simpelt triangulert Fremspring; det lamelleformige 
Vedheng ovalt, tet haaret; Svoben hos Hannen 
mere forlenget end hos Hunnen og forsynet med 
talrige krandsformigt stillede Sandseborster. De 
nedre Felere med Skaftet 3-leddet, 2det Led ved 
Enden fortil gaaende ud i et kort tandformigt Frem- 
spring og dannende med sidste Led en kneformig 
Beining; Svoben hos Hannen overordentlig tynd 
og forlenget. Kindbakkernes Palper meget store, 
3-leddede, sidste Led sammentrykt, lineert, stumpt | 
tilrundet i Enden og tet borstebesat langs Inder- 
kanten. Iste Par Kjever med begge Tyggelappe 
korte, den yderste bredest, Palpen sterkt forleenget, 
besat med lange stive Borster; 2det Par med vel 
udviklet 2-leddet Palpe og smal elliptisk Exognath. 
Branchialfodderne ganské dekkede af Rygskjoldets 
Valvler; Endopoditen jevnt afsmalnende mod Enden, 
hos Hunnen sterkere forlenget end hos Hannen 
samt ved Spidsen besat med lange, cilierede Borster; 
Exopoditen lamelleformig, bredt oval; Epipoditen 
meget stor, pladeformig, saavel oventil som nedentil 
uddraget til en lameller Lap. Svommefodderne 
kraftigt udviklede, den ydre Gren kortest og i 
Yderkanten heveebnet med steerke Torner, den indre 
smalt lancetformig. Halegrenene lineere, sterkere 
forlengede hos Hannen, tet borstebesatte langs 
Inderkanten og i Spidsen. 
Bemerkninger. — Fra de 2 ovennevnte Sleg- 
ter, Paranebalia og Nebalicpsis, er nerverende Slegt, 
foruden ved Branchialfoddernes forskjellige Udseende, 
blandt andet characteriseret ved Rygskjoldets Form, 
som naynlig hos Slegten Nebaliopsis er temmelig 
afvigende, fremdeles ved de eiendommelige skjel- 
formige Gienplader, ved Folernes Bygning og navn- 
lig disses eiendommelige Udvikling hos Hannen, ende- 
lig ved Kjevernes Bygning. Ogsaa i det indbyrdes 
Forhold mellem de forskjellige Kropsafsnit er der 
characteristiske Differentser mellem de 3 Slegter. — 
Man kjender for Tiden med Sikkerhed kun 2 Arter 
af denne Slegt, som begge forekommer hos os og 
nedenfor vil blive noiere beskrevne ‘). 
*) Den af Thomson (Ann. Nat. Hist. Ser. 5. Vol. 4), fra New 
Zeeland anforte N. longicornis tor dog, efter Lokaliteten 
at domme, representere en egen Art. Det afbildede Ex- 
emplar, en fuldt udviklet Han, ligner imidlertid serdeles 
meget Hannen af yor N. bipes. 
8 
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between the 2nd and 3rd joints; last joint somewhat 
expanded towards the extremity and, anteriorly, 
produced to a short plain triangular projection; the 
lamelliform appendage oval, densely hirsute; flagellum 
in the male more prolonged than in the female, and 
furnished with numerous verticilate sensory bristles. 
Inferior antenne with the peduncle 3-jointed, 2nd 
joint, at the anterior extremity, produced to a short 
dentiform projection, and forming with the last joint 
a geniculate bend; flagellum in the male extremely 
slender and prolonged. Mandibular palps very 
large, 3-jointed, last joint compressed, linear, bluntly 
rounded at the extremity, and closely beset with 
bristles along the inner edge. First pair of maxille 
with both masticatory lobes short, the outer one 
broadest, palp greatly prolonged, beset with long 
stiff bristles; 2nd pair with well developed 2-jointed 
palp and small elliptical exognath. Branchial legs 
quite covered by the valves of the carapace, the 
endopodite diminishing uniformly towards the ex- 
tremity, more prolonged in the female than in the 
male, and at the extremity beset with long ciliated 
bristles; the exopodite lamelliform, broadly oval; 
the epipodite very large, lamelliform, drawn out 
above and below to a lamellar lappet. Natatory 
legs powerfully developed, the outer ramus shortest 
and on the outer margin beset with strong spines; 
the inner ramus narrow lanceolate. Caudal rami 
linear, more prolonged in the male, closely beset 
with bristles along the inner edge and at the tip. 
Remarks. — The present genus is, besides by 
the difterent appearance of the branchial legs, among 
other things distinguished from the 2 above-men- 
tioned genera, Paranebalia and Nebaliopsis, by the 
form of the carapace, which, especially in the genus 
Nebaliopsis is pretty different; further, by the pecu- 
liar squamiform ocular, plates, the structure of the 
antenne and especially their peculiar development 
in the male, and finally by the structure of the 
maxille. Jn the mutual relations, also, between 
the various sections of the body, there are charac- 
teristic divergencies between the 3 genera. At 
present we know, with certainty of only 2 species 
of this genus, both of which belong to the Norwe- 
gian Fauna and will be more particularly described 
in the sequel '), , 
*) N. longicornis mentioned by Thomson, from New Zealand, 
(Ann. Nat. Hist. Ser. 5, Vol. 4) may, however, judged by 
its locality, represent a distinct species. The specimen 
illustrated, a fully developed male, resembles, however, 
very greatly the male of the northern N. bipes. 
