16 



end det følgende Segment, Frontaltornerne rykkede nær 

 sammen, den kraveformige Udvidning forsynet oventil i 

 .Midten med en kort Indbugtning. Halesegmentet aflangt 

 ovalt, afstumpet i Enden og til hver Side bevæbnet meden 

 kurt Tmn. Øieknuden nøiagtig i Midten af Hovedsegmen- 

 tet, hoi. konisk tilspidset, de 4 Oorneæ forholdsvis smaa, 

 nærmere Basis end Spidsen. Snabelen niere end halvt saa 

 lang som det øvrige Legeme og neppe smulere end dette. 

 svagt udvidet paa Midten. De falske Fødder hos Hannen 

 omtrent af Legemets halve Længde, 'idet Led størst, ote 

 Led større end ethvert af de 2 foregaaende og [etterføl- 

 gende, stærkt krummet, sidste Led trekantet, neppe halvt 

 saa langt som foregaaende, med 2 korte Torner i den indre 

 Kant. G-angfodderne næsten 3 Gange Iængere end Lege- 

 met, bevæbnede med spredte Torner af ulige Størrelse, 

 2det Hofteled Iængere end de 2 øvrige tilsammen, Laar- 

 leddet dobbelt saa langt som Hofteafsnittet og endende 

 udåd med en konisk med 2 uligelange Torner bevæbnet 

 Fortsats. Iste Lægled kortere end 2det, der omtrent er af 

 Laarleddets Længde. Tarsalleddet skjævt afrundet, Fodled- 

 det omtrent 4 (range Iængere end bredt, endende udåd i 

 et spidst Hjørne, Inderkanten ved Basis bevæbnet med 5 

 stærke Torner, de 2 yderste jevnsides stillede, Endekloen 

 mere end halvt saa lang som Fodleddet. Bikløerne omtrent 

 halvt saa lange som Endekloen. Legemet gjennemsigtigt, 

 med Tarmen og dens Sideudvidninger af grøn Farve. Le- 

 gemets Længde hos Hunnen 4""". Spandvidde 23"""; Han- 

 nen noget mindre. 



Bemærkninger. At den ved Norges Kyster forekom- 

 mende Form er identisk med Montagu's Art. derom kan 

 der, neppe være nogen Tvivl, og heller [ikke den af Hoek 

 vei! Frankriges Nordkyst undersøgte Form synes i nogen 

 Henseende at skille sig fra vor Art. Da Hoek har tåget 

 sine Exemplarer paa den selvsamme Lokalitet, hvorfra 

 (Trulie har sin P. læris. og har paavist mindre Different ser 

 Ims ulige udviklede Individer, holder han Grube's Art for 

 identisk med sin. ligesom han anser det for sandsynligt, at 

 den af Hesse sum P. inermis opførte Form heller ikke er 

 artsforskjellig. Hvad endelig de to af Dohrn fra Golfen 

 ved Neapel opførte Arter angaar, saa viser begge saavel 

 stor Overensstemmelse indbyrdes som med den typiske Art. 

 Den ene af Arterne, P. charybdæus opgives imidlertid at 

 være unne end dobbelt saa stor som den anden. P.vulgaris, 

 der derimod i saa Henseende ganske svarer til vor Art. 

 med hvilken jeg derfor er tilbøielig til at anse den for 

 identisk. Philippi's Endeis gracilis maa ligeledes aabenbart 

 henregnes til denne Art. Som forskjellige Arter bliver 

 saaledes kun tilbage P. charybdæus Dohrn. der forøvrigt, 

 naar afsees fra dens ualmindelige Størrelse, kun lidet synes 

 at skille sig fra Montagu's Ait. og P. meridionalis Bøhm, 

 sum ifølge sit Findested (Singapoor) vel neppe kan være 

 identisk med ungen af de europæiske Arter. 



Beskrivelse. Legemets Længde hos fuldt udviklede 

 Hunner er omkring 4""". med en Spandvidde af 23""". 

 Hanneine synes sum Regel at vane noget, skjondt ikke 

 et, mindre end Hunnerne. 



Af Form er Legemet (se Pl. I. Fig. 3, .'i a. 3 c, 3 d) 



than that suceeeding it. frontal spines near together, the 

 collar having above in the middle a slight sinus. Caudal 

 segment oblong-oval. truncate at the extremity. and on 

 either side armed with a short spine. Oculiferous tubercle 

 exactly in the middle of the cephalic segment, prominent, 

 aeumina.te. the 4 corneæ comparatively small, nearer the 

 base than the point. Proboscis more than half as long as. 

 and hardly slenderer than the rest of the body, slightly 

 expanded in the middle. The false legs in the male about 

 half the length of the body. 2nd joint largest. 5th joint 

 larger than either of the 2 preceding or suceeeding it. 

 sharply curved, last joint triangular, scarcely half as long 

 as the preceding. with 2 short spines on the inner margin. 

 Ambulatory legs well-nigh thrice the length of the body. 

 armed with scattered spines. unequal in size. 2nd eoxal 

 joint longer than the 2 others tåken together. femoral joint 

 twice as long as eoxal seetion, and terminating out- 

 wards in a conical process, armed with 2 spines of dif- 

 ferent length, Ist tibial joint shorter than 2nd. the 

 latter about as long as femoral joint, tarsus obliquely 

 rounded, propodus about 4 times longer than broad, term- 

 inating outwards in a sharp corner, inner margin furnished 

 at base with 5 strong spines, the 2 outermost placed side 

 by side. terminal claw more than half as long as propo- 

 dus, auxiliary elaws about half the length of terminal claw. 

 Body translucent. with the intestine and its lateral ex- 

 pansions of a green colour. Length of body in the female 

 4"'"'. extent 23"""; male somewhat smaller. 



Remarks. - That the form occurring on the coasts 

 of Norway is identical with Montagu's species. can hardly 

 admit of doubt; nor indeed would the animal observed by 

 Hoek on the north coast of France appear to differ in 

 any respect from the present species. Hoek having tåken 

 his specimens in precisely the same locality whence Grube 

 obtained his P. lævis, and having shown too minor differ- 

 ences to characterise unequally developed individuals. he 

 holds Grube's species as identical with his own. regarding 

 moreover as probable that P.inermis, established by Hes-,e. 

 is not either specifically distinct. Pinally, as to the two 

 species established by Dohrn from the Bay of Naples. 

 both exhibit close agreement alike individually and with the 

 typical species. One of the species, P charybdæus. is 

 stated however to be more than" double the size of the 

 other. P. vulgaris, which in that respect agrees exactly 

 with out species. with which therefore I am disposed to 

 consider it identical. Philippi's Endeis gracilis must like- 

 wise obviously be referred to that species. Hence. as dis- 

 tinct species we have left only P. charybdæus Dohrn, which. 

 apart from its remarkable size would appear to differ but 

 little from Montagus"s form. and P. meridionalis Bohm. 

 that, judging from its habitat (Singapoor). can hardly be 

 identical with any of the European species. 



Description. — The length of the body in fullv de- 

 veloped females reaches about 4""". with an extent of 23""". 

 The males would seem as a rule to be somewhat, though 

 not much, smaller than the females. 



In form (see PLI. figs. 3. 3 a. 3 c. 3 d) the body is 



