143 
V 
( 4inene er meget smalt nyreformige oiler mesten linesere 
V straekker sig lodret ned over Siderne af Hovedet i kort 
* stand fra den forreste Rand. Deres Pigment er af en 
' ■ vh sortebrun Parve. 
lste Par Polere er omtrent af samme Lsengde som 
°'edet og lste Forkropssegment tilsammun. Skaftet er 
"° 1 't °S tykt, med l ste Led meget stort, de 2 felgende 
deles korte. Sveben er mesten dobbelt saa lang som 
mltet og sainmensat af cirka 18 Led, hvoraf det lste er 
men neppe Lengere end de 2 fqlgende tilsainmen. 
isveben er stserkt forlaenget, mere end halvt saa lang som 
Vf ‘ bveben og saminensat af 9 Led. 
“det Par Polere er neppe lamgere end lste Par, men 
1( «et tynderc, med Svoben bestaaende af 17 Led. 
ioddernes Bygning synes i alt vaisentligt at stemme 
p Veiens m ed samme lios 8. Vahlii ; dog er de 3 bagerste 
ai ^ ,n L°ldsvis noget mere robuste, med smrdeles bredt, 
118 esten cirkelformigt Hofteled. 
De bagerste Par Halefodder raekker neppe udover det 
)1( gaaende Par og bar Grenene kort lancetformige, uden 
L'delige Berster. 
Halevedhaenget er triangulaert og klovet lige til Midten. 
^ ^ ai- ' en hos det levende Dyr blev ikke npiere uoteret. 
os den merstaaende 8. Vahlii er den meget vakker og 
l0 mefaldende. 
Lsengdon af det storste af de indsamlede Exemplarer 
\ °g den borer saaledes til de storste bekjendte 
Ani phipoder. 
The eyes are very narrow, reniform, or well-nigh linear, 
extending perpendicularly down the sides of the head, at 
a short distance from the anterior margin. Their pigment 
is of a deep dark-brown. 
The 1st pair of antennae about equal in length 
the head and the 1st thoracic segment taken together. 
The peduncle is short and thick, with the 1st joint very 
large, the 2 succeeding joints extremely short. The flagel- 
lum is almost twice as long as the peduncle, and composed 
of 18 articulations, or thereabouts, of which the first is 
the largest, but hardly exceeds in length the 2 succeeding 
ones, taken together. The secondary flagellum is greatly 
produced, more than half as long as the flagellum itself, 
and consists of 9 articulations. 
The 2nd pair of antennae are scarcely at all longer 
than the 1st pair, but much more, slender, with the flag- 
ellum composed of 17 articulations. 
The structure of the legs would appear in all essential 
characteristics to agree with that in 8. Vahlii; the 3 pos- 
terior pairs, however, are somewhat stouter, with the basal 
joint exceedingly broad, almost circular. 
The posterior pair of caudal stylets scarcely reach 
beyond the preceding pair, and have their branches short- 
lanceolate, without distinctly developed bristles. 
The telson is triangular, and cleft to the middle. 
The colour of the living animal was not closely ob- 
served. In the approximating species, 8. Vahlii , it is very 
beautiful and conspicuous. 
Length of the largest specimen obtained 36” !m ; hence 
this form ranks among the largest known Amphipods. 
Forekomst og Udbredning. 2 Exemplarer af denne 
^ avacteristiske Ait erholdtes under Expeditionens sidste 
°gt i den af iskoldt Vand opfyldte Magdalenebay ved 
01 d\ estpynten af Spitsbergen fra et Dyb af 40 — 60 Favne. 
Arten er tidligere observeret foruden ved Spitsbergen 
ve< l Grenland, hvorimod den endnu ikke er antruffon 
ikj C v<>le Kyster, hvor derimod den anden Art S. Vahlii 
j <l er sjelden. Den er derfor uden Tvivl at betragte som 
d gte arktisk eller hoinordisk Form. 
Occurrence and Distribution. — Two individuals of 
this characteristic species were obtained, on the last cruise 
of the Expedition, in Magdalena Bay, an arm of the sea 
filled with ice-cold water, at the north-western extremity 
of Spitsbergen, from a depth of 40—60 fathoms. 
The species had been previously observed, exclusive 
of Spitsbergen, off the shores of Greenland, whereas it is 
not yet known to have been met with at any point on 
the Norwegian coast, a region in which the allied species 
S Vahlii . is by no means rare. Hence the animal must 
unquestionably be regarded as a true Arctic form. 
