140 



Endekloen er tydeligt udviklet, skjondt ikke af nogen be- 

 tydelig Længde og ganske glat. 



Gangfødderne (se Fig. 1) er omtrent dobbelt saa 

 lange som Legemet og idethele af temmelig kraftig Byg- 

 ning, kim lidet afsmalnende mod Enden. De 3 Hofteled 

 er korte og tykke, næsten terningformige og omtrent af 

 ens Størrelse. Laarleddet er omtrent 3 Gange saa langt 

 sum Hoftepartiet og knn lidet opsvulmet. De 2 Lægled 

 er betydelig kortere og ikke meget forskjellige indbyrdes, 

 begge simpelt cylindriske. Endepartiet (Fig. 1 d) er noget 

 kortere end sidste Lægled og betydelig smalere. Af dets 

 2 Led er det Iste (Tarsalleddet) betydelig storre end 

 Fodleddet og begge ganske simple, aden anden Bevæbning 

 end de samme smaa mikroskopiske Torner, der ogsaa be- 

 dekker den øvrige Del af Fadderne. Endekloen er adskil- 

 ligt kortere end Fodleddet, fnldkommen lige og sylformigt 

 tilspidset. Af Bikloer er der intet Spor at opdage. 



Farven er hos det levende Dyr gulrød, noget mere 

 intens ved Enden af Leddene. 



Forekomst. Det ovenfor beskrevne Individ toges 

 under Expeditionens Iste Togt i Havet V af Storeggen 

 (Stat. 18) paa et Dyb af 412 Favne. 



Udbredning. Arten synes at have en vid Udbred- 

 ning i de arktiske Have. Den blev først beskrevet af 

 Sabine fra Polarhavet mellem Grønland og Nordamerika 

 og er senere noteret af Jarzynsky fra den mnrmanske 

 Kyst, af Hoek fra tiere Punkter i Barentssoen samt fra 

 Færo-Shellands-Reiiden (Triton's Expedition), af Miers fra 

 Frantz Josephs Land, af Hausen fra det kariske Hav og 

 fra Nord-Grønland ; endelig af Stuxberg fra det sibiriske 

 Ishav. Ifølge denne Udbredning maa Arten siges at være 

 circumpolar, og skjondt den er observeret saa langt Syd 

 som til den 60de Bredegrad, er den utvivlsomt at betragte 

 som en ægte arktisk Form, da hine sydlige Stationer alle 

 tilhører den kolde Area. 



43. Colossendeis angusta, G. 0. Sårs. 



(Pl. X, Fig. 2, a— f). 



Colossendeis angusta, G. 0. Sårs, Prodrom. descript. Crust. 

 & Pycnog. etc. p. 368. 



Wilson, Bull. Mus. Comp. Zool. VIII, 

 p. 243, Pl. III, Fig. 8 & 13. 



Hoek, Pycnogon. Færoe Channel dur- 

 ing the Cruise of „Triton", Trans. Roy. Soc. Edin- 

 burgh, Vol. XXXII, Part I. p. 5, Pl. 1, Fig. 8. 



Hansen, Kara-Havets Pycnogonider, 

 p. 21. 



short, compressed spines. The terminal claw is distinctly 

 developed, although not ot any considerable length, and 

 quite smooth. 



The ambulatory legs (see fig. 1) are about twice as 

 long as the body and altogether of pretty powerful struc- 

 ture, only little tapered towards the extremity. The 3 

 coxal joints are short and thick, almost quadrate, and 

 about equal in size. The femoral joint is about 3 times 

 as long as the coxal part and only little tumefied. The 

 2 tibial joints are considerably shorter and not very dif- 

 ferent from each other, both plain cylindric. The terminal 

 part (fig. 1 d) is soruewhat shorter than the last tibial 

 joint and considerably narrower. Of its 2 joints the Ist 

 (ine (the tarsal joint) is considerably larger than the pro- 

 podal joint, and both are quite plain, without any other 

 armature than the same small microscopical spines as 

 also cover the remaining portion of the legs. The ter- 

 minal claw is considerably shorter than the propodal joint, 

 perfectly straight, and pointed like an awl. No trace of 

 auxiliary elaws can be discovered. 



The colour in the living animal is yellow-red, some- 

 what more intense at the extremity of the joints. 



Occurrenee. The individual described in the fore- 

 going was tåken on the Ist cruise of the Expedition, in 

 the ocean W. of the Storeggen bank (Stat. 18) at a depth 

 of 412 fathoms. 



Distribution. The species seems to have a wide 

 distribution in the Arctic seas. It was first described by 

 Sabine from the Polar Sea between Greenland and Xorth 

 America, and is subsequently recorded by Jarzynsky from the 

 Munn an coast, by Hoek from several points in the Barents 

 Sea and from the Faroe — Shetland Channel (Tritoifs Ex- 

 pedition), by Miers from Frants Josephs Land, by Hansen 

 from the Kara Sea and from North Greenland, and finally, 

 by Stuxberg from the Siberian Polar Sea. According 

 to that distribution, the species must be said to be cir- 

 cumpolar, and although it has been observed as far south 

 as the 60th parallel of latitude, it must, indubitably, be 

 considered as a genuine Arctic form, as those southern 

 stations all pertain to the cold area. 



43. Colossendeis angusta, G. 0. Sårs. 



(Pl. X. fig. •_'. a— i). 



Colossendeis angusta, G. O. tSars, Prodrom. descript. Crust. 

 & Pycnog. &c. p. 368. 



Wilson, Bull. Mus. comp. Zool. VIII, 

 p. 243, Pl. Ill, figs. 8 & 13. 

 — Hoek, Pycnogon. Faroe Channel dur- 



ing the Cruise of ..Tritoir', Trans. Roy. Soc. Edin- 

 burgh, Vol. XXXII, Part 1, p. 5. Pl. I, fig. 8. 



— Hansen, Kara Havets Pycnogonider 

 p. 21. 



