230 



dybesi og afrundet i Bunden. Forti! danner Haanden lige 

 over den kraftige Endeklo et spidst Fremspring. 



Gjellebladene, Brystposen og de 3 bagre Fodpar viser 

 intet udmærkende i sin Bygning. 



At' de 2 Par Bagkropslemmer er det forreste (se Fig. 

 5 c] tydeligt 2-leddet og betydelig større end det bagerste, 

 tier kun danner et Par simple, i Kanterne rint cilierede 

 koniske Vedhæng. 



Hannen (Fig. 5 x) er betydelig større end Hunnen 

 og af QOget mere langstrakt Kropsform. De 2 forreste 

 Segmenter viser dog ikke noget saadant anomalt Forhold 

 som hos Hannerne af foregaaende Slægt. Hvad Legemets 

 Bevæbning angaar, saa er den noget ulig samme hos Hun. 

 nen. idet de dorsale Pigge er betydelig mindre fremtrædende, 

 hvorimod hele Legemets Overflade, ligesom ogsaa en stor 

 Del af Lemmerne, er ru af talrige smaa tilspidsede Kniider. 



Iste Par Følere er stærkere forlængede end hos Hun- 

 nen og navnlig Skaftet kraftigere udviklet, medens Svøben 

 synes at være forholdsvis kortere. 



2det Fodpar skiller sig i sin Bygning fra samme hos 

 Hunnen alene derved, at Basalleddet er noget stærkere 

 forlænget, medens Haanden viser nøiagtig samme Form. 

 Hele dette Fodpar er. ligesom Iste Par Føleres Skaft, tæt 

 besat med de ovenomtalte Smaaknuder. 



Bagkroppen med dens Vedhæng (Fig. 5 c) skiller sig 

 heller ikke i nogen væsentlig Grad fra samme hos Hunnen. 

 Foran den udgaar fra sidste Forkropssegment de 2 ydre 

 Kjønsvedhæng, der er af et lignende Udseende som hos 

 Hannen af CapreUa spinosissima. 



Legemet er hos begge Kjøn temmelig gjennemsigtigt, 

 hvidagtigt, med uregelmæssige mørkere Pigmentshatteringej:. 



Længden af den ægbærende Hun er 30""". Hannen 

 er betydelig større og opnaar en Længde af indtil 38""". 



Forekomst og Udbredning. Denne smukke og char- 

 aeteristiske Art er under Expeditionen observeret paa 2 

 forskjellige langt fra hinanden liggende Stationer; den ene 

 (Stat. 48) beliggende i Havet Øst af Island, den anden 

 (Stat. 336) udenfor Sydpynten af Spitsbergen; Dybden fra 

 70 til 299 Favne. Af disse Stationer tilhører ialfald den 

 ene (Stat. 48) denkolde Area, og den anden ligger under 

 en saa hoi nordlig Brede, at Artens arktiske Oprindelse 

 neppe er tvivlsom. 



Angaaende dens geographiske Udbredning udenfor 

 Nordhavet, saa er den observeret saavel ved Grønland som 

 ved Nordamerikas Østkyst, nordenom Oap Cod. 



lappets, the foremost is the deeper, and rounded off at the 

 bottom. Anteriorly, just above the powerful terminal claw, 

 the hand extends forward as a pointed prolation. 



The branchial scales, the marsupium, and the 3 pos- 

 terior pairs of legs<exhibit nothing characteristic in their 

 structure. 



Of the 2 abdominal appendages, the anierior (see fig. 

 5 c) is distinctly two-jointed, and much larger than the 

 posterior, which constitutes merely a pair of simple appen- 

 dages finely ciliated along the margins. 



TJie Male (fig. 5 x) is considerably larger than the 

 female. and somewhat more elongate in form. The 2 an- 

 terior segments do not, however, exhibit any such anomalous 

 relation as in the males of the preceding genus. With 

 regard to the armature of the body. it differs somewhat 

 from that in the female. the dorsal spikes being much less 

 prominent, whereas the whole surface of the body, as also 

 a considerable portion of the limbs, are rough from numerous 

 small acute protuberances. 



The Ist pair of antennæ are more elongate than in 

 the female. with the pedunole exhibiting a specially powerful 

 development, whereas the flagellum would appear to be 

 relatively shorter. 



The 2nd pair of. legs differ in structure from that 

 in the female simply by the basal joint occurring a trine 

 more elongate; but the hand exhibits precisely the same 

 form. The whole of this pair of legs, as also the peduncle 

 of the Ist pair of antennæ, are densely beset with the fore- 

 mentioned small protuberances. 



X or does the abdominal division of the body with 

 its appendages (fig. 5 c), present any essential difference 

 from that in the female. Anterior to it, issne from the 

 last body-segment the 2 outer generative appendages, of 

 a , similar appearance to those in the male Caprella spi- 

 nosissima. 



The body is in botli sexes well-nigh translucent, whit- 

 ish, with irregular pigmentary shadings. 



Length of the ovigerous female 30""". The male is 

 considerably larger, attaining in length 38""". 



Occurrence and Distritoution. — This beautiful and 

 characteristic species was met with on the Expedition at 2 

 widely distant Stations; the one (Stat. 48) lav east of Ice- 

 land. the other (Stat. 336) was located off the southern 

 extremity of Spitzbergen; depth ranging from 70 to 299 

 fathoms. Of these Stations, one at least (Stat. 48) belonged 

 to the eold area. aud the other was located in so high a 

 latitude, that the Arctic origin of the species can hardly 

 be doubtful. 



As regards its geographical distribution without the 

 limits of the Northern Ocean, the animal has been observed 

 off Greenland and the eastern coast of North America, 

 north of Cape Cod. 



