106 



\div Side ud i et stærki tornformigt Fremspring; 2 andre 

 mindre Torner sees paa den ovre Flade. Det følgende 



Led «■)• ikke meget længere og gaar ligeledes ved Enden 

 paa den ydre Side ud i en stærk Torn. De 2 følgende 

 Led er tynde og forlængede, næsten ai' samme Længde 

 indbyrdes, og det første ai' dem har ligeledes Enden ud- 

 draget i en spids Torn. Svoben (se Fig. 26) er ganske 

 kort. omtrent halvt saa lang som Skaftets sidste Led og 

 bestaar kun af 3 simpelt cylindriske Lcd, uden Torner og 

 kun forsynede med nogle korte Haar. 



Munddelene viser ingen væsentlig Forskjel fra samme 

 hos den typiske Art. 



De 4 første Fodpar er ligeledes idethele af samme 

 Udseende som hos hin Art, alene med den Forkjel, at der 

 fra Enden af Basalledet paa de 3 bagerste af disse Par 

 udgaar en skarp, bagudrettet Torn. 



De 3 bagre Fodpar aftager stærkt i Længde bagtil 

 og er udmærket derved, at deres Basalled i Midten af den 

 bagre Kant har et stærkt tandformigt Fremspring. 



Brystposen er som hos A. baffini sammensat af 3 

 Par tydelige Plader. 



Bagkroppens Lemmer viser ingen væsentlig Forskjel 

 fra samme hos A. baffini. 



Farven var i levende Tilstand hvidagtig, med et svagt 

 grønligt Skjær, der vel for en Del skrev sig fra de i 

 Brystposen indsluttede Æg. De fleste af Exemplarerne 

 var imidlertid ved Optagelsen saa tæt besat med Smuds 

 og forskjellige fremmede Partikler, der havde fæstet sig 

 paa og mellem de talrige Pigge, at Legemets Form og 

 Farve kun vanskeligt kunde erkjendes. 



Længden af de største Exemplarer overskred ikke 9""". 



Forekomst og Udbredning. 3 Exemplarer, alle Hun- 

 ner, af denne distincte Form toges under Expeditionens 

 Iste Togt paa samme Sted (Stat. 18). hvor foregaaende 

 Art erholdtes. Under 2det Togt fandtes enkelte Exempla- 

 rer, ligeledes Hunner, af samme Art paa 2 andre Lokali- 

 teter i Havet udenfor Helgeland og Lofoten (Stat. 124 og 

 164), Dybden fra 350 til 457 Favne. Samtlige Stationer 

 tilhører den kolde Area. 



Artens for Tiden hekjendte Udbredning er saaledes 

 Havet udenfor Norges ydre Havbanker fra den 63de til 

 den 69de Bredegrad. Samme Art er imidlertid, som jeg 

 har kunnet overbevise mig om ved et mig af Norman vel- 

 villigt meddelt Individ, ogsaa tåget under Valorous' Ex- 

 pedition i de arktiske Farvande. 



thick, and at the end juts forth on the outer side as a 

 strong spiniform projeetion ; 2 other smaller spines are 

 seen on the upper surface. The succeeding joint is not 

 much longer, and also juts forth at the end from the outer 

 side as a strong spine. The 2 succeeding joints are slender 

 and elongate, almost uniform in length, and the first has 

 likewise the end produced as an aeute spine. The flagel- 

 lum (see fig. 26) is quite short, about half as long as the 

 terminal joint of the peduncle, and consists of only 3 

 simple cylindric joints, without spines, and furnished with 

 merely a few short hairs. 



The oral appendages exhibit no essential difference 

 from those in the typical species. 



The 4 first pairs of legs have likewise. on the whole, 

 the same appearance as in that species, saving only that 

 a sharp, posteriorlv directed spine proceeds from the end 

 of the basal joint on the 3 hindermost of those pairs. 



The 3 posterior pairs of legs diminish very much in 

 length posteriorly, and are characterized by their basal 

 joint having in the middle of the posterior margin a strong 

 dentiform projeetion. 



The marsupium is composed, :is in A. baffini. of 3 

 pairs of distinctly developed plates. 



The abdominal limbs exhibit no essential difference 

 from those in A. baffini. 



The colour. in a living state, was whitish, with a 

 faint greenish tinge, in part no doubt arising from the 

 eggs in the marsupium. Most of the specimens, however, 

 were thickly incrusted with mud and other foreign substan- 

 ces, adhering to and between the numerous spikes, tbiis 

 rendering the form and colour of the body extremely diffi- 

 cult to determine. 



The length of the largest examples did not reach 

 more than 9""*. 



Oeeurence and Distribution. — Three specimens of 

 this distinct form. all of them females, were tåken on the 

 first cruise of the Expedition. in the same locality (Stat. 

 18) where the preceding species occurred. On the second 

 cruise, a few examples were obtained of the same species, 

 likewise females. in two other localities, viz. off Helgeland 

 and Lofoten (Stats. 124 and 164); depth ranging from 350 

 to 457 fathoms. The Stations lie all of them in the 

 cold area. 



The distribution of the species, as at present known, 

 extends accordingly throughout the ocean tract lying off 

 the outer banks of the Norwegian coast, from the 63rd to 

 the 69th parallel of latitude. The same form was, how- 

 ever, as I have found. from the examination of a specimen 

 kindlv sent me by Mr. Norman, likewise tåken in the 

 waters of the Polar Sea, on the British Expedition with 

 the "Valorous." 



