mere smeekker Form. Paa Iste Par (Fig. 17) er der 
dog den Forskjel, at Yderkanten af den ydre Gren 
kun har, umiddelbart ovenfor den yderste Torn, 
3 Smaapigge, medens hos N. bipes hele denne Kant 
er tet og regelmessigt pigget. 
De 2 Par rudimentere Halefodder (Fig. 18, 19) 
viser ligeledes et Udseende, meget ner overens- 
stemmende med samme hos denne Art, alene med 
den Forskjel, at Tornernes Antal paa begge er noget 
ringere. 
Farven er hos det levende Dyr hvidagtig, uden 
nogen bemerkelig Pigmentering. Integumenterne er 
tynde og gjennemsigtige, saa de indre Organer tem- 
melig tydeligt skinner igjennem. 
ZEggene i Klekkehulen er forholdsvis store og 
af en meget bleg gulagtig Farve. 
Lengden af den w#gberende Hun er kun 9 mm., 
Sterrelsen er altsaa betydelig ringere en hos N. bipes. 
Forekomst. Jeg har hidtil kun seet 3 Expl. af 
denne Art, alle Hunner. De blev tagne til forskjel- 
lige Tider paa 3 vidt adskilte Punkter af vor Kyst, 
‘det ene ved Hvitingso, udenfor Stavanger, det 2det 
i Trondhjemsfjorden, og det 3die ved Lofoten. Ex- 
emplarerne forekom paa alle 3 Steder i et Dyb af 
fra 150—200 Favne og paa bled Lerbund. Arten 
synes herefter at maatte betragtes som en udpreget 
Dybvandsform, hvad der ogsaa kan sluttes af de 
ufuldkomment udviklede Synsredskaber. Udenfor 
Norge er den endnu ikke bleven observeret. 
are altogether of a somewhat more slender form. 
In the 1st pair (fig. 17) there is, however, the diffe- 
rence, that the outer edge of the outer branch has, 
immediately above the outermost spine, only 3 small 
spikes, whilst in N. bipes the whole of that edge is 
closely and regularly spiked. 
The 2 pairs of rudimentary caudal feet (figs. 
18, 19) likewise present an appearance very nearly 
correspondent with those in that species, with the 
difference only, that the number of spines on both 
is somewhat smaller, 
The colour in the living state of the animal is 
whitish, without any noticeable pigmentation. The 
integuments are thin and transparent, so that the 
internal organs are pretty distinctly visible through 
them. The ova in the hatching cavity are relatively 
large, and of a very pale yellowish colour. 
The length of the ovigerous female is only 9 
mm. The size is thus considerably less than in 
N. bipes. b 
Distribution. I have hitherto only seen 3 spe- 
cimens of this species, all females. They were taken 
at different times, at 3 widely separated places off 
our coast; the one at Hvitingso, off Stavanger, the 
2nd in the Trondhjemsfjord, and the 3rd at the Lo- 
foten isles. The specimens were obtained, at all ~ 
the 3 places, at a depth of from 150—200 fathoms and - 
on soft clay bottom. It appears from this, that the 
species must be considered as a distinguished deep- 
water form, which may also be gathered from the 
imperfectly developed visual apparatus. Out of Nor- 
way it has not hitherto been observed. 
