133 
tydelig Storrelse, ikke omgivne af nogen failles Mem- 
bran. 
Bemserkninger. Denne SlfBgt staar vistnok meget 
nrnr foregaaende, men synes mig dog at burde opretholdes, 
da Here Arter i den nyere Tid er opdagede, der viser 
lignende Forskjelligheder fra Skegten Eunycyde som den 
typiske Art. Af disse Forskjelligheder kan fremhmves den 
smale forlsengede Form af Legemet. feuabolens enoime 
Udvikling og Mangel af noget tydeligt Skaft, Saxlemmer- 
nes Structur, endelig de falske Fodders Bevsebning og 
Halesegmentets Form. Den af Dohrn opstillede iSkegt 
Barana synes i visse Henseender at komme mervajrende 
Type endnu nsermere end foregaaende Slaegt, og navnlig 
riser den ene af Arterne, B. castelli, i sin ydre Habitus en 
umiskjendelig Lighed med Arterne af Slmgten Ascorhyn- 
ehus, medens den anden Art, B. arenosa i denne Hen- 
seende mere minder om Slmgten Eurycyde. Der er imid- 
lertid visse Forkold, der synes at skille begge disse Arter 
saavel fra Slmgten Eurycyde som Ascorhynchus og som 
taler imod at forene dem med nogen af disse Skegter. 
Foruden den nedenfor nsermere beskrevne Art horer herhen 
3 af Hoek fra Challenger Expeditionen beskrevne Arter, 
og en af Bohm under Bemevnelsen Gnamptorhynchas ramipes 
opfort Form fra Japan henfores af Hoek ligeledes til denne 
Sltegt. Ar ter nes Antal bliver saaledes for Tiden ikke 
mindre end 5 ialt. 
41. Ascorhynchus abyssi, G. 0. Sars. 
(PL XIV, Fig. a-t). 
' Ascorhynchus abyssi. G. 0. Sars, Prodromus descript. Crust. 
& Pycnog. etc., Ho. 8. 
„ G. U. Sars, Pycnogonidea borealia & 
aretica No. 41. 
Artscharacter. Legemet smalt cylindriskt, mod foi- 
holdsvis korte og vidt adskilte Sidefortsatser. De 3 for- 
reste Segmenter med den bagre Del ophoiet og gaaende 
ud i en opadrettet tilspidset Fortsats; en lignende men 
noget mindre Fortsats ved Enden af enhver af Sidefort- 
satserne. Hovedsegmentet noget lsengere end de 2 folgende 
Segmenter tilsammen; Pandedelen successivt udvidet mod 
Enden, som er tvmrt afkuttet. Halesegmentet meget smalt, 
noget nedadkrummet. 0ieknudon helt fortil, stumpt af- 
rundet i Enden, med et kort tandformigt Fremspring til 
liver Side og uden Spor af Synselementer ; Snabelen af 
smrdeles betydelig Storrelse, saa lang som de 3 forreste 
Segmenter tilsammen, stmrkt fortykket paa Midten, nmsten 
1 pmreformig og omslaaet under Bugen. Saxlemmerne om- 
trent halvt saa lange som Hovedsegmentet, Skaftet. enled- 
det. Haanden bos fuldt udviklede Individer sserdeles liden, 
triangular, med en kort tandet Knude som Rudiment af 
number and of considerable size, not enveloped by any 
common membrane. 
Remarks. This genus certainly approximates to the 
preceding one pretty closely, but it appears to me, how- 
ever, that it should be maintained, as several species have 
been discovered in later years which exhibit similar diver- 
gencies from the genus Eurycyde as the typical species. 
Of these divergencies may be accentuated, the narrow elong- 
ated form of the body, the enormous development of the 
proboscis and the absence of any distinct scape, the struc- 
ture of the chelifori and, finally, the armature of the false 
legs and the form of the caudal segment. The genus 
Barana. established by Dohrn, appears, in some respects, 
to approach the present type still closer than the pre- 
ceding genus; and the one of the species B. castelli , 
especially, shows in its external habit an unmistakable 
resemblance to the species of the genus Aschorynchus, 
whilst the second species, B. arenosa , reminds in this 
respect more of the genus Eurycyde. There are. however, 
certain features that appear to separate both those species 
from the genus Eurycyde as well as Ascorhynchus. and 
which forbid their union with any of those genera. Besides 
the species more particularly described hereafter. 3 species 
from the Challenger Expedition, described by Hoek. per- 
tain to it, and a form from Japan described by Bohm. 
under tire appellation Gnamptorynchus ramipes, has also 
been referred by Hoek to this genus. The number of the 
species is thus, at present, not less than 5 altogether. 
41. Ascorhynchus abyssi, G. 0. Sars. 
(PL XIV, fig. 2 , a— t). 
Aschorynchus abyssi, G. 0. Sars, Prodromus descript. Crust. 
& Pycnog. etc. No. 8. 
G. 0. Sars, Pycnogonidea borealia & 
arctica, No. 41. 
Specific Characters. Body narrow cylindrical, with 
relatively short and widely separated lateral processes. 
The 3 foremost segments with the posterior part elevated, 
and continued into a pointed process directed upwards; a 
similar but somewhat smaller process at the extremity of 
each of the lateral processes. Cephalic segment some- 
what longer than the 2 succeeding segments together; 
frontal part successively expanded towards the extremity, 
which is abruptly truncated. Caudal segment very nar- 
row, somewhat bent downwards. Ocular tubercle quite 
in front, bluntly rounded at the end, with a short 
dentiform prominence on each side and without trace 
of visual elements. Proboscis of particularly great size, 
as long as the 3 anterior segments together, strongly 
tumeficated at the middle , almost piriform and folded 
under the belly. Chelifori about half as long as 
the cephalic segment, scape single-jointed, hand, in fully 
