44 



her ethvert Spor af de fineTænder i Inderkanten, som tin- 

 des hos unge Individer af hin Art. og har Spidserne noget 

 stærkere indbøiede. 



De falske Fodder er forholdsvis kjendelig længere end 

 hos foregaaende Art, hos Hunnen (se Fig. 4 a) omtrent af 

 Legemets Længde, hos Hannen (Fig. 4) betydelig længere 

 og som hos foregaaende Art forsynede med en konisk Flig 

 ved Enden af 5te Led. De 4 ydre Led er laugs Inder- 

 kanten bevæbnede med en regelmæssig Kad af saugtakkede 

 Turner (se Fig. 4 e). Endekloen er forholdsvis længere end 

 hos P. circularis og har flere Tænder i Inderkanten. 



Gangiødderne (se Fig. 4) udmærker sig ved sin be- 

 tydelige Længde, der næsten er 4 Gange saa stor som Le- 

 gemets. De er overalt tæt besatte med pigformige, børste- 

 bærende Fortsatser, der dog er betydelig mindre end hos 

 foregaaende Art og ganske glatte i Kanterne. Af Hofteled- 

 dene er det 2det stærkt forlænget, betydelig længere end de 

 2 øvrige tilsammen. Laarleddet er hos Hunnen temmelig 

 stærkt opsvulmet paa Midten, hos Hannen (Fig. 4) betydehg 

 smalere og noget buet. Iste Lægled er omtrent af Laar- 

 leddets Længde, medens 2det er kjendelig længere og meget 

 smalt. Tarsalleddet (se Fig. 4 f) er noget større end hos 

 foregaaende Art, skraat afskaaret i Enden og i Inderkanten 

 bevæbnet med flere, udåd i Længde tiltagende Torner. 

 Fodleddet er næsten ret, forholdsvis smalere end hos P. cir- 

 cularis og bevæbnet i Inderkanten med stærke Torner, hvoraf 

 navnlig de 4 eller 5 bagerste udmærker sig ved betydelig 

 Størrelse. Endekloen er kraftigt udviklet, letormigt krum- 

 met og noget kortere end Fodleddet. Af Bikløer er der, 

 ligesaalidt som hos foregaaende Art. det mindste Spor at 

 "pi lage. 



De ydre Ægmasser (se Fig. 4) forholder sig som hos 

 foregaaende Art. 



Dyrets Farve er mere eller mindre intens gul, gaaende 

 hos ældre Individer over til gulbrunt. 



Forekomst. Denne Art synes ved vore Kyster at 

 være sjeldnere end foregaaende. Jeg har tåget den paa et 

 Par Punkter ved vor Vestkyst, fremdeles ved Lofoten og 

 ved Finmarken lige til Vadsø. Den forekommer under lig- 

 nende Forhold som P. circularis og oftest sammen med 

 denne Art. 



Udbredning. Som foregaaende Art er den en ud- 

 præget nordlig Form og synes derfor ogsaa at naa sin kraf- 

 tigste Udvikling i de arktiske Have. Foruden ved Norge 

 er den noteret fra Grønland (Krøyer) og den murmanske 

 Kyst (Jarzynsky). Et enkelt Exemplar har jeg havt Anled- 

 ning til at undersøge fra det Kariske Hav, tåget under 

 Nordenskjølds Expedition. Derimod er den hverken obser- 

 veret ved Danmark, de britiske Øer eller Østkysten af 

 Nordamerika. 



to that of the preceding species. The fingers are, however, 

 without a trace of the fine teeth on the inner edge found 

 in young specimens of that species, and have the points a 

 little more incurvate. 



The false legs are appreciably longer than in the pre- 

 ceding species, those of the female (see fig. 4 a) attaining 

 about the length of the body, those af the male (fig. 4) con- 

 siderably exceeding it, and furnished, as in the preceding 

 species, with a conical lobe at the end of the 5th joint. 

 The 4 outer joints are armed along the inner edge with a 

 regular series of serrate spines (see fig. 4 e). The terminal 

 claw is relatively longer than in P. circularis, and has se- 

 veral teeth on the inner edge. 



The ainbulatory legs (see fig. 4) are distinguished 

 by their great length, nearly 4 times as great as that 

 of the body. They are everywhere beset with spiniform 

 setous processes, a good deal smaller however than in the 

 preceding species, and quite smooth on the edges. Of 

 the coxal joints, the 2nd is much elongated, considerably 

 exceeding in length the 2 others tåken together. The 

 femoral joint in the female is a good deal swollen in the 

 middle, in the male (fig. 4) much more slendcr and some- 

 what arcuate. The Ist tibial joint is about the length of 

 the femoral joint, whereas the 2nd is appreciably longer 

 and very narrow. The tarsal joint" (see fig. 4 f) is somewhat 

 Iarger than in the preceding species, obliquely truncate at 

 the extremity, and armed on the inner edge with several 

 spines, increasing in length outwards. The propodal joint is 

 well-nigh straight, relatively narrower than in P. circularis, and 

 armed on the inner edge with strong spines, the 4 or 5 

 posterior of which are characterized by considerable size. 

 The terminal claw is powerfully developed, falciform curvate, 

 and somewhat shorter than the propodal joint. As in the 

 preceding species, no trace of auxiliary claws can be detected. 



The outer egg-masses (see fig. 4) as in P. circularis. 



The colour of the animal is a more or less vivid yel- 

 low, in aged specimens changing into yellowish-brown. 



Oecurrence. On the coast oi Norway this species 

 would seem to be rarer than the preceding one. I have 

 tåken it in one or two localities on the West Coast, also at 

 Lofoten and on the [coast of Finmark as far as Vadsø. 

 It is met with under the same conditions as P. circularis 

 and most frequently in company with that species. 



Distribution. Like the preceding species, this is a 

 well-marked Northern form, and woidd also, therefore, appear 

 to attain its greatest development in the Arctic Seas. Be- 

 sides Norway, the animal has been recorded from Greenland 

 (Krøyer), and the Murman Coast (Jarzynsky), and 1 have 

 also had an opportunity of examining a single specimen 

 from the Kara Sea, tåken on Nordenskjøld's Expedition. 

 On the other hand it has not been observed either on the 

 coasts of Denmark or those of the British Islands; nor has 

 it been recorded from the eastern coast of North America. 



