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16
end det følgende Segment. Frontaltornerne rykkede nær
sammen, den kravefonnige Udvidning forsynet oventil i
Midten med en kort Indbugtning. Halesegmentet aflangt
ovalt, afstumpet i Enden og til hver Side bevæbnet meden
kort Torn. Øieknuden nøiagtig i Midten af
Hovedsegmentet, høi, konisk tilspidset, de 4 Corneæ forholdsvis smaa,
nærmere Basis end Spidsen. Snabelen niere end halvt saa
lang som det øvrige Legeme og neppe smalere end dette,
svagt udvidet paa Midten. De falske Fødder hos Hannen
omtrent af Legemets halve Længde. 2det Led størst, 5te
Led større end ethvert af de 2 foregaaende og
[efterfølgende. stærkt krummet, sidste Led trekantet, neppe halvt
saa langt som foregaaende, med 2 korte Torner i den indre
Kant. Gangfødderne næsten 3 Gange længere end
Legemet. bevæbnede med spredte Torner af ulige Størrelse.
2det Hofteled længere end de 2 øvrige tilsammen,
Laarleddet dobbelt saa langt som Hofteafsnittet og endende
udad med en konisk med 2 uligelange Torner bevæbnet
Fortsats. lste Lægled kortere end 2det, der omtrent er af
Laarleddets Længde, Tarsalleddet skjævt afrundet,
Fodleddet omtrent 4 Gange længere end bredt, endende udad i
et spidst Hjørne, Inderkanten ved Basis bevæbnet med 5
stærke Torner, de 2 yderste jevnsides stillede. Endekloen
mere end halvt saa lang som Fodleddet, Bikløerne omtrent
halvt saa lange som Endekloen. Legemet gjennemsigtigt,
med Tarmen og dens Sideudvidninger af grøn Farve.
Legemets Længde hos Hunnen 4"’™. Spaudvidde 23""";
Hannen noget mindre.
Bemærkninger. At den ved Norges Kyster
forekommende Fonn er identisk med Montagu’s Art, derom kan
der.neppe være nogen Tvivl, og heller jikke den af Hoek
ved Frankriges Nordkyst undersøgte Fonn synes i nogen
Henseende at skille sig fra vor Art. Da Hoek har taget
sine Exemplarer paa den selvsamme Lokalitet, hvorfra
Grube har sin P. lcevis, og har paavist mindre Differentser
hos ulige udviklede Individer, holder han Grube’s Art for
identisk med sin. ligesom han anser det for sandsynligt, at
den af Hesse som P. inermis opførte Fonn heller ikke er
artsforskjellig. Hvad endelig de to af Dobrn fra Golfen
ved Neapel opførte Arter angaar, saa viser begge saavel
stor Overensstemmelse indbyrdes som med den typiske Art.
Den ene af Arterne, P. charybdæas opgives imidlertid at
være niere end dobbelt saa stor som den anden, P. vulgaris,
der derimod i saa Henseende ganske svarer til vor Art,
med hvilken jeg derfor er tilbøielig til at anse den for
identisk. Philippi’s Endeis gracilis maa ligeledes aabenbart
henregnes til denne Art. Som forskjellige Arter bliver
saaledes kun tilbage P. charybdæiis Dohrn. der forøvrigt,
naar afsees fra dens ualmindelige Størrelse, kun lidet synes
at skille sig fra Montagu’s Art. og P. meridionalis Bohm,
som ifølge sit Findested (Singapoor) vel neppe kan være
identisk med nogen af de europæiske Arter.
Beskrivelse. Legemets Længde hos fuldt udviklede
Hunner er omkring 4"™, med en Spandvidde af 23""".
Hannerne synes som Regel at være noget, skjøndt ikke
meget, mindre end Hunnerne.
Af Fonn er Legemet (se PI. I. Fig. 3, 3 a, 3 c. 3 d)
than that succeeding it. frontal spines near together, the
collar having above in the middle a slight sinus. Caudal
segment oblong-oval, truncate at the extremity, and on
either side armed with a short spine. Oculiferous tubercle
exactly in the middle of the cephalic segment, prominent,
acuminate, the 4 corneæ comparatively small, nearer the
base than the point. Proboscis more than half as long as,
and hardly slenderer than the rest of the body, slightly
expanded in the middle. The false legs in the male about
half the length of the body, 2nd joint largest, 5th joint
larger than either of the 2 preceding or succeeding it.
sharply curved, last joint triangular, scarcely half as long
as the preceding, with 2 short spines on the inner margin.
Ambulatory legs well-nigh thrice the length of the body,
armed with scattered spines, unequal in size, 2nd coxal
joint longer than the 2 others taken together, femoral joint
twice as long as coxal section, and terminating
outwards in a conical process, armed with 2 spines of
different length, 1st tibial joint shorter than 2nd, the
latter about as long as femoral joint, tarsus obliquely
rounded, propodus about 4 times longer than broad,
terminating outwards in a sharp corner, inner margin furnished
at base with 5 strong spines, the 2 outermost placed side
by side, terminal claw more than half as long as
propodus, auxiliary claws about half the length of terminal claw.
Body translucent, with the intestine and its lateral
expansions of a green colour. Length of body in the female
4""", extent 23"""; male somewhat smaller.
Remarks. - That the form occurring on the coasts
of Norway is identical with Montagu’s species, can hardly
admit of doubt; nor indeed would the animal observed by
Hoek on the north coast of France appear to differ in
any respect from the present species. Hoek having taken
his specimens in precisely the same locality whence Grube
obtained his P. J wis. and having shown too minor
differences to characterise unequally developed individuals, he
holds Grube’s species as identical with his own, regarding
moreover as probable that P. inermis, established by Hesse,
is not either specifically distinct. Finally, as to the two
species established by Dohrn from the Bay of Naples,
both exhibit close agreement alike individually and with the
typical species. One of the species, P. cliarybdæus, is
stated however to be more than’ double the size of the
other, P. vulgaris, which in that respect agrees exactly
with our species, with which therefore I am disposed to
consider it identical. Philippi’s Endeis gracilis must
likewise obviously be referred to that species. Hence, as
distinct species we have left only P. charyhdæus Dohrn, which,
apart from its remarkable size would appear to differ but
little from Montagus’s form, and P. meridionalis Bohm.
that, judging from its habitat (Singapoor), can hardly lie
identical with any of the European species.
Description. — The length of the body ill fully
developed females reaches about 4""", with an extent of 23""".
The males would seem as a rule to be somewhat, though
not much, smaller than the females.
In form (see Pl. I. figs. 3. 3 a, 3 c. 3 d) the body is
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