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199
Legemets halve Længde, Skaftets 3die Led ragende frem
foran Hovedets Spids, Svøben kortere end Skaftet, lu-leddet.
De 2 forreste Fodpar smaa og svage, af sædvanlig
Bygning. De 2 følgende Par med de 2 sidste Led indbyrdes
omtrent af ens Længde, Endekloen betydelig kortere end
disse tilsammen. 6te Fodpars Hofteled med en afrundet
Lap paa den indre Side ved Basis. Sidste Fedpar kort
og undersætsigt, med Hofteleddets bagre Udvidning særdeles
stor og naaende ud over 3die Led, sidste Led meget smalt,
lineært. 2det Par Halefødder ualmindelig smaa; sidste Par
lin^l forholdsvis korte og næsten nøgne Grene.
Halevedhænget temmelig lidet, i Enden afstumpet og kløvet til
foran Midten. Farven hvidagtig. Længden 8" .
Findesteder. Ståt. 31. 124. 137. 200, 251, 362.
Bemærkninger. Denne lille Art kjendes fra de
tidligere bekjendte ved de usædvanlig smaa Folere, Mangelen
af Øine samt ved den betydelige Størrelse af den
Udvidning, som sidste Fodpars Hofteled danner bagtil.
Beskrivelse. Legemet er (se PI. XVI. Fig. 5)
ligesom hos foregaaende Art noget sammentrykt, og udeirnogen
tydelig dorsal Kjøl, idet Byggen overalt, ogsaa fortil, er
jevnt hvælvet.
Hovedet er omtrent saa langt som de 3 forreste
Segmenter tilsammen og afsmalnes noget mod Enden, som er
lidt skraat afskaaret. Det er oventil jevnt hvælvet, uden
Spor af nogen Kjøl.
De 4 forreste Par Epimerer er forholdsvis mindre
end hos foregaaende Art og mangler det tandformige
Fremspring. lste Par er noget udvidet nedad og her jevnt
afrundet; de 2 følgende Par er derimod afstumpet i Enden;
4de Par danner bagtil et skarpt fremspringende Hjørne.
3die Bagkropssegments Sideplader er ikke vinklet bagtil
som hos foregaaende Art, men uddraget i en smalt tilrundet,
tungedannet Lap. Det følgende Segment er oventil jevnt
hvælvet. \
Øine synes ganske at mangle, ligesom hos
foregaaende Art. ^
lste Par Følere (Fig. 5 a) er meget smaa, neppe
længere end Hovedet og de 2 forreste Segmenter tilsammen.
Skaftets lste Led er kort, men temmelig tykt; 2det
derimod pludselig betydelig smalere og længere; 3die som
sædvanlig lidet og ikke skarpt adskilt fra Svøben. Denne er
omtrent af Skaftets Længde og kun sammensat af 7 Led.
2det Par Folere (se Fig. 5) er mere end dobbelt saa
lange som lste Par, uden dog at opnaa Legemets halve
Længde. Af Skaftets Led er de 2 förste, som hos
foregaaende Art ganske skjulte; 3die rækker noget frem foran
than twice as long as 1st, yet attaining scarcely half the
length of body, 3rd joint of peduncle projecting beyond
point of head; flagellum shorter than peduncle, ten-jointed.
The 2 anterior pairs of legs — exhibiting usual structure,
small and feeble. The 2 succeeding pairs have the 2
last joints about equal in length, terminal claw
considerably shorter than both of these taken together. Basal
joint of 6th pair of legs with rounded lobe on inner
side of base. Last pair of legs short and thickset, with
posterior expansion of basal joint exceedingly large and
reaching beyond 3rd joint; terminal joint very slender,
linear. Second pair of caudal stylets remarkably small,
last pair with comparatively short and almost naked branches.
Telson rather small, obtuse at extremity, and cleft beyond
the middle. Colour whitish. Length 8""".
Locality. — Stats. 31. 124, 137, 200, 251. 362.
Remarks. — This comparatively diminutive species
may be recognized from all previously known forms by
the unusually small antennæ, its want of eyes, as also the
considerable size of the expansion distinguishing the basal
joint of the last pair of legs posteriorly.
Description. — The body (see Pl. XVI, fig. 5), is
somewhat compressed, as in the preceding species, and
without any distinct dorsal keel, the back being everywhere —
also the fore part — uniformly arcuate.
The head about equals in length the 3 anterior
segments, tapering a little toward the extremity, which is
somewhat obliquely truncate. Above, it is uniformly arcuate,
without the slightest trace of a keel.
The 4 anterior pairs of epimera are comparatively
smaller than in the preceding species, and have no
dentiform projection. The 1st pair are somewhat expanded
below, and evenly rounded off; the 2 succeeding pairs, on
the other hand, are obtuse at the extremity; the 4th pair
form posteriorly a sharp, projecting corner.
The lateral plates of the 3rd abdominal segment are
not angular posteriorly, like those in the preceding species,
but drawn out to a narrow, rounded, linguiform lobule.
The succeeding segment is evenly arched, above.
Eyes, it would appear, entirely absent, as in the
preceding species.
The 1st pair of antennæ (fig. 5 a) are very small,
scarcely at all longer than the head and the 2 anterior
segments taken together. The 1st joint of the peduncle
is short, but rather stout; the 2nd. on the other hand,
becomes abruptly much longer and more slender; the 3rd,
as usual, small, and not distinctly separated from the
flagellum. The latter has about the length of the peduncle,
and consists of 7 articulations.
The 2nd pair of antennæ (see fig. S) are more than
twice as long as the 1st, without however attaining half
the length of the body. Of the joints of the peduncle, the
2 first, as in the preceding species, are entirely concealed;
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