Tab. XXII. Fig. 8", der ere mere eller mindre ind- 

 trukne. 



Mimdskiven. som er nøgen og blottet for Grusbedæk- 

 ning. er lidt hvælvet og forsynet med Folder, der udstraale 

 fra den lidt aflange Mund og blive bredere mod Peripherien, 

 Tab. XXII. Fig. 8. hvor der er 2 Rækker meget korte, 

 koniske og retraktile Tentakler — 12 i hver Række. Ten- 

 taklerne i den indre Ra»kke ere tykkere og lidt kortere 

 end i den ydre. Mumien er næsten rund med foldet Rand 

 og uden Gonidiegrube. 



Stilken er nøgen, rund, glat og glindsende, lader sig 

 let sammentrykke og bliver noget bredere (tykkere) ned 

 imod Fodskiven, Tab. VI. Fig. 3. 4; Tab. XXII. Fig. 8. 

 Denne er lidt aflang, glat. noget hvælvet paa den øvre 

 Flade. imedens den undre er lidt konkav og forsynet med fine 

 Folder, der gaa vifteformigt fra Ceiitruin mod Peripherien : 

 den er fæstet til et lidet Stykke af Stilken af Bathycrinus 

 Carpenteri. 



Farven. Den inkrusterede Del af Kroppen er graa- 

 grøn, spillende lidt i det Violette; men borttages Krusten, 

 viser Huden sig at være hvid. Mundskiven med Tentakler 

 er bleg rosenrød. Stilken er næsten farvelos, imedens 

 Fodskiven har et fint rødligt Skjær. Tab. VI. Fig. 3. 4. 



Af dette ret mærkelige Dyr hur Expeditionen kun 

 1 Exemplar fra en Dybde af 1050 Favne i den kolde 

 Area. Det var i meget stormfulde Dage, saa Skibet var 

 i stadig rullende Bevægelse, der i hoi Grad vanskelig- 

 gjorde Dndersøgelserne. Det lykkedes mig dog at faa 

 Dyret tegnet levende og at faa gjort nogle Xotiser med 

 Hensyn til dets Ydre; men da det stedse holdt sig tem- 

 melig sammentrukket, uagtet jeg havde det i flere Dage i 

 Observationskarret, kunde jeg intet bestemme angaaende 

 Tentaklerne, - - kun saanieget iagttog jeg. at Stilken til 

 enkelte Tider holdt sig ganske opret, til andre hoiede sig, 

 imedens Kroppen udvidede og sammenbrak sig - Bevæ- 

 gelser. som fulgtes af Stilken, saaledes nemlig, at naar 

 Kroppen tråk sig sammen, blev Stilken smalere, og naar 

 den udvidede sig. svulmede Stilken op. I min Notisebog 

 var Dyret opført blandt Zoantherne, med hvilke det havde 

 adskillig Lighed, og det er derfor, at det paa Planenerne 

 har faaet Plads iblandt disse. Da jeg kun havde et 

 Exemplar at raade over. opstod Spørgsmaalet, om jeg 

 skulde otre dette i Videnskabens Tjeneste for muligens 

 ved en anatomisk-histologisk Undersogelse at kunne faa 

 bestemme dets systematiske Plads, eller lade det blive 

 staaende i Samlingen som en ubestemmelig Gjenstand. Jeg 

 vakte det lorste. os: im ei' kun tilbade den øverste Del af 

 Kroppen, samt Tversnit af Kropsvæggen og hele Stilken 

 med Fodskiven. 



Dm anatomisk-histologiske Undersøkelse. Ved at aabne 

 Dyret efter Længden fra Mundaabningen til Stilkens Begyn- 



bottoni 2 — 4 suckers are observed f Pl. XXII. fig. S a ), 

 more or less retracted. 



The oral disc, which is bare and free of any sandy 

 covering, is a little arcuate, and is furnished with folds, 

 which radiate from the slightly oblong mouth and become 

 broader towards the periphery (Pl. XXII, Fig. 8); at which 

 point there are 2 series of very short conical retractile 

 tentacles — 12 in each series. The tentacles in the inner 

 series are a little thicker and shorter than those of the 

 outer series. The oral aperture is almost circular, has a 

 folded margin and no gonidial recesses. 



The stem is bare. round. smooth and shining, and 

 may be easily compressed. It becomes somewhat broader 

 (thicker i dowivwards towards the pedal disc (Pl. VI. fig. 3, 4; 

 Pl. XXII, fig. 8). The latter is slightly oblong. smooth, 

 somewhat arcuate on the upper surface, whilst its under 

 surface is slightly concave, and is furnished with fine folds 

 issuing. in fan-shape, from the centre to the periphery; it 

 is secured to a small piece of the stem of Bathycrinus 

 Carpenteri. 



TJie colour. The encrusted portion of the body is 

 greyish green witli a violet play of colour, but if the crust 

 is removed the integument appears to be white. The oral 

 disc and the tentacles are pale rose-red. The stem is 

 almost colourless, whilst the pedal disc has a fine reddish 

 tinge i Pl. VI. fig. 3. 4). 



The expedition obtained only one specimen of this very 

 remarkable animal, at a depth oi 1050fathoms in the cold 

 area. The weather was very stormy at the time. and 

 the vessel hail a constant heaving and rolling movement, 

 which in a mvat degree obstructed the investigations. I was, 

 however, fortunate enough tu obtain the animal drawn in 

 the live state, and to jot down some observations in regard 

 to its exterior; but as it constantly kept itself pretty much 

 shrunk together, although I had it for several days in the 

 glass vessel for ohservation, I could determine nothing in 

 respect of the tentacles, only so much did I observe viz. 

 thai the stem at some times kept itself quite erect and 

 at other times became bent. whilst the body expanded and 

 contracted — movements which were participated in by the 

 stem in such manner, that when the body contracted the 

 stem became attenuated and when the body expanded the 

 stem became tumified. In my memorandum-book the animal 

 was placed among the Zoanthidæ. to which it had con- 

 siderable resemblance, and it is owing to this that it has 

 been placed among them in the illustrative plates. As I 

 only had one specimen at my disposal, the question arose 

 whether I should sacrifice it in the service of science, in 

 order, possibly, by an anatomo-histological investigation to 

 be in a position to determine its systematic position, or 

 whether I should let it remain uninjured in the collection 

 as an object incapable of detennination. I ehose the first- 

 uanieil course, and. now, there only remains the uppermost 

 part of the body. also a section of the body-wall, and the 

 entire stem with the pedal disc. 



Tlie anaionio-lfistdlogival examiuation. Up on dissecting 

 the animal longitudinally. from the oral aperture to the 



