strong spine besides a number of the usual 
setfe. The propodal joint is powerfully developed and slightly 
curved, also on the inner margin armed with strong spines; 
the 5 hindmost of which are especially distinguished by their 
very considerable size. On closer examination the latter are 
found to be arranged in 2 series, the one with 2, the other 
with 3 spines. Along the outer margin and at the point, 
this joint bears, besides, a number of rather long, fine 
setae.' The terminal claw is comparatively powerful and 
strongly curved, but hardly more than half as long as the 
propodal joint. It has at the base, in front, 2 well developed 
auxiliary claws, measuring more than half the length of the 
claw itself. 
The eggs attached to the false legs in the male (see fig. 
1 a) are, comparatively, very large, globular, and few in 
number, as a rule about 6 on each leg. They are attached 
separately to the greatly produced 5tli joint, without, as in 
most other Pycnogonids, being surrounded by a common 
enveloping membrane. 
In the living state the animal is very pellucid and al- 
most colourless. As a rule, however, there may be observed, 
at the extremity of each joint of the ambulatory legs, an 
opaque chalky white pigment deposited, which by transmitted 
light acquires a darke shade, and gives to the legs a more 
or less prominent transversally banded appearance. 
Occurrence. I have taken this species, not infre- 
quently, off the south-west coast of Norway, e. g. at Risoer and 
Arendal, in comparatively shallow water, among algse and 
hydroidse. It occurs, too, now and again, off our west coast 
(Stavanger), and extends as far north as Tjoto in Nordland. 
Distribution. Besides off Norway, the species has been 
met with off the British Islands (Johnston and others), Den- 
mark (Hansen), Holland and the north coast ot France 
(Hoek), and, finally, on the east coast of North America, if 
