71 
stiller Haanden oiler Saxon og er meget bevsegeligt for- 
bunden mod det foregaaende Led, er enormt udviklet og 
la'ngere end de 2 foregaaende Led tilsammen samt i 
s >t basale Parti stserkt opsvulraet for at kunne opt age de 
sfcorke divergerende Muskelknipper. der tjener til den be- 
' ;j 'gelige Fingers Adduction, og bvis Udspring frembringer 
b aa ben evre stserkt convexe Del af Haanden en eiendom- 
niebg facetteret Tegniug. Fingrene er sserdeles lange. Isengere 
eiu ' Palinen, og ender i skarpe Spidser, der krydser hin- 
anden, naar Saxon er lukket. Den indre Kant at begge 
biugre er regelmsessigt saugtakket (se Fig. 18) indtil ben- 
im °d Spidsen, som er ganske glat. Den ubevaegelige Finger 
* 1 n °"et bredere end den bevsegelige og liar mod Enden i 
n indre Kant 2 korte Borster, i den ydre Kant 3 lig- 
111 n de og ved Basis en enkelt saadan. 
2ndet Fodpar (Fig. 20) bar den for Familien Apseu- 
( bdai characteristiske Bygning, der synes at gjdre dem tor- 
tr *nbgt skikkede som Graveredskaber. De er noget lamgere 
eil d lste Par, men forholdsvis smsekrere og bar de ydre 
baa] stserkt sammentrykte fra Siderne og bevmbnede med 
s t<erke Torner. Basalleddet, som mangier ganske Exopodit, 
ev &ke maerkeligt indknebet ved Basis, men af nogenlunde 
dylindrisk Form og naisten no gent. 2det Led er vistnok 
•Heget bdet, men dog langt tydligere fremtnedende end 
samme p aa lste Par. 3die Led er omtrent balvt saa langt 
s °ni Basalleddet og foruden med en Del simple Bprstei 
b'-\ mbnet med en stserk Torn ved Enden i den indre Kant, 
dde Led er meget betydelig liengere og bliver mod Enden 
s «ccessivt bredere og mere sammentrykt; dets ydre Band 
11 glat og kun ved Spidsen bevsebnct med en steerk Torn, 
d ( u indre Band er derimod l'orsynet med en Bad at Borstei 
i det forreste Parti desuden med 3 sserdeles stserke 
^ oiner, der er faestede til sseregne Afsatser. 5te Led er 
: 'lt> skiveformigt og bevmbnet med 8 stserke Torner. hvoraf 
b udgaar fra den indre Band, 2 fra den ydre og 1 Ira 
Spidsen. Denne sidste er betydelig stprre end de ovrige 
^ i den indre Kant tint tandet; den torestiller egentlig 
Endeleddet (Dactylus). 
De 5 folgende Fodpar (Fig 21, 22, 24) er at meget 
^'gere Bygning og forestiller de egentlige Gangfpdder. 
( bestaar ligesom de 2 foregaaende Par af 5 Led for- 
R den den tynde og meget beviegelige Endeklo. At disse 
11 Basalleddet omtrent saa langt som alle de Ovrige til- 
"ammen. De 2 forste Par bar en lignende Betning som 
ax- og Gravefedderne. idet Endekloen vender nedad og 
)R gtil, medens de 3 sidste i Begelen bar en modsat Bet- 
I sin Bygning viser de forpvrigt indbyrdes stor ( )vei- 
eusstemmelse, skjpndt der ved noiere Undersogelse lader 
paavise en Del mindre fremtrmdende Differentser. De 
2 toi 'reste P ar ( se Fig. 21) er saaledes rigeligere bprste- 
•esatte end de ovrige, og de 2 folgende (Fig. 22) udmankei 
compressed from the sides, and on the lower, or inner, margin 
furnished with 4 strong bristles. The remaining part of 
the leg, which represents the hand, or chela, and is very 
flexibly connected with the preceding joint, attains an 
enormous development, and is longer even than the 2 pre- 
ceding joints taken together: moreover, it has the basal 
part considerably swollen, for the reception of the widely 
diverging fascicles of muscles that serve for the movable 
fingers adduction, and whose origin produces on the upper, 
extremely convex portion ot the hand a peculiar, areolated 
appearance. The fingers are remarkably long — longer than 
the palm — and terminate in acute points, that cross one 
another when the chela is shut. The inner margin of both 
fingers is regularly serrate (see fig. 18) to within a short 
distance from the point, which is quite smooth. The im- 
movable finger is somewhat broader than the movable one, 
and lias toward the extremity, on the inner margin, 2 
short bristles, on the outer margin 3, of a similar kind, and 
at the base one such bristle. 
The 2nd pair of legs (fig. 20) exhibit the structure 
characteristic of the family Apseudidm. that would appear 
to render them admirably adapted to serve as fossorial 
organs. They are somewhat longer than the 1st pair, but 
comparatively more slender, and have the outer joints greatly 
compressed from the sides, as also armed with strong spines. 
The basal joint, on which the cxopodite is entirely wanting, 
does not appear much constricted at the base, but has a, 
well-nigh cylindrical form, and is almost naked. The 2nd 
joint is indeed very small, but far more prominent than 
that corresponding to it on the 1st pair. The 3rd joint 
is about half as long as the basal joint, and has. exclusive 
of a number of simple bristles, a strong spine at the ex- 
tremity, on the inner margin. The 4th joint is very much 
longer, and becomes toward the extremity gradually broader 
and more compressed; its outer margin is smooth, and at 
the point armed only with a strong spine ; the inner margin 
has, on the other hand, a row of bristles, and on the an- 
terior portion also 3 exceedingly long spines, attached to 
special, ledge-like projections. The 5th joint is ovato-discoid, 
and armed with 8 strong spines, 5 of which proceed from 
the inner margin. 2 from the outer, and I from the point. 
The apical spine is considerably larger than the others, 
and finely dentate along the inner margin; it represents, 
strictly, the terminal joint (dactylus). 
The 5 succeeding pairs of legs (figs. 21, 22, 24) are 
much more feeble in structure, and represent the true pereio- 
poda. They consist, like the 2 preceding pairs, of 5 joints, 
exclusive of the slender and very movable terminal claw. 
Of these, the basal joint is well-nigh as long as all the 
others taken together. The 2 first pairs have the same 
direction as the chelipeds and fossorial legs, the terminal 
claw turning downward and backward, whereas the 3 last 
take as a rule the opposite direction. In their structure, 
they exhibit for the rest very considerable agreement, though, 
on closer examination, a number of slight deviations can 
be shown. The 2 foremost pairs (see fig. 21) are, for in- 
stance, more abundantly furnished with bristles than the 
