201 
Halevedhsenget (se ■ Fig. 5 o) er forholdsvis lidet og 
afstumpet, i Spidsen samt klovet til foran Midten. 
Farven or hvidagtig. gjennemsigtig, uden tydelig Pig- 
ln *'nteriiu>' 
O* 
Lcengden synes ikke at overskride 8 mm . 
The telson (fig. 5 o) is comparatively small, and obtuse 
at the point, as also cleft beyond the middle. 
Colour whitish, translucent, without distinct pigmenta- 
tion. 
Length apparently not exceeding 8’” m . 
Forekomst og Udbredning. Vi liar taget denne Art 
paa ikke mindre end 6 forskjelligo Stationer, alle tilhorende 
'Fn kolde Area. Af disse ligger de 5 (St. 31, 124, 137, 
251) i Havet udenfor Norges vestlige og nordlige Kvst, 
’Fu 6te (St. 362) NY af Spitsbergen; Dybdon fra 350 til 
Favne. 
Artens for Tiden bekjendte Udbredningsfelt er her- 
°Fer det pstlige Aflield mod Nordhavets store Dyb fra 
c ^ en 62de til den 80de Bredegrad. 
Occurrence and Distribution. — ihis species was 
taken on the Expedition at as many as 6 different Stations, 
all belonging to the cold area. Five (Stats. 31, 124, 137, 
200 251) were located off the western and northern shores 
of Norway, the sixth (Stat. 362) lay north-west of Spitz- 
* bergen; depth ranging from 350 to 634 fathoms. 
Hence, the tract throughout which the species is at 
present known to be distributed, comprises the eastern 
slope of the sea-bed, where it shelves toward the great 
depths of the Northern Ocean, — from the 62nd to the 
80th parallel of latitude. 
Gen. 2. J3jG>lis, Boeck, 1870. 
Crust, amphip. boreal. & arct. 
62. Byblis abyssi, G. O. Sars, n. sp. 
(PI. XVI, Pig. (i). 
Sybils abyssi, G-. O. Sars, Crust. & Pycnogonida nova etc., No. 33. 
Artscharacteristik. Legemet smalt og forlamget, med 
l,m <l P.Vg og forholdsvis smaa, afrundede Epimerer. Ho- 
u ‘det ikke meget forlamget, i Spidsen skraat afstumpet, 
Ul ed Sidehjpmerne tilrundede. 3die Bagkropssegments Side- 
plader bagtil jevnt afrundede; 4de og sidste Segment oventil 
en sammentrykt Pukkel. Ingen 0ine. Iste Par Fo- 
11(1 ointrent af Legemets halve Lrengde, med Skaftets lste 
ec * ^ or t og tykt, 2det Led betydelig hengere og smalere, 
! V0 ^®h over dobbclt saa lang som Skaftet; 2det Par af 
iele Legemets Laengde, med alle Skaftets Led synlige ud- 
'endigt, 3die Led ragende fortil langt, ud over Hovedets 
P^G, de 2 sidste omtrent af ens Lauigde, Svoben lamgere 
Skaftet og besat med lange tynde Borster. Fpddernc 
‘P smdvanlig Bygning. Hofteleddet paa sidste Fodpar bagtil 
| u J\idet til en bred bprstebesat Lap, del rager ud over 
J< 'e Led; sidste Led smalt, linesert. Halefpdderne alle af 
6)ls Gdseende, successivt aftagende i Laengde bagtil. Hale- 
' 1 dhaniget lidet, i Enden afstumpet og forsynet med et 
i0lt Indsnit. Farven hvidagtig. Lsengden 12 m,,! . 
Pindesteder. Stat. 31, 124, 200. 
Den mrske Nordhavsexpedition. G. O. Sars: Crustacea. 
Gen. 2. B.vl>liss 5 Boeck, 1870. 
Crust, amphip. boreal. & arct. 
62. Byblis abyssi, G. 0. Sars, n. sp. 
(PI. XVI, fig. 6). 
Byblis abyssi , G. 0. Sars, Crust. & Pycnogonida nova etc., No. 33. 
Specific Character. — Body slender and elongate, 
with back arched and comparatively small, rounded epi- 
mera. Head not vpry elongate, at extremity obliquely 
truncate, with lateral corners rounded off. Lateral plates 
of 3rd abdominal segment evenly rounded posteriorly; 4th 
and last segments having above a compressed hump. No 
eyes. First pair of antennae about equalling half the body 
in length, with 1st joint of peduncle short and thick, 
2nd considerably longer and more slender, flagellum more 
than twice as long as peduncle; 2nd pair equalling whole 
iength of body, with all the joints of peduncle visible ex- 
ternally. 3rd joint projecting anteriorly far beyond point 
of head, the 2 last about uniform in length, — flagellum larger 
t han peduncle, and beset with long, delicate bristles. Legs 
exhibiting usual structure. Basal joint on last pair ex- 
panded posteriorly to a broad bristle-beset lobe, jutting 
out beyond 3rd joint; last joint slender, linear. Caudal 
stylets uniform in appearance, and diminishing in length 
posteriorly. Telson small, truncate at extremity, and with 
a short incision. Colour whitish. Length 12-. 
Locality. — Stats. 31, 124, 200. 
20 
