129 



fint haarede i Kanterne. Hovedseginentet stærkt afsmalnende 

 forti], Pandedelen kun lidet udvidet og stumpt afkuttet i 



Enden. Halesegmentet horizontalt. omtrent saa langt som 

 de 3 bagerste Kropssegmenter tilsammen og noget bagen- 

 for Midten forsynet med en Tværrad af 4 — 6 stærke Borster. 

 Øieknuden noget foran Midten af Hovedsegmentet, særdeles 

 smal. cylindrisk, lidt fortykket i Enden, Lindserne af mid- 

 delmaadig Størrelse, nær Spidscn. Snabelens Skaft omtrent 

 af Oieknudens Længde, Endepartiet mere end dobbelt saa 

 langt, tenformigt, den storste Brede nærmere Basis. Sax- 

 lemmerne længere end Hovedsegmentet og det følgende 

 Segment tilsammen, Skaftets sidste Led længst og, ligesom 

 det foregaaende, oventil besat med stærke, grovt cilierede 

 Borster. Haanden særdeles liden. endende med en tilspidset 

 Fortsats og fortil forsynet med et lidet 2-leddet Appendix. 

 Følerne, lige udstrakte, omtrent '/ 2 Gang længere end Sax- 

 lemmerne, 3die Led længere end de 2 følgende tilsammen, 

 Endedelen omtrent af 5te Leds Længde. De falske Fod- 

 der hos Hannen omtrent af Legemets Længde. 4de Led 

 længst, Endedelens Led successivt aftagende i Størrelse, 

 Gangfødderne ikke fuldt dobbelt saa lange som Kroppen, 

 afsmalnende mod Enden og besatte med stærke. grovt 

 cilierede Børster. Laarleddet omtrent af Hoftepartiets 

 Længde og hos Hannen forsynet nær Basis med en konisk 

 tilspidset Fortsats, de 2 Lægled indbvrdes af ens Længde. 

 Endepartiet noget kortere, Fodleddet smalt og forhenget, 

 noget krummet og fint haaret i Inderkanten, Endekloen 

 forholdsvis kort. Legemets Længde (uden at regne Snabelen) 

 2.50 ; Spandvidde H>""». 



Bemærkninger. Denne Art. den eneste liidtil be- 

 kjeiidte af Slægten, er kjendeligt beskrevet af Kioyer og 

 af bildet i Gaimard's store Værk. Senere er den at Dr. 

 Hansen underkastet en fornyet Undersøgelse, hvorved enkelte 

 interessante Forhold ved dens Bygning er ble ven oplyste. 



Beskrivelse. Længden af de af mig undersøgte Ex- 

 emplarer, regnet fra Panderanden til Enden af Haleseg- 

 mentet. overstiger ikke 2 l !. 2 """. og Spandvidden er omtrent 

 10""". Dr. Hansen opgiver Længden af et ualmindelig 

 stort Exemplar til 4.9""", hvorved dog ogsaa Snabelen er 

 medtaget i lige fortilstrakt Stilling. 



Legemets Form (se Pl. XIV, Fig. 1) maa idethele 

 siges at være temmelig undersætsig. skjøndt paa langt nær 

 ikke i den Grad som hos Arterne af foregaaende Slægt, 

 og navnlig er Lemmerne betydelig spinklere. Selve Krop- 

 pen (Fig. 1 a. 1 b) er forholdsvis plumpt bygget og har 

 alle Segmenter meget skarpt afsatte fra hinanden. Ved 

 første Øiekast synes den at være ganske "nogen. men ved 

 stærk Forstørrelse viser det sig. at den overalt er tæt 

 laadden af overordentlig smaa og fine Haar. der ogsaa 

 fortsætter sig ud paa Snabelen. Sidefortsatserne er ualmin- 



Den norske Nordhavsexpedition. G. 0. Sårs: Pycnogonidea. 



vals and finely setous on the margins. Cephalic seg- 

 ment diminishing greatlv anteriorly, the frontal part only 

 little expanded and bluntly truncated at the extremity. 

 Caudal segment horizontal, about as long as the 3 pos- 

 terior segments of the body tåken together, and a little 

 behind the middle furnished with a transversal series 

 of 4 — 6 strong bristles. Ocular tubercle somewhat in 

 front of the middle of the cephalic segment, particularly 

 narrow, cylindric, slightly tumeficated at the extremity, 

 the lenses of medium size, near the point. Scape of 

 the proboscis about same length as the ocular tubercle, 

 the terminal part more than twice as long as it, fusiform, 

 broadest near the base. Chelifori longer than the cep- 

 halic segment and the following one together, the last 

 joint of the scape longest, and. like the preceding one, 

 beset at the top with strong, coarsely eiliated bristles. 

 hand particularly small, terminating in a, pointed process 

 and furnished anteriorly with a small 2-jointed appendix. 

 Palpi, straightly extended, about i l- i longer than the cheli- 

 fori, 3rd joint longer than the 2 succeeding ones together. 

 the terminal part about the length of the oth joint. 

 False legs in the male about same length as the body, 

 the 4th joint longest, the joint of the terminal part 

 diminishing successively in size. Ambulatory legs not 

 quite twice as long as the trunk. tapering towards the 

 extremity and beset with strong, coarsely eiliated bristles, 

 femoral joint about same length as the coxal part and, 

 in the male. furnished near the base with a conically 

 pointed process, the 2 tibial joints, mutually. of equal 

 length. terminal part somewhat shorter, propodal joint 

 narrow and elongated, somewhat bent and finely setous 

 on the inner margin, terminal elaw relatively short. 

 Length of the body (exclusive of the proboscis) 2.5<>»"\ 

 Extent 10""". 



Remarks. This species. the only one of the genus 

 hitherto known, has been recognisably described by Kroyer, 

 and figured in Gaimard's great work. Subsequently it has 

 been subjected to a renewed investigation by Dr. Hansen, 

 which lias elucidated a few interesting features in respect 

 of its structure. 



Deseription. The length of the specimens examined 

 by the author, measured from the margin of the frontal [tart 

 to the extremity of the caudal segment, does not exceed 

 2 1 //"" and the extent is about 10""". Dr. Hansen states 

 the length of an unusually large specimen as 4.9""" in 

 which, however, the proboscis, in a straight anteriorly ex- 

 tended condition, is also included. 



The body (see Pl. XIV. fig. 1) must be said to be, 

 altogether. pretty stout. although not nearly to the same 

 degree as in the species of the preceding genus, and the 

 limbs are. in particular, slenderer. The trunk itself (fig. 

 1 a, 1 b) is relatively plumply built, and has all the seg- 

 ments very sharply demarcated from each other. At 

 the first glance it appears to be quite bare, but upon 

 powerful enlargement it appears everywhere finely shaggy, 

 with extremelv minute and delicate hairs, which are also 

 continued out upon the proboscis. The lateral processes 



17 



