132 



Haar, hvorimod egentlige Randtorner mangler. Endekloen 

 er forholdsvis kort. neppe mere eiul '/s saa lang som Fod- 

 leddet. og uden Spor af Bikloer. 



De ydre Ægmasser (se Fig. 1 b), der ialmindelighed 

 er fæstede til de falske Fødders 4de Led, er uregelmæssig 

 kugledannede og indeholder et begrændset Antal af mid- 

 delstore' Æg, omgivne af en fælles tynd Membran. 



Legemets Farve er mere eller mindre tydelig gulagtig, 

 med mørkebrunt gjennemskinnende Tarmsystem. Men som- 

 oftest er Dyret saa tæt besat med Mudder og andre frem- 

 mede Dele, at Farven er meget vanskelig at erkjende. 



Forekomst. Jeg har observeret denne eiendomme- 

 lige Pycnogonide ganske enkeltvis paa forskjellige Punkter 

 af vor Kyst, nemlig ved Christiansund, ved Valdersund 

 nordenom Trondhjemsfjorden, og ved Kvalo paa Nordlands- 

 kysten; Dybden 50— 100 Favne. Under Nordhavs Expedi- 

 tionen toges et enkelt Exemplar i Havet mellem Finmarken 

 og Beeren Eiland (Stat. 290) paa et Dyb af 191 Favne. 

 Desuden har jeg havt Anledning til at undersøge et enkelt 

 Exemplar, tåget under Nordenskjolds Expedition i det 

 Kariske Hav. 



Udbredning. Arten er forst af Kroyer beskreven 

 fra Grønland og senere af Jarzynsky anført fra den mur- 

 manske Kyst, samt af Dr. Hansen fra det Kariske Hav. 

 Den maa ifølge denne sin Forekomst utvivlsomt ansees for 

 ■ 'li æete arktisk Form. 



Gen. lo. A-Scorliyncbrvis, G. 0. Sårs. 1876. 



Slægtcharaeter. Legemet smalt og forhenget, med 

 skarpt afsatte Segmenter og vidt adskilte Sidefortsatser. 

 Hovedsegmentet med forlænget Hals og kølleformigt udvidet 

 Pandedel; Halsfortsatserne utydelige. Halesegmentet sær- 

 deles smalt, cylindriskt. Øieknuden af forskjellig Form, 

 ialmindelighed uden Synselementer. Snabelen af betydelig 

 Størrelse, næsten pæreformig og mere eller mindre ind- 

 bøiet under Legemet, Skaftet meget kort. Saxlemmerne 

 særdeles smaa, Skaftet 1 -leddet (eller 2-leddet), Haanden 

 hos fuldvoxne Individer rudimentær, af triangulær Form. 

 Folerne stærkt forlængede, af en lignende Bygning som 

 hos foregaaende Slægt. De falske Fodder 10-leddede, 

 Endedelens Iste Led stærkt forlænget, Randtornerne i 

 tiere Rækker, saugtakkede. Gangfodderne af middelmaa- 

 dig Længde. meget spinkle, fint haarede eller glatte, 

 2det Hofteled hos Hunnen stærkt opblæst, Laarleddet 

 hos Hannen med m afrundet Knude ved Basis, Tarsal- 

 Leddet kort eller maadeligt forlænget, Podleddet lineært, 

 ikke krummet, Endekloen forlænget, uden Bikloer. De 

 ydre Ægmasser forholdsvis smaa. Æggene faa og af be- 



quite faintly bent , and a little tumefieated in its basal 

 part. Both joints are closely beset with short hairs, whilst, 

 on the other hand. real marginal spines are absent. The 

 terminal cia w is relatively short, scarcely more than '/3 

 as long as the propodal joint, and without trace of aux- 

 iliary elaws. 



The outer egg-masses (see fig. 1 b). which are usually 

 secured to the 4th joint of the false legs, are irregularly 

 globular in form, and eontain a limited number of medium- 

 sized ova enveloped in a thin common membrane. 



The colour of the body is more or less distinct yel- 

 lowish, with dark brown, transparent intestinal system. 

 But most commonly the animal* is so densely covered 

 with mud and other foreign substances that the colour is 

 very difficult to detect. 



Occurrence. I have observed this peculiar Pycno- 

 gonid quite occasionally, at 3 different places on the Nor- 

 wegian coast viz. at 'Christianssund. at Valdersund north 

 of the Trondhjem Fiord, and at Kvalo on the coast 

 of Nordland; ' depth 50—100 fathoms. On the North 

 Atlantic Expedition a single specimen was tåken in the 

 ocean between Finmark and Beeren Island (Stat. 290) at 

 a deptli of 191 fathoms. I have had an opportunity, 

 besides, of examining a single specimen tåken in the Kara 

 Sea, on NordenskjokVs Expedition. 



Distribution. The species is first described by Kroyer 

 from Greenland, and subsequently recorded by Jarzynsky 

 from the Murman Coast, also by Dr. Hansen from the 

 Kara Sea. It must, according to that occurrence, be in- 

 dubitably regarded as a genuine Arctic form. 



Gen. 13. _A.scoi'liynohixs, G. O. Sårs. 1876. 



Generic Characters. Body narrow and elongated, 

 with sharply defined segments and widely separated lateral 

 processes. Cephalic segment with elongated neck and 

 claviformly expanded frontal part; the cervical processes 

 indistinct. Caudal segment particularly narrow, cylin- 

 drical. Ocular tubercle of variable form, usually with- 

 out visual elements. Proboscis of considerable size, al- 

 most piriform, and more or less folded in under the 

 body. scape very short. Chelifori particularly small, scape 

 single-jointed (or 2-jointed), hand in full-grown individuals, 

 rudimentary, triangular in form. Palpi greatly elongated, 

 of similar structure as in the preceding genus. False legs 

 10-jointed, Ist joint of the terminal part greatly elongated, 

 marginal spines in several series, serrated. Ambulatory 

 legs of medium lengt h. very slender, finely setous or smooth, 

 2nd coxal joint in female, greatly expanded, femoral joint 

 in male with a rounded nodule at the base, tarsal joint 

 short, or only slightly elongated, propodal joint linear, not 

 bent, terminal claw elongated, without auxiliary claws. 

 The ? outer egg-masses relatively small, the ova tew in 



