31 



særdeles lang, udpræget leformig. med Inderkanten tilskjær- 

 pet og Enden gaaende ml i en sylskarp Spids; Bikløerne, 

 som hos foregaaende Art, yderst smaa og rudimentære, ikke 

 fremragende foran Endekloens Yderkant. 



Integumenterne er temmelig tykke men bøielige og 

 viser under Mikroskopet en rint granuleret Structur. 



Legemel er afhvidagtig Farve oghalvtgjennemskinnende, 

 saa at flere af de indre Dele skimtes mere eller mindre 

 tydeligt igjennem Huden. Sees Dyret fra Bugsiden | Fig. 

 .'lo. viser saaledes Buggangliekjæden sig temmelig tydeligt ; 

 den bestaar, som hos de øvrige til denne Familie horende 

 Former, kun af i Ganglier, idet det forreste Ganglion 

 mangler eller rettere er sammensmeltet med det følgende. 



Forekomst. Det ovenfor beskrevne Exemplar toges 

 ved Magerø, søndenom Trøndhjemsfjorden, paa et Dyb af 



«a. 'nu Favne. 



Fam. 3. Pallenidæ. 



Character. Saxlemmer vel udviklede; Følere mang- 

 lende; falske Fødder tilstede hos begge Kjøn. 



Bemærkninger. Ved de ovennævnte Characterer er 

 denne Familie vel skilt saavel fra foregaaende som etterføl- 

 gende Familie, imellem hvilke den har sin naturlige Plads. 

 Foruden de 3 i det følgende nærmere omtalte Slægter, 

 hoier herhen ogsaa den af Dohrn opstillede Slægt Nedpdlr 

 lene, hos hvem et Rudiment at Folere er tilstede. End- 

 videie tror jeg, som allerede ovenfor bemærket, at flere af 

 de af Hoek som Phoxiehilidier beskrevne Former fraChal- 

 lenger Expeditionen rettest bor henføres til denne Familie 

 og indordnes under en eller tiere nye Slægter. Hvad ende- 

 lig tie 3 af sidstnævnte Forfatter, ligeledes fra Challenger 

 Expeditionen, beskrevne Pallene-Årter angaar, saa synes 

 mig ingen af dem rigtigt at ville passe ind under nogen af 

 de 3 nordiske Slægter, og, da de ogsaa indbyrdes viser 

 ikke ubetydelige Forskjelligheder, skulde jeg være mest til- 

 bøielig til at antage, at de repræsenterer 3 nye Slægtstyper 

 henhorende til nærværende Familie. 



Gen. 5. Pallene, Johnston 1837. 



Slægtscharacter. Legemet glat, niere eller mindre 

 smalt, cylindriskt, med vel adskilte Sidefortsatser. Hoved- 

 segmentel forholdsvis stort, med tydelig Hals og stærkt ud- 

 videt Pandedel. De to sidste Kropssegmenter sammensmel- 

 tede med hinanden. Halesegmentet meget lidet, stumpt ko- 

 niskt, opadrettet. Øieknuden mere eller mindre ophøiet, 



margin exhibits a regular series of short, anteriorly curv- 

 ing spines, 18 — '2<) in number. The terminal claw is exceed 

 ingly long, distinctly falciform, with the inner margin shar- 

 pened andproduced at the extremity to au awl-like point ; 

 the auxiliary claws, as in the preceding species, exceedingly 

 small and riulimentary. not projecting lieyond the outer 

 margin of the terminal claw. 



The integuments are rather thick, hut flexible, and ex- 

 luliii under the microscope a tine. granular sculpturing. 



The body is whitish in colour and semi-translucent, 

 so that several of the inner parts are seen, more or less 

 distinctly, shining through the integument. Viewed-from the 

 ventral side (fig. •"> c), the animal accordingly exhibits, 

 pretty distinctly. the ventral cliain of ganglia; the latter 

 consists, as in the other forms belonging to this family, 

 of hut 4 ganglia, as the foremost ganglion is wanting. or 

 rather is fused into thai succeeding it. 



Occurrence. The specimen described above was tåken 

 ai Magerø, south of the Throndhjemsfjord, from a depth 

 of ahout liio fatheins. 



Fam. 3. Pallenidæ. 



Character. Chelifori well developed ; palpi wanting or 

 rudimentary; false legs present in both sexes. 



Remarks. liv the above given characters tliis family 

 is well distinguished, both from the preceding and the suc- 

 ceeding one, between which it has its natural place. Ex- 

 clusive of the ;> genera spoken of more at large in the 

 sequel, to this family also belongs the genus etablished by 

 Dohrn, Nespallene, in which a rudiment of palpi is present. 

 Moreover, 1 certainly think, as already noticed above, that 

 several of the forms from the Challenger Expedition, des- 

 cribed by Hoek as Phoxichilidiaus, should properly he refer- 

 red to this family. and be elassed under one or more new 

 genera. Finally. as to the 3 Pallene species from the 

 Challenger Expedition, likewiso described by that author, 

 nom- ofthem, it seems to me. can strictly be ranked under 

 anv of the ."> Northern genera,; and exhihiting as they do 

 differences bj no means tritiing. I am most inclined to 

 regard thein as representing 3 new generic types belonging 

 to the present family. 



Gen. 5. 



Pallene, Johnston 1*;;7. 



Generic Character. Body smooth. more or less slen- 

 der, cylindrical, with well separated lateral prbcesses. Ce- 

 phalic segment comparatively large, with neck distinct and 

 frontal part prominently expanded. The tw-o last segments 

 of the trunk coalescent. Caudal segment very small, obtusely 

 conic. directed upwards. Oculiferous tubercle more or less 



