95 



Folerne (Fig. 1 d) har nogen Lighed med samme 

 hos foregaaende Art, men synes lidt spinklere. Forholdet 

 af Leddene er omtrent som hos hin Art. alene med den 

 Forskjel, at sidste Led synes noget mindre og smalere. 



De falske Fedder er kun lidet længere end Legemet, 

 hvorved dog er at bemærke, at det undersogte Exemplar 

 synes at være en Hun. Randtornerne (Fig. 1 e) er ual- 

 mindelig tynde. dolkformige og ensformigt saugtakkede i 

 Kanterne, uden nogen særlig store basale Sidetænder. 



Gangfodderne (se Fig. 1) er temmelig stærkt forlæn- 

 gede, idet de er over 4 Gange længere end Legemet. De 

 er dog ikke af nogen ualmindelig Spinkelhed og afsmalnes 

 kun ganske svagt mod Enden; i sin hele Længde er de 

 besatte med meget fine, spredte Haar. Af Leddene er 2det 

 Lægled som sædvanlig det længste og omtrent 2'/ 2 Gang 

 længere end det terminale Afsnit. Dette sidste (Fig. 1 f) 

 forholder sig i flere Henseender eiendommebgt. Tarsal- 

 leddet er saaledes forholdsvis usædvanlig kort, medens Fod- 

 leddet udmærker sig ved en betydelig Udvikling. Det er 

 nemlig næsten l j- 2 Gang til saa langt som Tarsalleddet og har 

 Inderkanten noget udbuet samt bevæbnet med en tæt Rad 

 af temmelig lange, skjondt tynde Torner. Endekloen er 

 omtrent halvt saa lang som dette Led og temmelig kraftig, 

 med en eiendemmelig hornbrun Skygning ved Basis. Der- 

 imod er Bikloerne saa yderst smaa og rudimentære, at de 

 meget let vil kunne oversees, uden Tilhjælp af stærke For- 

 størrelser. 



Forekomst. Det ovenbeskrevne Exemplar blev under 

 Nordenskjøld's Expedition tåget i det kariske Hav paa et 

 Dyb af 60 F. 



30. Nymphon serratum, G. O. Sårs. 



(Pl. X, Fig. -'. 



-h). 



Nymphon serratum, G. 0. Sårs, Crustacea & Pycnogonida 

 nova etc. No. 50. 



— — - Hoek, Pycnogonida ..AVillem Barents-' 

 1. c, p. 16, Pl. I, fig. -21—28, Pl. II, fig. 29. 



— — Hansen, Karahavets Pycnogonider, p. 

 7, Tab. XVIII, Fig. 2, a— c. 



— G. 0. Sårs, Pycnogonidea borealia & 

 arctica, No. 30. 



Artscharacter. Legemet noget smækkert, med tem- 

 melig store vel skilte Sidefortsatser og 3 tilspidsede dorsale 

 Fremspring. Hovedsegmentet omtrent saa langt som de 3 

 falgende Segmenter tilsammen, Halsen af middelmaadig 

 Længde, Pandedelen kun lidet udvidet. Øieknuden noget 

 ophoiet, stump konisk, med Lindserne af middelmaadig 

 Størrelse. Snabelen af Hovedsegmentets Længde. Sax- 

 lemmerne ualmindelig smaa, Skaftet smalt cylindriskt, hge 

 fortilstrakt, Haanden neppe mere end halvt saa lang. med 

 Fingrene kortere end Palmen og stærkt indkrummede i 



The palpi (fig. 1 d) have some resemblance to those 

 in the preceding species, but appear to be a little more 

 slender. The relations between the joints are about the same 

 as in that species, with this difference only, that the last 

 joint seems to be somewhat smaller and more slender. 



The false legs are but little longer than the body, 

 in relation to svbich it is to be noted, however, that the 

 specimen examined seems to be a female. The marginal 

 spines (fig. 1 e) are remarkably slender, dagger-shaped, and 

 uniformly-serrate on the edges, without any particularly 

 large lateral teeth at the base. 



The arnbulatory legs (see fig. 1) are a good deal 

 elongated, as they are more than 4 times longer than the 

 body. They are not, however, exceptionally slender, and 

 taper but very slightly towards the extremity; they are beset 

 throughout their entire length with very delicate scattered 

 hairs. Of the joints, the 2nd tibial joint is, as usual, the 

 longest, about two and a half times longer than the terminal 

 section. The latter (fig. 1 f) is in many respects peculiar. 

 Thus, the tarsal joint is uncommonly short, whereas the pro- 

 podal joint distinguishes itself by a considerable develop- 

 ment, being almost half as long again as the tarsal joint, 

 with the inner edge somewhat arcuate and armed with a 

 dense series of rather long, though slender spines. The 

 terminal claw is about half as long as that joint, and 

 rather powerful, with a peculiar horny-brown tint at the 

 base. The auxiliary claws, on the contrary, are so very 

 minute and rudimentary, as to admit of being easily over- 

 looked without the aid of a strong magnifier. 



Occurrence. The specimen above described was 

 tåken on NordenskjohFs Expedition in the Kara Sea. at 

 a depth of 60 fathoms. 



30. Nymphon serratum, G. 0. Sårs. 



(Pl. X, fig. 2, a— h). 



Nymphon serratum, G. O. Sårs, Crustacea & Pycnogonida 

 nova etc. No. 50. 



Hoek, Pycnogonida „Willem Barents-' 

 1. e., p. 1(3, Pl. I, figs. 21—28, Pl. LT, fig. 29. 



— Hansen, Karahavets Pycnogonider. p. 

 7, Tab. XVIII, fig. 2, a— c. 



— — G. 0. Sårs, Pycnogonidea borealia & 

 arctica, No. 30. 



Specific Character. Body somewhat slender, with 

 rather large, well separated lateral processes and 3 acuminated 

 dorsal projections. Cephalic segment about as long as the 

 3 following segments tåken together, neck of moderate 

 length. frontal part but little expanded. Oculiferous tubercle 

 somewhat elevated, obtuse-conic, with the lenses of moderate 

 size. Proboscis the length of the cephalic segment. Cheli- 

 fori remarkably small, scape narrow-cylindric. extended 

 straight forward, hand hardly more than half as long, 

 with the fingers shorter than the palm and strongly 



