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139
melig stort’i Enden noget skraat afkuttet Segment uden
Spor af Vedhæng.
Farven er saavel hos Hunnen som Hannen blegt
gul-agtig; de i Hunnens Æggesæk indeholdte Æg hvidagtige
med et svagt rosenfarvet Skjær.
Længden af Hunnen er 5™"; af Hannen neppe mere
end l’™.
Forekomst og Udbredning. Et enkelt Exemplar af
denne distincte Art. tilligemed den tilhørende Han. blev
under Expeditionen lste Togt taget i Havet udenfor
Stor-eggen (Ståt. 31) fra et Dyb af 417 Favne. Exemplaret
fandtes fastheftet til Rygsiden af Forkroppen hos et
usædvanlig stort Individ af Pseudomma roseum.
Om Artens Udbredning kan selvfølgelig intet med
Bestemthed anføres. Da imidlertid den ovenomtalte Station
tilhorer den kolde Area. er det rimeligt, at den er ell
arktisk Form.
Amphipoda.
Tribus 1. Gammarina.
Fain. I. Lysianassidæ.
Gen. 1. Socarnes,’ Boeck. 1870.
Crustacea amphipoda borealia et arctica.
31. Socarnes bidenticulatus, (Sp. Bate),
i PI. XII. Fig. 1 i.
Lysianaisa lidaiticulata, .Sp. Bate. Aim. & Mag. Nat. Hist, Ser. 3,
T. I. pg. 36-2.
L’isianassa nugax. Sp. Bate. Cat. Amphip. Brit, Mus., pg. Or., Pl. X,
fig. 3, (non Phipps).
Lytiaiutsia Vahlii, Goes, Crust, amphip. Spitsb. No. 2 (es parte*.
Anonyx lidcnticulalns, Miers, Spitsb. Crust. Ann. & Mag. Nat. Hist.
1877, pg. 136.
Artseharacteristik. Legemet ualmindelig liøit og
noget opsvulmet, med de forreste Epimerer [over dobbelt
saa høie som selve Kroppen. Hovedets Sidevinkler tilspid-
’ Jeg følger her foreløbig den af Boeck foreslaaede
Slægtsind-deling. skjøndt jeg er af den Mening, at. man ved en nøiere Revision af
Familien vil finde det nødvendigt at reduceiv noget Slægternes Antal.
clasping legs, of the same character as in the female. The
posterior division of the body consists of a single, rather
large segment, somewhat obliquely truncate at the extremity,
without a trace of appendages.
Colour, alike in the female and the male, a pale yellow;
the eggs in the incubatory cavity of the female whitish,
with a faint rosy tinge.
Length of female 5"m; of male scarcely more than
Occurrence and Distribution. — A single specimen
of this distinct species, together with the male, was brought
up, on the first cruise of file Expedition, in the open sea.
off the Storeggen bank (Ståt. 31), from a. depth of 417
fathoms. This specimen was found attached to the dorsal
side of the anterior division of the body of an remarkably
large example of Pseudomma roseum.
Respecting the distribution of the species, nothing can
of course be stated with certainty. Meanwhile, as the
Station at which the animal was taken lies in the cold
area, it is most probably an Arctic form.
Amphipoda.
Tribus 1. Gammarina.
Fara. I. Lysianassidæ.
Gen. 1. Socarnes,’ Boeck. 1870.
Crustacea amphipoda borcaüa et arctica.
31. Socarnes bidenticulatus, (Sp. Bate),
i Pl. XII. fig. ti.
Lysianaaaa bidenticulala, Sp. Bate. Ann. & Mag. Nat. Hist., Ser. 3,
Vol. 1, ]). 362.
Lysianaaaa nugax, Sp. Hate, Cat. Amphip. Brit. Mus. p. li.".. Pl. X.
fig. 3 (non Phipps i.
Lysianaaaa Vahlii, Goes, Crust, amphip. Spitsb. No. i (ex partei.
Anonyx bidenticulatus, Miers. Spitsb. Crust, Ann. & Mag. Nat. Hist..
1877, p. 130.
Specific Character. — Body remarkably high and
somewhat swollen, with anterior epimera more than double
the height of body. Lateral angles of head acute, projecting
1 I retain for the present the generic subdivision proposed’ l)y
Boeck, though, in my judgment, a closer revision of the family will
show the need of slightly reducing the number of genera.
18*
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