48 



vorteformige Fremstaaenheder , der staa uregelmæssigt 

 spredte over hele Kropsfladen, især dens nederste Del, 

 men synes stundom at have Tendents til at danne Længde- 

 rækker. Disse Fremstaaenheder ere forsynede med en 

 vderst fin Aahning (Loophole) hvorigjennem lange Acontier 

 udstødes. Kroppens øverste Rand er noget afrundet og 

 fremstaaende. en tydelig Parapet, indenfor hvilken er en 

 Fordybning (Fossaj imellem den fri. afrundede Rand og 

 den yderste Tentakelrække. Kroppens Hud er tast, mem- 

 branøs, temmelig tynd og halv gjennemskinnende. saa at 

 naar Dyret er udspændt og i fuld Vigør, blive Skillevæg- 

 eene synbare. 



Mundskiven er vderst ringe hvælvet, fint foldet; 

 Folderne gaa fra Munden ud mod Peripherien. Munden 

 er aflang. stærkt foldet med tykke La/her og to temmelig 

 firede Gonidiegruber, Tab. I. Fig. 5. 



Tentaklerne retraktile. staa 'i 4 Rækker, ere tem- 

 melig tykke, konisk tilspidsede med noget afstumpede 

 Ender, omtrent 2 Trediedele saa lange som Skivens 

 Bredde, noget stive og paa hele deres Overflade bver- 

 ordentligt rigt besatte med Nema.tocyster, saa de hænge 

 fast ved Fingrene, naar de berøres, uden dog at fremkalde 

 Smerte. 1 den inderste. Iste Række, ei' der 12 Tentakler, 

 disse ere de tykkeste og kanske lidt længere end [de øvrige; 

 ogsaa i 2deu Række er der 12. hvilke sidde afvexlende 

 med dem i Iste Række. I den 3d;e Række er der IS. 

 men i 4de Række er der dobbelt saa mange som i 3die 

 Række. nemlig oO. idet 2 Tentakler af 4de Række sidde 

 mellem hver 2 Tentakler i 3dje Række. Saavel Tentak- 

 lerne som Mundskiven kan fuldkommen (hekkes af Krop- 

 pens Rand, naar Dyret kontraherer sig. 



Farven. Kroppen med Fodskiven er gulrød med mørke- 

 røde dels Strilier. dels Flækker; dens fri. afrundede Rand 

 er lidt mørkere rod. Mundskiven er rosenfarvet med fine. 

 rode Folder, der udgaa, fra den rode Ring omkring Munden 

 og strække sig henimod Tentaklerne. hvor de blive bredere, 

 stærkere røde og dele sig saaledes, at de ringformigt om- 

 fatte Grunden af Tentaklerne. fra den inderste til den 

 yderste Række. Mundens Læber ere stærkere rode end 

 Skiven, næsten saa røde som Ringen omkring Tentakel- 

 grunden. Gonidiegruberne ere bleg gulrøde, eller de kunne 

 være saa stærkt røde som Mundringen. Svælget, der let 

 udkrænges, er hvidgult. Tentaklerne ere gjennemsigtige, 

 bleg gulrøde med 1 til 2 brede, rode Ringe, foruden den. 

 som tindes ved Grunden. 



Kroppens udvendige Flade er som sædvanligt beklædt 

 med et Epithel; dette er temmelig tykt og dannet af lange, 

 cilierende Cylinderceller, hvorimellem sees encellede, kolbe- 

 formede Slimkjertler samt Nematocyster; Indenfor dette 

 Ectoderm er et bredt, svagt fibrillært Bindevævslag,*over- 



extremely minute mammiform protuberances be seen with 

 the assistance of a magnifier. These are placed, irregul- 

 arly. over the entire surface of the body. especially on its 

 lowest part, but occasionally they appear to have a ten- 

 dency to form longitudinal series. These protuberances 

 are furnished with an extremely minute loophole through 

 which long acontia are projected. The uppermost margin 

 of the body is somewhat rounded aud projectant, and forms 

 a distinct parapet, inside of which there is a fosse between 

 the free rounded margin and the outermost tentacular 

 series. The integument of the body is finn. membranous. 

 rather thin and semi-transparent, so that when the animal 

 is extended and in full activity the divisional-walls become 

 apparent. 



The oral disc is extremely slightlv arcuate, and finely 

 folded. The folds issne from the mouth towards the peri- 

 phery. The mouth is oblong, strongly folded. has thick 

 labiæ and two rather broad gonidial grooves iPl. I, fig. 5). 

 The tentacles are retractile and are placed in 4 series. 

 They are rather thick, conically acuminated with some- 

 what blunted extremities, and they measure in length about 

 two-thirds of the breadth of the disc. They are somewhat 

 stift', and over their entire surfare are riehly beset with 

 nematocysts, so that they adhere firmly to the fingers 

 when they are touched, without, however, causing pain. 

 In the innermost series, the first one, there are 12 ten- 

 tacles; these are the thickest and they are also, perhaps, 

 a little longer than the others. In the second series there 

 are also 12 tentacles, seated alternating with those of 

 the first series. In the third series there are 18 tentacles, 

 but in the fourth series there are twice as many as in the 

 third series, viz. 36, as two tentacles of the fourth series 

 are seated between every two tentacles of the third series. 

 Both the tentacles and the oral disc can he completelj 

 covered by the margin of the body when the animal con- 

 tracts itself. 



Tite colour. The body and pedal disc are yellowish- 

 red with dark-red. partly stripes and partly patches. The 

 free, rounded body-margin is a slightlv darker-red. The 

 oral disc is rose-coloured, with tine red folds that issue 

 from the red annulus round the mouth. and extend them- 

 selves towards the tentacles. where they become broader 

 and a brighter red, and also divide themselves in such 

 niannei' that they annularly include the base of the ten- 

 tacles from the innnermost to the outermost series. The 

 oral labiæ are a brighter red than the disc. and are almost 

 as red as the annulus round the base of the tentacles. 

 The gonidial grooves are pale yellowish-red, or they may 

 be as bright a red as the oral annulus. The resophagus 

 is a little everted. and is whitv-vellow. The tentacles are 

 transparent!, pale yellowish-red, and have 1 to 2 broad 

 red annuli besides the one found at the base. 



The external surface of the body is. as usual. clad 

 with an epithelium; this is rather thick, and is formed of 

 long ciliating cylinder-cells, between which unicellular 

 claviform mucous glands and also Nematocysts are seen. 

 Inside of this ectoderm there is a broad faintlv fibrillar 



