153 
Par Halefodder med strerkt udvidet Stanune; sidste 
' ai ’’’eget- smaa og rudimentsere. Halevedhsenget kort og 
i’ e dt , med Spiclsen svagt udrandet. Farven hvidagtig. 
Lsmgden 7 1 /o mm , 
large, almost quadrate, and 3rd articulation remarkably 
broad and compressed. Second pair of caudal stylets with 
trunk very fully developed; last pair exceedingly small and 
rudimentary. Telson short and broad, with point slightly 
emarginate. Colour whitish, length 7 
Findested. Stat. 251. 
Locality. — Stat. 251. 
Bemserkninger. Fra den eneste hidtil bekjendte Art 
a i ^lregten, obesum Sp. Bate, er denne let kjendeligved 
n fuldstssndige Mangel af 0ine, de enormt udviklede 1 ste 
ai Polere og de usiedvanlig robuste 3 bagerste Fodpar. 
den rudimentrere Beskaffenhed af sidste Par Halefodder 
<lfi det bagtil ikke indskaarne Halevedhasng adskiller mervie- 
1 ende Art, sig ogsaa vresentligt fra den tvpiske Form. 
Remarks. — From the only hitherto known species 
of this genus, viz. A. obesum Sp. Bate, the present is 
easily distinguished by the total absence of eyes, the pro- 
digiously developed 1st pair of antennce, and the remarkably 
robust 3 posterior pairs of legs. Moreover, in the rudi- 
mentary character of the last pair of caudal stylets, as also 
the posteriorly non-incised telson, this species differs essen- 
tially from the typical form. 
Beskrivelse. Legemet er (se PI. XIII, Fig. 3) af 
ualmindelig kort og underssetsig Bygning, med bred hvmlvet 
Jg og hoie Epimerer. 
Hovedet er forholdsvis lidet, men bredt og bar den 
°rreste Rand til liver Side stmrkt udrandet for Fiestet af 
Par Folere. Dots Sidehjorner er smalt tilrundede. 
De 4 forreste Par Epimerer er omtrent dobbelt saa 
°ie som selve Kroppen og dsekker hinanden delvis gjen- 
Sl digt; 4de Par er bagtil i sin overste Del udrandet for 
( Dt folgende Par og er nedenfor Udrandningen mesten tvsert 
a fskaaret, med den ovre Yinkel ret. 5te Par er omtrent 
a f saniine Hoide som Brede, af uregelmmssig firkantet Form. 
3die Bagkropssegments Sideplader er meget store og 
agtil noget udtrukne, uden dog at va?re tilspidsede. Det 
0 lgende Segment viser oventil et sadelformigt Indtryk. 
Dine mangier ganske og aldeles. 
Iste Par Folere er ganske bverordentlig voluminpse 
omtrent saa lunge som Hovedet og de 4 forreste Seg- 
numter tilsammmi. Skaftet or stasrkt opsvulmet med alle 3 
^d tydeligt begriendsede. Svoben er noget lsengere end 
kaftet og sammensat af 7 Led, hvoraf det Iste udnnerker 
l )aa en paafaldeude Maude ved sin betydelige Storrelse 
stmrkt sannnentrykte nresten pladedannede Form: i den 
1a gre noget tilskjaerpede og bueformigt boiede Rand barer 
dc'tte Led en tat Rad af lange gjennemsigtige Sandscborster. 
’svoben er forholdsvis starkt udviklet og neppe kortere 
e ”d den egentlige Svobe samt sammensat af 6 tynde Led. 
2det Par Foler er noget langere- end Iste Par, men 
”’eget tyndere. Af Skaftets Led er det nastsidste det 
<le ”gste. Svoben er omtrent af Skaftets Langde og sam- 
“lensat af 10—12 Led. 
Munddelene og de forreste Fodpar kunde ikke noiere 
u nders0ges paa det eneste foreliggende Exemplar, men de 
Den norske Nordliavsexpedition. G. O. Sars: Crustacea. 
Description. — The body (see PI. XIII, fig. 3) is 
remarkably short and thickset in structure, with broad, 
arching buck and deep epimera. 
The head is comparatively small, but broad, and has 
the anterior margin, on either side, very considerably emar- 
ginate, for the attachment of the 1st pair of antennas. Its 
lateral corners are narrowly rounded. 
The 4 anterior pairs of epimera are about twice as 
high as the body itself, and partly overlap one another. 
The 4th pair are emarginate posteriorly in their upper part, 
for the reception of the succeeding pair, and below the 
emargination almost vertically truncate, with the upper 
angle a right one. The 5th pair are about of the same 
height as breadth, and irregular-quadrate in form. 
The lateral plates of the 3rd abdominal segment are 
verv large and somewhat produced posteriorly, without 
however being pointed. The succeeding segment exhibits 
above a saddle-shaped impression. 
Of eyes no trace whatever. 
The 1st pair of antenna) are remarkably robust, 
and equal in length to the head and the 4 anterior seg- 
ments taken together. The peduncle is greatly swollen, 
and has each of the three joints distinctly defined. The 
flagellum is somewhat longer than the peduncle, and com- 
posed of 7 articulations, the 1st strikingly characterized 
bv its large size, and greatly compressed almost lamelli- 
form shape; along the posterior, somewhat sharpened and 
arcuate margin, this articulation bears a close series of 
long, translucent sensory bristles. The secondary flag- 
ellum, with 6 slender articulations, is very fully developed, 
and scarcely at all shorter than the true flagellum. 
The 2nd pair of antennas are somewhat longer than 
the 1st, but much more slender. Of the joints of the ped- 
uncle. the penultimate is the longest. The flagellum about 
equal in length to the peduncle, and composed of 10 or 
12 articulations. 
The oral appendages and the anterior pairs of legs 
could not be closely examined in the only specimen taken ; 
20 
