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23
rende til hvad Tilfældet er paa de egentlige Födder.
Samtlige Led er mere eller mindre tæt borstebesatte. Navnlig
er det yderste Afsnit tæt haaret og i Kanterne med visse
Mellemrum desuden bevæbnet med Knipper af tynde Tomer.
1ste Fodpar (Fig. 16) er neppe længere end 3die Par
Kjævefødder, men langt kraftigere bygget. Det er som de
følgende Par enkelt, uden ydre Vedhæng ved Basis, og
bestaar, den bevægelige Finger iberegnet af 7 vel
begrændsede Led, hvoraf de 3 förste er ganske korte. 4de Led
forbinder sig med det foregaaende ved en meget skjæv
Articulation og er noget udvidet mod Enden samt af kantet,
næsten prisinatisk Form; den ydre Kant lober fortil ud i
en temmelig stærk tornformig Fortsats og er omkring denne
besat med lange Borster, öte Led er ganske kort, neppe
længere end bredt og meget bevægeligt forbundet saavel
med det foregaaende som efterfølgende; det er paa den
ydre Side tæt haaret og gaar oventil ved Enden ud i 2
stærke Torner. 6te Led eller Haanden er kraftigt udviklet,
ved Basis ligesom opsvulmet, fortil mere og mere affladet
og ogsaa noget bredere. Enden er næsten tvært afskaaret
og danner en skarp, noget buet Kant, imod hvilken den til
det ydre Hjørne fæstede kloformige Finger kan indboies.
Det indre Hjørne er udtrukket til eu skarp lige fortilrettet
Fortsats, der forestiller den rudimentære ubevægelige Finger.
Haanden er ligesom Størsteparten af den øvrige Fod kun
besat med meget korte Haar.
2det Fodpar (Fig. 17) er meget tyndt og svagt bygget,
men lige udstrakt neppe kortere end 1ste. Det bæres
ial-mindelighed slaaet ind under Forkroppen og er derfor
sjelden synligt, naar Dyret sees ovenfra. Af Leddene er
4de og öte længst og danner med hinanden eu mere eller
mindre stærk knæformig Boiniug. 6te Led eller Haanden
er ’neppe bredere end det foregaaende og omtrent halvt saa
langt. Spidsen danner en liden, men puldstændig Sax (se
Fig. 18), paa hvilken dog Fingrene er særdeles korte, idet
de neppe er ’/■> saa lange som Palmen.
3die Fodpar ( Fig. 19) er ubetydelig længere end
foregaaende, men noget kraftigere bygget, navnlig hvad det
basale Afsnit angaar. Det afsmalnes successivt mod Enden,
der er sylformigt tilspidset. Af Leddene er det öte længst.
Det overmaade lille sidste Led eller Endekloen gaar i Flugt
med næstsidste, men er skilt fra samme ved en tydelig
Sutur.
De 2 følgende Par (Fig. 20), der forestiller de
egentlige Gangfødder, er indbyrdes af ens Udseende, omtrent af
foregaaende Pars Længde, men langt kraftigere byggede.
Af Leddene er 4de og (»te længst og omtrent indbyrdes
lige lange og betydelig stotre end öte. Sidste Led er om-
at the point of the last segment can be detected an extremely
minute, though distinctly defined terminal articulation. Hence,
the number of articulations is strictly 7. corresponding to
that on the true legs. All the articulations are more or
less closely beset with bristles. The outermost section,
in particular, is densely clothed with hairs, and at
intervals furnished along the edges with bunches of slender spines.
The 1st pair of legs (fig. 16) are scarcely at all
longer than the 3rd pair of maxillipeds. Like the
following pairs, they are simple, having no exterior appendages
at the base, and consist, inclusive of the moveable dactylus,
of 7 distinctly separated segments, of which the 3 first
are exceedingly short. The 4th segment is connected with
the preceding by means of an extremely oblique
articulation, and is somewhat expanded towards the extremity,
with an angular, almost prismatic form; the outer margin
extends forward (anteriorly) as a rather prominent
spini-form projection, beset round the latter with long bristles.
The 5th segment is quite short, scarcely longer than broad,
and very flexibly connected alike with the preceding and
the succeeding segments; on the outer side, it is densely
clothed with hair, and projects at tile extremity, above, into
2 powerful spines. The 6th segment, or hand, is strongly
developed, with the base, as it were, swollen, anteriorly
gradually applanated. and also somewhat broader. The
extremity is weffi®igh truncate, and constitutes a sharp, slightly
arcuate edge, towards which the unguiform dactylus.
attached to the outer corner, admits of bending in. The inner
corner is drawn out into a sharp tooth, directed straight
forwards, which represents the rudimentary immobile tinger.
The hand, like the greater part of the rest of the foot, is
clothed with exceedingly short hairs.
The 2nd pair of legs (fig. 17) are very thin and of
fragile construction, but, fully extended, hardly shorter than
the 1st pair. As a rule, they are carried, doubled up under
the cephalo-thorax, and hence are rarely visible when the
animal is seen from above. Of the segments, the 4th and
5th are the longest, and constitute together a more or
less prominent geniculate flexure. The 6th segment, or
hand, is scarcely at all broader than the preceding, and
about half as long. Its extremity assumes the shape of
a small, but perfectly formed chela isee fig. 18), on which,
however the dactyli are exceedingly short, attaining scarcely
one-third the length ol’ the palm.
’l lie 3rd pair of legs (fig. 19) are but very little
longer than the preceding, of a somewhat more powerful
structure, however, in particular the basal section. They
taper gradually to the extremity, which has an awl-shaped
point. Of the segments, the 5th is the longest. The last,
exceedingly small segment, or terminal claw, projects in a
line with the penultimate, from which, however, it is
separated by a well-marked suture.
The 2 succeeding pairs (fig. 20), which represent the
true ambulatory feet, are similar in appearance, of about
the same length as the preceding pair, but much more
powerful in structure. Of the segments, the 4th and 6th
are the longest, about equal in length, and considerably
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