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.
11
Wyville Tbmsom forfattede Skrift "The Depths of the Sea"
under Benævnelsen Amathia Carpenteri.
Nylig er samme Form under den franske Expedition
fundet meget almindelig paa de større Dyb i Biscayerbugten.
De to under vor Expedition erholdte Exemplarer
optoges i Trawlnettet circa 20 Mil udenfor vor Vestkyst
(Ståt, 10) fra et Dyb af 220 Favne.
Dens hidtil bekjendte geografiske’Udbredning strækker
sig saaledes igjennem circa 20 Bredegrader. Hvis
Stimp-sons Art skulde vise sig at være identisk med vor. bliver
Udbredningen selvfølgelig endnu betydelig større.
Overalt er den kun fundet paa Dybder over 100
Favne, og den er derfor at betragte som en ægte
Dybvands-form, noget, der ogsaa paa Forhaand vil kunne sluttes af
enkelte Organisationsforhold, navnlig de lidet udviklede Øine
og disses lyse Pigment.
De physiske Forhold, hvorunder den forekommer, synes
endelig at vise, at den er en niere sydlig Form, der alene
tilhorer den tempererede Area, men er ganske fremmed
for den kolde.
Sir Wyville Thomson’s well-known work, "The Depths of
the Sea," under the name of Amathia Carpenteri.
A short time since, the same form was met with on
the French Expedition, occurring very abundantly
throughout the great depths in the Bay of Biscay.
The two specimens obtained oil the Norwegian
Expedition were brought up in the trawl-bag, about 20 miles
off the west coast of Norway (Ståt. 10), from a depth
of 220 fathoms.
Hence, its geographical distribution as hitherto known
comprises about 20 degrees of latitude. Should Stimpson’s
species prove to be identical with ours, the distribution is
of course much more extensive.
In every locality, this crustacean has been met with
in depths exceeding 100 fathoms, and must therefore be
regarded as a true deep-sea form, which could, indeed, be
presumptively inferred from certain characteristics of
organization, in particular the slight development of the eyes
and their light pigment.
Finally, the physical conditions under which the animal
occurs would apparently distinguish it rather as a southern
form, exclusively belonging to the temperate and wholly
unknown in the cold area.
Stibordo Anomtira.
Tribus Pterygura.
Fam. Paguridæ.
Gen. Etipagnrxis, Brandt. 1851.
Middendorff Sibirische Reise.
2. Eupagurus tricarinatus. (Norman).
(PI. I, Fig. S—10).
Syn: Pagunia tricarinatus, Norman, Last Report on dredging among
the Shetland Isles. Report of the British Association for the
Advancement of Science for 18(iS, p. "264.
Artseharaeteristik. Legemet temmelig undersætsigt,
besat med spredte Børsteknipper. Panderauden i Midten
kun lidet fremspringende, øinene aflangt kølleformige,
kortere end Panderanden. Fangarmene meget ulige,
haarede; høire Arm meget større og kraftigere end venstre
med 5te Led (Vristen) temmelig tykt og tæt besat med
tornformige Tuberkler. Haanden bredt oval med 3
Længde-kjøler, hvoraf de to ydre indtager Kanterne og er
regelmæssigt og grovt tandede, medens den 3die løber langs ad
Midten af den øvre Finde og er stumpere end de to øvrige.
Haandens Overflade mellem Kjølerne tydeligt indhulet og
kun forsynet med faa og stumpe Knuder; Fingrene neppe
Subordo Anomura.
Tribus Pterygura,
Fam. Paguridæ.
Gen. Eupagiirus, Brandt. 1851.
Middendorff Sibirische Reise.
2. Eupagurus tricarinatus, (Norman).
(PI. I, figs. S—10.)
Syn. Pagurus tricarinatus, Norman, Last Report on dredging among
the Shetland Isles. Report of the British Association for the
Advancement of Science for 1S(18, p. 2G4.
Specific Character. — Body comparatively robust,
beset with scattered fasciculi of bristles. Margin of front,
in the middle, but slightly projecting. Eyes oblong
clavi-form. shorter than the frontal margin. Chelipeds very
unequal, ciliated; right arm much larger and more
powerfully developed than left, with the 5th segment (the
wrist) comparatively thick, and densely beset with spiniform
tubercles; hand broadly oval, with 3 longitudinal carinre, of
which the 2 outer ones occupy the edges and are regularly
and coarsely dentate, whereas the 3rd extends along the
middle of the upper surface and is more obtuse than
the two others. Surface of hand between tile carinæ
2*
<< prev. page << föreg. sida << >> nästa sida >> next page >>
