Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
135
Farven af saavel Hannen som Hunnen er ensformig
lys gulagtig og saa gjennemsigtig at Here af de indre
Organer tydeligt skimtes igjennem Huden, navnlig den med
mørke Contenta fyldte Tarmkanal.
Legemets Længde er indtil 33’"™, en i Sammenligning
med de øvrige Arter af Slægten aldeles colossal Størrelse.
Den overgaar endog i denne Henseende kjendeligt
Mun-nopsis typica, der hidtil har været anseet som den mest
kjænipemæssige Form i denne Familie.
Forekomst og Udbredning. Exemplarer af denne
anselige Art er under vor Expedition indsamlede paa ikke
mindre end 7 forskjellige Stationer. Da imidlertid de stærkt
forlængede 2det Par Følere og Gangfødderne er yderst fragile
og derfor meget let brækkes, er saagodtsom alle de
indsamlede Exemplarer mere eller mindre incomplette. Alene
et eneste Individ (det her afbildede) lykkedes det mig, ved
at anvende den yderste Forsigtighed, at faa isoleret med
samtlige Lemmer i Behold. Af de omtalte Stationer ligger
3 (Ståt. 33, 124. 251) i Havet udenfor vore Havbanker, 2
i Havet Vest af Beeren Eiland og tie 2 øvrige Nordvest
af Spitsbergen; Dybden fra 260 til 658 Favne. Alle
Stationer alene med Uudtagelse af den nordligste (Ståt. 363)
tilhorer dell kolde Area.
Artens for Tiden bekjendte Udbredningsfelt er
herefter det vestlige Afheld mod Nordhavets store Dyb fra
den 63de til den 80de Bredegrad. Ifølge Meddelelse fra
Dr. Stuxberg forekommer den imidlertid ogsaa i det
sibiriske Ishav.
The colour alike of the male and the female is a
uniform light-yellow, and so translucent that several of the
inner organs can be plainly discerned shining through the
skin, ill particular the intestinal canal, with its dark
contents.
The length of the body reaches 33™’", a truly colossal
size compared with the other species of the genus. In
this respect it appreciably exceeds even Mitnnopsis typica,
hitherto held to be the largest form of the family.
Occurrence and Distribution. — Specimens of tilis
gigantic’ species were collected on the Norwegian Expedition
at not less than 7 different Stations. Meanwhile, the 2nd,
greatly produced, pair ol antennæ and the equally elongate
ambulatory legs being exceedingly fragile, and therefore
easily broken, well-nigh all the examples obtained were in
a more or less defective state. Only one individual (that
represented here) was I enabled, by the most careful
handling, to isolate with all its parts intact. Of the said
Stations, 3 (Stats. 33. 124. 251) lie off the great outer
banks of Norway. 2 in the tract of ocean west of Beereu
Eiland, and the 2 others north-west of Spitzbergen. Depth
ranging from 260 to 658 fathoms. All the Stations, save
the most northerly (Ståt. 363), are in the cold area.
Hence, the tract throughout which the species^ is at
present known to be distributed, comprises the western slope
shelving down towards the great depths of the Northern
Ocean, from the 63rd to the 80th parallel of latitude.
According to a communication from Dr. Stuxberg, the form
also occurs in the Siberian Polar Sea.
Tribus 5. Epicarides.
Bemærkninger. De herhen horende Isopoder har af
de tleste Zoologer været stillet sammen med eller ialfald
ved Siden af den til Gruppen Flabellifera hørende Familie
Oymothoidce, vel især paa Grund af den overensstemmende
parasitiske Levevis. Fritz Muller har imidlertid1 vist, at
de i Virkeligheden i sin Organisation kun viser meget liden
Overensstemmelse med hin Familie, hvorimod han er mere
tilbøielig til at stille dem nærmest ved de saakaldte
Land-isopoder (Onisaderne). Rigtigst synes det mig af mange
Grunde at være at henføre de her omhandlede Isopoder til
ell egen større Afdeling eller Tribus, for hvilken den af
Milne Edwards foreslaaede Benævnelse, Epicarides, bør
bibeholdes.
1 Brochatücke zar Katurgesehichte .tor Bopyriden. l lenaischr
Zeitschrift, Bd. VI i.
Tribus 5. Epicarides.
Remarks. — The Isopods belonging to this division
have by most zoologists been classed either under, or at
least in immediate connexion with, the family Cymothoidæ,
belonging to the group Flabellifera. chiefly, one would
imagine, from the parasitic nature common to the said forms.
Meanwhile, Fritz Midler1 has shown, that, in their
organisation, they exhibit but very slight agreement with that
family; indeed, lie is rather disposed to regard them as
approximating closest the so-called land-Isopods (Oniscoida).
For divers reasons, however, the Isopods treated of here
can, ill my judgment, lay claim to be classed within a
separate comprehensive division, or tribe, for which the
designation, Epicarides. suggested by Milne Edwards, should
certainly be retained.
1 Bruchstüeke zur N’aturgescbichte del- Bopyriden (Jenaische
Zeitschrift, Bd. VI .
<< prev. page << föreg. sida << >> nästa sida >> next page >>
