139 
llle lig stort,® i Enden noget skraat afkuttet Segment uden 
8 Por af Yedhaeng. 
Farven er saavel hos Hunnen som Hannen blegt gul- 
a Stig ; de i Hunnens iEggessek indeholdte A3g hvidagtige 
niet * svagt rosenfarvet Skjaer. 
Lamgden af Hunnen er 5 mm ; af Hannen neppe mere 
end \ rar * 
Forekomst og Udbredning. Et enkelt Exemplar af 
distincte Art, tilligemed- den tilliprende Han, blev 
l| uder Expeditionens lste Togt taget i Havet udenforStor- 
(Stat. 31) fra et Dyb af 41 7 Eavne. Exemplaret 
andtes fastheftet til Rygsiden af Eorkroppen bos et usasd- 
'anlig start Individ af Pseudonma roseum. 
Om Aliens Udbredning kan selvfalgelig intet med 
Bestemthed anfoi •es. Ha imidlertid den ovenomtalte Station 
ilhorer den kolde Area, er det rimeligt, at den er on 
arktisk Form. 
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”™; of male scarcely more than 
^ mm 
Occurrence and Distribution. — A single specimen 
of this distinct species, together with the male, was brought 
up. on the first cruise of the Expedition, in the open sea, 
off the Storeggen bank (Stat. 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. 
Amphipoda. 
Tribus 1 . Gammarina. 
Fain. 1 . Lysianassidse. 
Gen. 1. Socarnes, 1 Boeck, 1870. 
Crustacea amphipoda borealia et arctica. 
31. Socarnes bidenticulatus, (Sp. Bate). 
(PI. XII, Fig. 1). 
Jsianassa bidenticulata, Sp. Bate, Ann. & Mag. Nat. Hist. Scr. 3, 
T. 1, pg. 362. 
J t s 'unQ,s sn nugax, Sp. Bate, Cat. Amphip. Brit. Mus., pg. 6i), PI X, 
fig- 3, (non Phipps). 
Jelanasta Vaklii , Goes, Crust, amphip. Spitsb. No. 2 (ex parte). 
on ’jx bidenticulatus, Miers, Spitsb. Crust. Ann. & Mag. Nat. Hist. 
*877, pg. 1 30. 
Artseharacteristik. Legemet ualmindelig licit og 
l0 8et opsvulmet, med de forreste Epimerer over dobbelt 
aa hdie som selve Kroppen. Hovedets Sidevinkler tilspid- 
Fam. 1 . Lysianassidse. 
Gen. 1. Socarnes , 1 Boeck, 1870. 
Crustacea amphipoda borealia et arctica, 
31. Socarnes bidenticulatus, (Sp. Bate). 
(PI. XII, fig. 1). 
Lysianassa bidenticulata, Sp. Bate. Ann. & Mag. Nat. Hist., Ser. 3, 
Yol. t, p. 302. 
Lysianassa nugax, Sp. bate, Cat. Amphip. Brit. Mus. p. 85, PL X, 
fig. 3 (non Phipps). 
Lysianassa Vahlii, Goes, Crust, amphip.' Spitsb. No. 2 (ex parte). 
Anmyx 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 
deling. 
Je: 
g f0lger her forelpbig den af Boeck foreslaaede Slsegtsind- 
p, ■ skjpndt jeg er af den Mening, at man ved en npiere Revision af 
aiI ulien vil finde det npdvendigt at reducere noget Shegternes Antal. 
1 I retain for the present the generic subdivision proposed by 
Boeck. though, in my judgment, a closer revision of the family will 
show the need of slightly reducing the number of genera. 
18 * 
