1(1 



Af Lemmer tindes hos Hunnen kun de 4 Par Gang- 

 fødder. Hertil kommer imidlertid hos Hannen et 5te Par, 

 fra Bugsiden af Hovedsegmentet udgaaende Lemmer, de 

 saakaldte falske Fodder (se Fig. 1 f). Derimod er der hos 

 fuldt udviklede Dyr intetsomhelst Spor hverken afSaxlem- 

 mer eller Følere at opdage. 



Gangfødderne (Fig. 1 c) er af temmelig plump og 

 kraftig Bygning, noget kortere end Legemet og bestaaende 

 af det sædvanlige Antal (8) Led. Af de 3 Hofteled ei- 

 det Iste størst og temmelig bredt, især paa sidste Fodpar 

 (se Fig. 1), hvor det ligger tæt ind mod Halesegmehtet, 

 der herved viser sig ligesom indkilet mellem Basis af dette 

 Fodpar. Laarleddet er omtrent saa langt som de 2 sidste 

 Hofteled tilsammen og af en noget uregelmæssig Fonn. 

 med den indre Kant vinkelformigt udbuet paa Midten og 

 den ydre eller ovre Kant gaaende ud ved Enden af Led- 

 det i 2 jevnsides stillede, mere eller mindre tydelige koniske 

 Fremspring. Iste Lægled er lidt kortere end Laarleddet, 

 stærkt indknebet ved Roden og gaar ved Enden paa den 

 ovre Side ud i 2 lignende, men noget mindre Fremspring. 

 2det Lægled er betydelig mindre, noget skraat afskaaret i 

 Enden og viser Antydning til lignende Fremspring som 

 paa de 2 foregaaende Led. Tarsalleddet (se ogsaa Fig. 

 1 d) er meget kort, af trekantet Form og paa Ydersiden 

 næsten ganske dækket af foregaaende Led ; dets indre Kant 

 er bueformigt bøiet og, ligesom en Del af foregaaende Leds 

 Inderkant, tæt hesat med korte, tornformige Børster. Fod- 

 leddet er mere end 3 Gange længere end Tarsalleddet, 

 men betydelig smalere, temmelig stærkt krummet og over- 

 alt omtrent af ens Brede. Inderkanten er noget concav 

 og tæt besat. med lignende korte Børter som paa Tarsal- 

 leddet og ender med en liden smalt afrundet Lap. Ende- 

 kloen er særdeles kraftig, mere end halvt saa lang som 

 Fodleddet og af hornbrun, ofte næsten sort Farve. Den 

 er i sit ydre Parti jevnt krummet og ender med en syl- 

 skarp Spids. Af Bikloer er der ikke det mindste Spor at 

 opdage. 



De falske Fodder tindes, som anført, alene hos Han- 

 nerne. og deres Funetion synes her udelukkende kun at 

 være den at' fastholde den ydre Ægmasse. De er (se Fig. 

 1 f) fæstéde til hver Side under den forreste Del af Ho- 

 vedsegmentet til et lidet afrundet Fremspring, og er i 

 Sammenligning med samme hos andre Pycnogonideer meget 

 smaa og svage, idet de knapt opnaar 1 j i af Legemets 

 Længde. Ved nøiere Undersøgelse (Fig. 1 g) viser de sig 

 at beståa af det samme Antal Led som Gangfødderne og 

 ender som disse med en kraftig Klo; men Længdeforholdet 

 mellem Leddene er meget forskjelligt, De 4 første Led er 

 forholdsvis meget smaa og næsten af ens Længde, hvori- 

 mod de følgende 4 er noget større, navnlig ote og 6te. 

 Langs den indre Kant af Leddene bemærkes nogle meget 

 smaa og uregelmæssigt fordelte Torner af ganske simpel 

 Form (Fig. 1 h). Endekloen er omtrent saa lang som det 



usual triangular form, though wanting distinctly developed 

 lip-plates. 



Of limbs, occur in the female only the 4 pairs of am- 

 bulatory legs. The male however is furnished with a 5th 

 pair, the so-called false legs (see fig. 1 f), issuing from the 

 ventral side of the cephalic seginent. On the other hand, 

 in fully developed animals no trace can be detected of 

 either chelifori or pal] is. 



The ambulatory legs (fig. 1 c) are rather clumsy and 

 powerful in structure, somewhat shorter than the body, 

 and composed of the usual number (8) of joints. Of the 



3 coxal joints, the first is the largest, and rather broad, 

 more especially on the last pair of legs (see fig. 1). where 

 it lies close up to the caudal segment, which has thus the 

 appearance of being wedged in between the base of this 

 pair of legs. The femoral joint is about as long as the 2 

 last coxal joints tåken together and of a somewhat irregu- 

 lar form. with the inner margin bent out angularly in the 

 middle and the outer or upper margin running at the ex- 

 tremity of the joint into 2 parabel, more or less distinctly 

 conic projections. The Ist tibia] joint is a trille shorter 

 than the femoral, very considerably instrieted at the base, 

 and di vides at the extremity on the upper side into 2 

 similar, but somewhat smaller projections. The 2nd tibial 

 joint is a good deal smaller. cut off somewhat obliquely at 

 tlie extremity. and indicates the occurrence of similar pro- 

 jections, as in the 2 preceding joints. The tarsus (see fig. 

 1 d) is very short, triangular in form. and on the outer side 

 well-nigh wholly covered by the preceding joint; its inner 

 margin is arched and, as with part of the inner margin of 

 preceding joint, densely beset with short spiculiform bristles. 

 The propodus has more than 3 times the length of the 

 tarsus, but is considerably narrower, very much curved, and 

 everywhere of well-nigh the same breadth. The inner margin 

 is a little concave, densely beset with short bristles similar 

 to those on the tarsus. and terminates in a small, narrowly 

 rounded lobe. The terminal claw is rema.rkablv powerful. 

 more than half as long as the tarsus. a nil of a horny 

 brown, otten well-nigh black colour. It has the outer pari 

 uniformly curved and terminates in a sharp point. Of 

 auxiliary claws not a trace can be detected. 



The false feet occur, as stated above, in the males 

 only; and their funetion would seem to be exclusively that, 

 of grasping the outer egg-mass. They are affixed (see 

 fig. 1 f) on either side, under the foremost part of the 

 cephalic segment, to a small rounded projection,, and are, 

 as compared with those limbs in other Pycnogonids, very 

 small and feeble, attaining scarcely one-fourth of the length 

 of the body. On closer examination (fig. 1 g), they are 

 found to have the same number of joints as the ambu- 

 latory legs, and, like those limbs, they terminale in a powerful 

 claw; but as to length, the proportion between the joints is 

 rather different. The 4 first joints are comparatively very 

 small and alm ost equal in length, whereas the following 



4 are somewhat larger, in particular the 5th and 6th. 

 Along the inner margin of the joints extend a few very 

 small and irregularly distributed spines of quite a simple 



