202 
Bemserkninger. — Denne Form borer aabenbart til 
Slsegten Bybits, saaledes som denne af Boeck er charac- 
teriseret. Den skillcr sig fra den typiske Art, B. Gaimardii 
Krbyer strax ved den fuldstaendige Mangel af 0ine og red 
(let mindre stierkt forlamgede Ho ved. Mere ligner den, den 
af Metzger fra Pommerania’s Expedition beskrevne B. cras- 
sicornis, fra hvilke Art den dog kjendes ved en noget for- 
skjellig Bygning af Folerne og Halefodderne. 
Beskrivelse. Legemet er (se PI. XYI, Fig. 6) smalt 
og forlrenget, kun lidet sammentrykt fra Siderne og med 
' jevnt hvsalvet Ryg. 
Hovedet er neppe lamgere end de 2 forreste Seg- 
menter tilsammen og i Enden skraat afskaaret, med Side- 
hjdrnerne afrundede. 
De 4 torreste Par Epimerer er forholdsvis smaa, kun 
lidet lioiere end selve Kroppen og nedentil jevnt afrundede 
samt tset borstebesatte ; 4de Par er noget storre end de 
ovrige og ender bag til med et skarpt Hjorne. 
odie Bagkropssegments Sideplader er bagtil stumpt 
afrundede, uden Yinkel. 4de Segment har oventil en pukkel- 
formig, sammentrykt F orhoining, og en lignende, skjondt 
mindre, bemarkes ogsaa paa sidste Segment. 
0ine mangier ganske og aldeles, i Modsaetning til hvad 
Tilfteldet er hos den typiske Art, hvor do netop udmserker 
sig ved sin Tydelighed og sit morke Pigment. 
Fodderne er idethele temmelig lige samrne lios den 
typiske Art. De 2 forreste Par er omtrent af samme Ud- 
seende som hos foregaaende Slsegt. De 2 folgende Par 
har nrestsidste Led neppe halvt saa langt soju sidste, medens 
Endekloen omtrent er saa lang som begge tilsammen. 5te 
og 6te Fodpar er indbyrdes omtrent af ens Bygning, 
med bredt ovalt Hofteled og sserdeles smalt sidste Led. 
Sidste Fodpar har Hofteleddets bagre Udvidning sserdeles 
stor og selv naaende kjendeligt udover 3die Led, samt 
stumpt afrundet i Enden og her besat med teette Fjair- 
borster ; sidste Led er smalt, linesert, og Endekloen ganske 
kort. 
Halefodderne er alle af ens Bygning, med simpelt 
lancetfonnige og nogne Grene. De aftager suceessivt i 
Lamgcle bagtil, saa at de tilbagestrakte omtrent naar til 
samme Tvserlinie. 
Halevedhsenget er forholdsvis lidet, afstumpet i Enden 
og her forsynet med et kort Indsnit. 
Dyrets Farve er hvidagtig, gjennemsigtig, uden tydelig 
Pigmentering. 
Lsengden af det storste undersogte Exemplar er 12 mm . 
Forekomst og Udbredning. Enkelte Exemplarer af 
denne Art er tagne paa 3 forskjellige Stationer, alle til- 
horende den kolde Area. Af disse ligger den ene (St. 31) 
B,emarks. — This form belongs obviously to the 
genus Byblis, as the latter is characterized by Boeck. It 
differs from the typical species, B. Gaimardii Krbyer, by 
the total want of eyes and the much less elongate head. 
Greater resemblance apparently it presents to />’. orassi- 
cornis, taken on the “Pommerania” Expedition, and de- 
scribed by Metzger, from which species, however, it may be 
recognized by the somewhat different structure of the an- 
tennae and the caudal stylets. 
Description. — The body (see PI. XVI, tig. 6) is 
slender and elongate, little compressed from the sides, and 
with evenly arching back. 
The head is scarcely at all longer than the 2 anterior 
segments taken together, and obliquely truncate at the ex- 
tremity, with the lateral corners rounded off. 
The 4 anterior pairs of epimera are comparatively 
small, but little higher than the body, and, below, uni- 
formly rounded, as also densely bristle-beset; the 4th pair 
are somewhat larger than the others, terminating pos- 
teriorly in a sharp corner. 
The lateral plates of the 3rd abdominal segment are 
hindwards obtusely rounded, without any angle. The 4th 
segment has above, a humped, compressed prominence, 
and a similar though smaller one occurs on the last seg- 
ment. 
Eyes totally wanting, contrary to what is the case in 
the typical species, which has them of a specially distinct 
development and a dark pigment. 
The legs are upon the whole rather similar to those 
in the type-species. The 2 anterior pairs have about the 
same appearance as those in the preceding genus. The 2 
succeeding pairs occur with the penultimate joint scarcely 
half as long as the last, while the terminal claw attains 
about the same length as both taken together. The 5th 
and 6th pairs of legs exhibit a well-nigh uniform structure, 
with the basal joint broadly oval and the last joint ex- 
ceedingly slender. The last pair of logs have the posterior 
dilatation of the basal joint remarkably large, and reaching 
appreciably beyond the 3rd joint, as also obtusely rounded 
at the extremity, and there densely beset with plumous 
bristles; the last joint is slender, linear, and the terminal 
claw quite short. 
The caudal stylets are all uniform in structure, with 
simple lanceolate and naked branches. They diminish suc- 
cessively in length backwards, and reach therefore, when 
stretched back, to about the same transverse line. 
The telson is comparatively small, obtuse at the ex- 
tremity, and exhibits there a short incision. 
Colour of animal whitish, translucent, without distinct 
pigmentation. 
Length of the largest specimen examined 12""". 
Occurrence and Distribution. — A few individuals 
of this species were taken on the Expedition, at 3 different 
Stations, all belonging to the cold area. One of these 
