133 



round the oral aperture, and with (larker folds. The ten 

 tacles arr more intensely red thau the oral disc, but some- 

 what paler in colour at the extremities. 



Paa Æggestokkene hos Epizoanthus glacialis fandtes 

 en Parasit. der var temmelig hyppig, og som jeg er i Tvivl 



om. hvorvidt den tilhører Plante- eller Dyreriget. Den 

 sad imellem Endothelcellerne, der beklæde Æggestokkene 

 og syntes at være klæbet sammen med dem ved en kort 

 Stilk, saa det havde sine Vanskeligheder at isolere den 

 ganske. Den var overmaade liden og kunde ikke iagttages 

 aden ved meget stærke Forstørrelser, og da. den frembød 

 forskjellige Udviklingsstadier, er det sahdsynligt, at den 

 ndvikler sig hos den Vært, der har Æren af at være 

 gjæstet af den. 



Jeg skal nu beskrive den. saagodt Materialet tillader 

 det. Sporerne ere runde, mørke, næsten uigjennemsigtige, 

 uden nogen Membran og bestaar af en tilsyneladende jevn 

 Protoplasmamasse, Tab. XXV, Fig. 1 e. Disse Sporer 

 forhenge sig i to modsatte Retninger og a ut age en elliptisk 

 Form. Der danner sig nu en Membran omkring den for- 

 længede Spore, hvilken er ganske klar. og Indholdet viser 

 sig da at beståa af en brun, næsten homogen Protoplas- 

 mamasse, Tab. XXV, Fig. 1/; paa et hengere fremskredet 

 Stadium bliver Membranen overmaade tydelig, og det inde- 

 holdte Protoplasma har kornet sig. Tab. XXV. Fig. 1 g, 2. 



Nu udvider Ellipsens begge Ender sig. blive spidsere 

 og ganske klare. Tab. XXV. Fig. 3 a. Membranen har 

 tiltaget i Tykkelse, men er temmelig klar, og indenfor den 

 har Protoplasmaet differentieret sig saaledes, at der i Midten 

 sees to tydelige Kjerner, Tab. XXV. Fig. 3 h. og to sær- 

 egne Legemer (muligens vordende Embryoner). Tab. XXV. 

 Fig. 3 c, i Protoplasmamassen, samt to Vacuoler, som ligge 

 mod begge Ender og egentlig udenfor Protoplasmaet. Tab. 

 XXV. Fig. 3 d. Det forekommer mig, at denne parasi- 

 tære Skabning nærmest inaa henføres til tidligere Stadier 

 af en Gregarine, som har fundet sin Regning i at tåge 

 Bolig hos en Epizoanthus, der lever i den kolde Area paa 

 457 Favnes Dyb. De for Gregarinerne saa eiendommelige, 

 forlængede Sække (Schleuche) eller kidkapslinger fandt 

 jeg ikke; men ser man til Sporernes Beskaffenhed, den 

 tykke, klare Membran, der omgiver Protoplasmaindholdet 

 (Embryonet) og senere dettes Differentieren, saa vil man 

 heri linde saa megen Lighed med. hvad der er kjendt at 

 enkelte Gregarineforinérs (Sporocoernes) Udvikling, at det 

 nok tor hænde, at min Antagelse er rigtig. 



( )n the ovaries of Epizoanthus glacialis a parasite 

 was observed, appearing with considerable frequency, re- 

 garding which I am in doubt whether it pertains to the 

 vegetable or the animal kingdom. It was seated between 

 the endothelial cells that clothe the ovaries. and appeared 

 to be glued to than by means of a short stalk, so that it 

 was not an easy matter to isolate it completely. It was 

 extremely small aud could not be observed except under 

 great magnification, and. as it presented itself in various 

 stades of development, it is probable that it developes 

 itself ;it tin- expense "f the host who has the honour of 

 entertaining it. 



I shall now describe it. as well as the material at 

 my disposal permits. The spores are round, dark. almost 

 opaque, have no membrane, and consist of an apparently 

 uniform protoplasmic substance (Pl. XXV, rig. 1 ei. These 

 spores become prolonged in two contrary directions and 

 assume an elliptical form, A membrane is now formed 

 round the prolongated spore, which is quite translucent, 

 and the contents then show themselves to consist of a 

 brown, almost homogeneous protoplasmic substance (Pl. 

 XXV. fig. 1 /); in a more advanced stage the membrane 

 becomes extremely distinct, and the protoplasmic substance 

 contained has become granular (Pl. XXV. fig. 1 </. 2). 



Then both extremities of the ellipsis become widened 

 out, become more acuminated and quite translucent iPl. 

 XXV, fig- •'> u). The membrane has increased in thick- 

 ness hut is pretty translucent, and inside it the protoplasm 

 has become differentiated in such manner, that in the 

 middle there are observed two distinct nuclei (Pl. XXV. 

 fig. 3 //). and two peculiar bodies (possibly future embryons) 

 (Pl. XXV. tig. 3 c) in the protoplasmic substance. also 

 two vacuoli that lie towards both extremities but realhj 

 outside the protoplasm (Pl. XXV. fig. •"- <'). It appears, 

 to me. that this parasitical creature must. as the most 

 obvious course, be assigned to the early stages of a 

 Gregarine that has found it advantageous to take up its 

 residence with an Epizoanthus, dwelling in the cold area 

 at a depth of 457 fathoms. The prolongated sacs so 

 peculiar to the Gregarines (Schleuche), or capsules. I did 

 not discover: but if we regard the nature of the spores, 

 the thick translucent membrane that surrounds the proto- 

 plasmic contents (the embryon), and the subsequent dif- 

 ferentiation, we will, in those features, tind so much simil- 

 arity with what is known of the development of a, few 

 forms of Gregarines (the sporozoa), that it may well be. 

 perhaps, that my supposition is correct. 



