136 



hos foregaaende Art, men er talrigere og ordnede i flere 

 Rader; de i den inderste Rad -- de egentlige Randtorner 

 — er dog betydelig større end de i de øvrige. 



Gangfødderne (se Fig. 2) er af spinkel Form, omtrent 

 dobbelt saa lange som Legemet (uden Snabelen), og tæt 

 besatte med fine. ensformigt udviklede Haar. Hos Hunnen 

 er 2det Hofteled særdeles stærkt, næsten blæreformigt op- 

 blæst og fyldt med store Ægeeller, medens dette Led hos 

 Hannen (se Fig. 2 p) er smalt og af lineær Form; hos 

 begge Kjon er det mere end dobbelt saa langt som de 2 

 øvrige Hofteled tilsammen. Laarleddet er omtrent af Hofte- 

 partiets Længde og hos begge Kjøn af smal lineær Form; 

 hos Hannen har det nær Basis en stumpt afrundet Knude 

 (Fig. 2 q), som ganske mangler hos Hunnen. Af de 2 

 Lægled er det 2det noget længere end det Iste og omtrent 

 af Laarleddets Længde, begge meget smale, lineære. Ende- 

 partiet (Fig. 2 r, 2 s) er omtrent halvt saa langt som 2det 

 Lægled og har Tarsalleddet meget kort. medens Fodleddet 

 er temmelig stærkt forlænget og næsten lige. 



De til de falske Fedder hos Hannen fæstede Æg er 

 (se Fig. 2 c) forholdsvis meget store, kugleformige. og faa 

 i Antal, neppe over 8 — 12 Stykker. De er enkeltvis grup- 

 perede omkring 4de Led, uden at være omgivne af nogen 

 fælles Omhyllingsmembran. 



Legemet er i levende Tilstand af hvidagtig Farve og 

 temmelig gjennemsigtigt, saa at flere af de indre Dele 

 skinner mere eller mindre tydeligt igjennem Integumen- 

 terne. Saaledes er, naar Legemet sees nedenfra (Fig. 2 b) 

 den hele Buggangliekjrede meget ioinefaldende. Den be- 

 staar af 5 vel adskilte Ganglier, hvoraf det forreste er af 

 temmelig smal og forlænget Form. De fra Ganglierne 

 udgaaende Hovednerver er ligeledes tydelig at forfølge. 



Forekomst. Af denne characteristiske Form blev 

 under Expeditionen talrige Exemplarer indsamlede, navnlig 

 i stor Mængde paa de paa Bundskraben fæstede Svab- 

 berter. Arten er observeret paa ikke mindre end 5 for- 

 skjellige Stationer, spredte omkring i det af os bereiste 

 Havstrøg fra den 63de til den 78de Bredegrad. Af Sta- 

 tionerne ligger 2 (St. 35 og 53) i Havet mellem Norge paa 

 den ene Side og Færøerne og Island paa den anden, en 

 3die (St. 205) NV af Lofoten, de 2 øvrige (St, 303 og 

 353) længere Nord i Havet mellem Spitsbergen og Beeren 

 Eiland paa den ene Side og Grønland og Jan Mayen paa 

 den anden. Dybden fra 1081 til 1539 Favne. Alle Sta- 

 tioner tilhører den kolde Area. 



Udbredning. Da denne Form hidtil ikke er obser- 

 veret af andre Forskere, kan om dens Udbredning for 

 Tiden kun siges, at den synes at være indskrænket til den 

 tlvbe. med iskoldt Vand paa Bunden fyldte Indsænkning i 

 Nordhavet, der ligger vestenom de store Havbanker og 

 disses Fortsættelse mod Nord forbi Beeren Eiland og 

 Spitsbergen. Østenfor den 13de Længdegrad er den hidtil 

 ikke observeret. 



(fig. 2 o) exhibit a similar appearance as in the preceding 

 species, but are more numerous and arranged in several 

 series; those in the inuermost series — the real marginal 

 species — are, however, considerably larger than the others. 



The ambulatory legs (see fig. 2) are slender in form. 

 about twice as long as the body (excluding the proboscis), 

 arm are closely beset with fine, uniformly developed 

 setæ. In the female the 2nd coxal joint is very much, 

 almost vesicularly inflated, and is filled with large ovicells, 

 whilst the same joint in the male (se fig. 2 p) is narrow 

 and linear in form; in both sexes it is twiee as long as 

 the 2 other coxal joints tåken together. The femoral joint 

 is about the length of the coxal part, and in both sexes 

 is narrow linear in form; it has, in the male, near the 

 base, a bluntly rounded nodule (fig. 2 q), which is quite 

 absent in the female. Of the 2 tibial joints the 2nd is 

 somewhat longer than the Ist one, and about the length 

 of the femoral joint, both very narrow, linear. The ter- 

 minal part (fig. 2 r, 2 s) is about half the length of the 

 2nd tibial joint and has the tarsal joint very short, while 

 the propodal joint is pretty strongly elongated and almost 

 straight. 



The ova attached to the false legs in the male (see 

 fig. 2 c) are relatively very large, globular in shape, and 

 few in number. scarely more than 8 — 12. They are 

 grouped singly, round the 4th joint, without being enve- 

 loped in any common enclosing membrane. 



The body is, in the live state, of whitish colour and 

 pretty transparent, so that several of the internal organs 

 appear more or less distinctly visible through the integu- 

 ments. Thus, when the body is viewed from below (fig. 

 2 1 1), the entire chain of ventral ganglia is very prominent. 

 It consists of 5 well separated ganglia, of which the foremost 

 is of råtner narrow and elongate form. The chief nerves 

 issuing from the ganglia may also be distinctly traced. 



Occurrence. Numerous specimens of this charac- 

 teristic form were collected during, the expedition, especi- 

 ally attached in great numbers to the swabs secured to 

 the dredge. The species was observed at not less than 5 

 different stations scattered about in the tracts of the ocean 

 cruised in, from the 63rd to the 78th parallels of latitude. 

 (Jf the stations, 2 (St. 35 and 53) are situated in the 

 ocean between Norway on the one side and the Faeroe 

 Islands and Iceland on the other; a 3rd (St. 205) to the 

 N. W. of Lofoten; the 2 others (St. 303 and 353) farther 

 north, in the ocean between Spitzbergen and Beeren Eiland 

 on the one side and Greenland and Jan Mayen on the 

 other. Depth from 1081 to 1539 fathoms. All the stations 

 pertain to the eold area. 



Distribution. As this form has not, hitherto, been 

 observed by other naturalists, it can, for the present, only 

 be said of its distribution, that it appears to be confined to 

 the deep basin filled at the bottom with iee-cold water that 

 exists in the North Sea, situated to the west of the great 

 ocean banks and their continuation northwards past Beeren 

 Island and Spitzbergen. To the east of the 13th degree 

 of longitude it has not hitherto been observed. 



