106 



(se Fig. 2 b, 2 g) kjendelig kraftigere udviklede og navnlig 

 5te Led af betydelig Størrelse, noget krummet og i sit 

 ydre Parti forsynet med en stærk Opsvulmning besat med 

 lange og tætte Børster. Ogsaa Endedelens Iste Led er 

 forholdsvis større og bredere end hos Hunnen. Rand- 

 turnerne (Fig. 2 h) er hos begge Kjøn bredt lancetformige 

 og ntydeligt crenulerede i Kanterne, med det yderste Parti 

 glat. Endekloen er fint tandet i den ene Kant. 



Gangfodderne (se Fig. 2) viser ogsaa hos denne Art 

 en temmelig robust Bygning, men afsmalnes kjendelig mere 

 mod Enden og er besatte med længere og stærkere Haar. 

 De er omtrent 3 1 / 2 Gang længere end Legemet og har 

 Laarleddet hos Hunnen meget bredt og noget sammentrykt 

 fra Siderne, hos Hannen (Fig. 2 k) betydelig smalere og 

 i den indre Kant forsynet med en Rad af talrige (omkring 

 14) smaa Knuder, der giver denne Kant et fint crenuleret 

 Udseende. 2det Lægled er omtrent 3 Gange længere end 

 det terminale Afsnit og afsmalnes temmelig stærkt mod 

 Enden. Tarsalleddet (se Fig. 2 i) er noget længere end 

 bredt og danner ikke nogen tydelig Lap indad. Fodleddet 

 er mere end dobbelt saa langt og afsmalnes successivt mod 

 Enden. I den indre Kant har dette Led 4 — 5 tynde 

 Torner, der dog kun indtager den indre Halvpart af Led- 

 det, og hvoraf de yderste er af betydelig Længde. Ende- 

 kloen er forholdsvis længere og tyndere end hos foregaaende 

 Art og noget leformigt tilskjærpet. Derimod er Bikløerne 

 yderst smaa. 



De ydre Ægmasser (se Fig. 2 b), der altid kun er 

 tilstede i et enkelt Par, er af betydelig Størrelse og uregel- 

 mæssig kugledannede, med talrige Æg af middels Størrelse 

 Og, paa Grund af det gjensidige Tryk, mere eller mindre 

 kantet Form. 



Dyrets Farve er ialmindelighed sladden graa, gaaende 

 over i det brunlige! Ofte er imidlertid Legemet saa tæt 

 besat med fremmede Dele, at Farven er vanskelig at be- 

 stemme. Ikke sjelden har jeg til Fødderne fundet fæstet 

 Bryozoer, Anneliderør, Hydroider og andre Pseudoparasiter. 



Forekomst. Ved vore Kyster har jeg kun observeret 

 denne Art i den arktiske Region, hvor den imidlertid paa 

 sine Steder, f. Ex. ved Vadsø, er temmelig hyppig paa 

 50 — 100 F. D. Under Nordhavs-Expeditionen toges den 

 paa ikke mindre end 12 forskjellige Stationer. Af disse 

 ligger en (St. 48) af Island, en anden (St. 223) S af 

 Jan Mayen, 6 Stationer (St. 262, 267, 270, 273, 275, 

 290) i Havet N og af Finmarken, endelig 4 Stationer 

 (St. 326, 336, 338, 363) i Havet om Spitsbergen; Dybden 

 fra 70 til 299 F. Ogsaa fra det kariske Hav har jeg 

 havt Anledning til at undersøge talrige Exemplarer. ind- 

 samlede under Xordenskjolds Expedition. 



Udbredning. Arten synes at have en vid Udbred- 

 ning i de arktiske Have. Foruden de ovenomtalte Steder, 

 er den observeret ved arktisk Nordamerika (Bell), Gron- 



limbs (see fig. 2 b, 2 g) are appreciably more powerfully 

 developed, the 5th joint in particular being of consider- 

 able size, somewhat curved, and furnished in its outer 

 part with a prominent tumefaction beset with long and 

 dense bristles. Also the Ist joint of the terminal part 

 is relatively larger and broader than in the female. The 

 marginal spines (fig. 2 h) are, in both sexes, broad-lanee- 

 olate and indistinctly crenulated on the edges, with the 

 outermost part smooth. The terminal elaw has one of 

 the edges finely dentate. 



The ambulatory legs (see fig. 2) exhibit, also, in 

 this species a rather robust structure, but taper appreci- 

 ably more towards the extremity, and are beset with 

 longer and stiffer hairs. They are about 3 1 /» times longer 

 than the body and have the femoral joint in the female 

 very broad and somewhat compressed from the sides, in 

 the male (fig. 2 k) a good deal narrower, and furnished 

 on the inner edge with a series of numerous (about 14) 

 small nodules. which gives to this edge a delicately cren- 

 ulated appearance. The 2nd tibial joint is about 3 times 

 longer than the terminal section, and tapers rather abruptly 

 towards the end. The tarsal joint (see fig. 2 i) is some- 

 what longer than broad, and does not form a distinct 

 lobe inwards. The propodal joint is more than twice as 

 long, and tapers successively towards the end. On its 

 inner edge this joint has 4 or 5 slender spines, which oc- 

 cupy, however, only the inner half of the joint, and of which 

 the outermost are of considerable length. The terminal 

 claw is relatively longer and thinner than in the pre- 

 ceding species, and somewhat falciformly sharpened. The 

 auxiliary claws. on the other hand, are exceedingly small. 



The outer egg-masses (see fig. 2 b), present always 

 as a single pair, are of considerable size and irregularly 

 globiform. with numerous ova of moderate size and. owing 

 to the reciprocal pressure, more or less angular. 



The colour of the animal is generally a dirty grev, 

 bordering on brownish. Very often, however, the body 

 is so coated with foreign substances as to render the 

 colour difficult to determine. Not infrequently I have 

 found attaehed to the legs, Bryozoa, the tubes of Annelids, 

 Hydroids, and other pseudo-parasites. 



Occurrence. On the coasts of Norway I have 

 only observed this species in the Arctic region, where 

 however, in some localities, it is rather common at a 

 depth of 50—100 fathoms. On the North Atlantic Ex- 

 pedition it was tåken at as many as 12 different Stations, 

 viz: 1 (St. 48) east of Iceland. 1 (St. 223) south of 

 Jan Mayen, 6 (St. 262, 267, 270, 273, 275, 290) in the 

 sea north and east of Finmark, and finally 4 (Sts. 326, 336, 

 338, 363) in the sea round Spitzbergen; depth from 70 

 to 299 fathoms. Also from the Kara Sea I have had 

 opportunity of examining numerous specimens collected on 

 NordenskjokVs Expedition. 



Distribution. The species seems to be widely dis- 

 tributed throughout the Arctic Seas. Besides in the 

 above-mentioned localities, it is recorded from Arctic 



