53 



derkanten af denne Finger tindes en temmelig lav lamelle- 

 formig Udvidning, derfortil, strås indenfor Fingrenes Spids, 

 danner et vinkelformigt Fremspring. Derimod er Inder- 

 kanten af den bevægelige Finger ganske glat. 



Nedenfor Saxlemmernes Insertion bemærkes ise Fig. 

 3 ;i hos alle de undersøgte Exemplarer lil hver Side et 

 lidet knudeformigt Fremspring. Da disse Fremspring netop 

 er beliggende der, hvor hos andre Pycnogcfnideer Følerne 

 pleier at være fæstede, er der al Grund til at anse dem 

 tor et ubetydeligl Rudiment at' disse Lemmer. Eos ingen 

 af de 2 ovrige Arter har jeg kunnet opdage det mindste 

 Spor af disse Knuder. 



De falske Kodder forholder sig. som hos de 2 ovrige 

 Arter, unget forskjelligt hos de 2 Kjøn, idet de hos Han- 

 nen (Fig. 3 d) er betydelig længere end hos Hunnen (Fig. 

 .'! c), hvad der især skyldes den stærkere Udvikling af 5te 

 Led. ved hvis Ende den sædvanlige børstebesatte Lap fore- 

 findes. Di' ydre Led stemmer, i Henseende til det ind- 

 byrdes Længdeforhold, temmelig uoie overens med samme 

 hos foregaaende Art. Derimod viser de laterale Torner 

 et meget afvigeude Udseende. De er nemlig (se Fig. 3 f) 

 for det første forholdsvis meget større og tykkere, bredt 

 lancetformige, og dernæst mangler de ganske Saugtakker. 

 idet Randen kun viser et uregelmæssigt bølgeformigt 

 Forløb. 



Gangfødderne ise Fig. 3j viser en temmelig robust 

 Bygning, men er betydelig stærkere forlængede end hos den 

 typiske Art. næsten 4 Gange længere end Legemet, og ad- 

 skiller sig ogsaa i Detaillerne meget bestemt fra samme 

 hos begge de ovrige Arter. De er overalt tæt besatte med 

 meget smaa. næsten mikroskopiske Haar, der giver dem et 

 tint loddent Udseende. Hoftepartiet er her forholdsvis 

 kort, neppe længere endBredden mellem de midterste Side- 

 l urt satser, og Forskjellen i Længde mellom dets 3 Led 

 mindre end hos de 2 ovrige Arter. Laarleddet er derimod 

 meget stærkl forlænget, omtrent 2 1 / g Gang længere end 

 Hoftepartiet, og er hos Hunnen, som sædvanlig, tykkere 

 end hos Hannen. Iste Lægled er kjendelig kortere end 

 Laarleddet. medens 2det Lægled, som sædvanlig, er det 

 længste af alle. Tarsalleddet (se Fig. 3 g) er forholdsvis 

 betydelig større end hos de 2 foregaaende Arter, hengere 

 end bredt og suceessivt noget udvidet mod Enden. Der- 

 imod er Fodleddet forholdsvis mindre kraftigt udviklet. 

 neppe mere end dobbelt saa langt som Tarsalleddet, og 

 noget afsmalnonde mod Enden. Det er i Inderkanten be- 

 væbnet meil circa 5 større Torner, hvoraf 1 ei' tiestet om- 

 trent i Midten, de ovrige nærmere Basis. Endekloen er 

 stærkt forhenget, vel saa lang som Fodleddet, koniskt til- 

 spidset og mindre stærkt krummet end hos de 2 ovrige 

 Arter. 



Farven er i levende Tilstand omtrent som hos C. mal- 

 Irnliilii. nemlig ensformig hvidgul. 



Forekomst og Udbredning. Ved vore Kyster har 

 jeg kun observeret nærværende Art paa et eneste Punkt, 

 nemlig ved Vadsø, hvor jeg for mange Aar siden tog et 



a distinct although slight incurvation. < )n the ii 



- J dgc 



of this tinger a, rather low lamelliform expansion occurs, 

 which, anteriorly, .just within the point of the fingers, con- 

 stitntes nu angular projection. The inner edge of the mo- 

 bile tinger is, on the cbntrary, quite smooth. 



lielow the insertion of the chelifori was found (see 

 fig. 3ai. in all the speciraens examined, on either side, 

 a small tuberculiform projection. Those projections being 

 loeated just where the palpi in other Pycnogonidea occur, 

 there is everv reason to regard thera as a trilling rudiment 

 of these limbs. ln neither of the 2 other species have I 

 succeeded in discovering the slightest trace of the said 

 projections. 



The false legs deviate somewhat. as in both the other 

 species. in the 2 sexes. those of the male l tig. 3 d) being 

 considerably longer than those of the female (fig. 3 c), 

 mainlv arising from the greater development of the oth 

 joint, at whose extremity the usual setiferous lobe occurs. 

 The outer joints agree, as to their mutual relative propor- 

 tions in leiigth, rather closely with those of the preeeding 

 species. On the other hand. the lateral spines exhibit a 

 verv different appearanee. They are (see fig. 3 f), in the first 

 place, relatively much larger and thicker, broadly lanceolate, 

 aud. in the second place. they are totally destitute ol saw- 

 teeth, the edge siniply exhibitiug an irregular, undulatorv line. 



The ambulatory legs (see tig. 3) exhibit a rather 

 robust structure but are much more elongate than in the 

 typical species, attaining well-uigh 4 times the length of 

 the body, differing, too. in several details, very deoidedlv. 

 from those in both the other forms. They are everywhere 

 densely besel with verv minute, almost microscopic hairs, 

 whieh gives thein a delicate downy appearanee. The coxal 

 part in this animal is relatively sliort, hardlv longer than 

 the breadth between the mesial lateral processes, and the 

 difference in length between its 3 joints is less than in the 



2 other species. The femoral joint, on the other hand. is 

 verv much elongated. about twø and a half times longer 

 than the coxal part. and. as usual. thicker in the female 

 than in the male. The Ist tibial joint is appreciably 

 shorter than the femoral one. whilst the 2nd tibial joint 

 is, as usual, the longest of all. The tarsal joint (see fig. 



3 g) is. relatively, a good deal larger than in the 2 preeeding 

 species. and somewhat gradually expanded towards the end. 

 On the other hand, the propodal joint is relatively less 

 powerfully developed. hardlv more than twiee as long as the 

 tarsal joint, and tapers a little towards the extremity. It 

 is arm ed on the inner edge with about 5 largish spines. 

 one of which is affixed near the middle, the others nearer 

 the hase. The terminal elaw is much elongated. rather longer 

 than the length of the propodal joint, conicallv aruminated. 

 ■nid less sharplv eurved than in the 2 other species. 



The colour is. in the live state, about as in C. 

 malleolata, \iz.. a uniform whity yellow. 



Occurrence and Distribution. On the coasts of Nor - - 

 way, I have ohserved the present species in but one local- 

 itv. viz. at Vadso. where. many years ago, I took a soli- 



