43 



of all the tentacles. The basal disc may be broad and 

 flat, adherent, or it may be bulbous. clasping mud. or it 

 mav ensheathe the branches of Gorgoniæ &c. Tentacles 

 long and large, contractile. Legis with large folds and 

 gonidial grooves." 



Det tør hænde, at Verrill ikke har havt levende 

 Exemplarer, der har været i Hild Vigør, til sine Under- 

 søgelser; thi den Forskjel, han beskriver imellem den 

 øverste og nederste Del af Kroppen, fremkom forst paa de 

 Exemplarer, jeg har undersøgt, naar Dyrene vare begyndte 

 at trække sig sammen, og især efter at de vare opbevarede 

 i Alcohol. Paa hele Kroppens Overflade var der stærk 

 Slimafsondring, og Huden var ikke tykkere og ikke fastere 

 paa den nederste, end paa den øverste Del. Paa et 

 Exemplar vare Vorterne overalt lige store. Nu kunne 

 disse Forhold variere meget efter de Lokaliteter, paa 

 hvilke de leve. 



Til de Karaktermærker, Verrill har angivet for Slægten, 

 skal jeg ifolge mine Observationer tilfoie Følgende: Imellem 

 de store Knuder sees en stor Mængde Sugevorter, samt 

 hist og her Cinelides, hvorigjennem lange Acontier. 6 Par 

 principale, fuldstændige, golde Septa. Oirkulære Muskler 

 endodermale. 



Idet jeg henviser til VerrilTs Beskrivelse over Actinauge 

 nodosa og hans to Varieteter, skal jeg supplere den noget. 



Podskiven er bred. udbredt næsten skiveformigt over 

 Stenen, hvortil den er fæstet, med en temmelig tynd og 

 meget unduleret Band. Kolumnen hoi, soileformig, cylin- 

 drisk; dens Overflade besat med store, fremragende Knuder, 

 som staa i uregelmessige Længderækker, og imellem dem 

 sees en stor Mængde smaa Sugevorter, hvortil er hæftet 

 Ler og andre fremmede Legemer, samt hist og her Cineli- 

 des, hvorigjennem lange Acontier træde ud ; dens øverste 

 Rand er fri. noget afrundet. 



Mundskiven, som ikke er synderlig bredere end 



Kolumnen, er plan. foldet og forsynet med 3 Rækker 

 Tentakler. 24 i liver. Den inderste Række har de tyk- 

 keste og længste, den mellemste Rækkes Tentakler ere 

 rioget tyndere, de i den yderste Række sidde strax neden- 

 for Kroppens fri Rand -og have samme Størrelse som 

 Mellemrækkens. Munden er aflang, foldet, med 2 tem- 

 melig brede Gonidiegruber. 



Farven. Kroppen er brungul, spillende i det Violette, 

 men den havde. idet Dyret kom i Skraben sammen med 

 Bundens Ler. et brunt, membranost Overtræk, hvorigjennem 

 de store, hvide Vorter stak frem. Om dette Overtræk er 

 en virkelig Overhud, eller det blot var en afsondret, seig 

 Slim, blandet med Ler. var vanskeligt at afgjøre; imidlertid 

 antager jeg det sidste for at være det rette Forhold; thi 

 efterat Dyrene havde levet nogle Dage i rent Søvand, skilte 

 de sig ganske med det nævnte Overtræk. og da havde 

 Kroppen den paa Tegningen angivne Farve. Tentaklerne 

 ere i den inderste Række brunrøde, i den mellemste Række 

 ere de blegere og i den yderste Række bleg hvidrøde. 



of all the tentacles. The basal disc may be broad and 

 flat. adherent; or it may be bulbous; clasping mud, or it 

 may ensheathe the branches of Gorgoniæ &c. Tentacles 

 long and large, contractile. Legis with large folds and 

 gonidial grooves." 



It may perhaps have been, that Verrill has not had 

 living specimens that have been in full activity for his 

 investigations, as the difference which he describes as ex- 

 istent between the uppermost and lowermost parts of the 

 body. appeared in the specimens which I have investigated, 

 first after the animal had begun to draw itself together. 

 and espeeially after preservation in alcohol. On the entire 

 external surfare of the body there was a strong mucous 

 deposit, and the integument was neither thicker, nor finner, 

 on the lowermost part than on the uppermost part. In 

 one specimen the warts were everywhere uniform in size. 

 But those relations may vary much according to the loeal- 

 ities in which the animals exist. 



To the characteri sties Verrill has supplied for the 

 genus, I shall, as the result of my investigations, add the 

 following: Between the large nodules a great multitude of 

 suckers are seen, also cinelides here and there, through 

 which long acontia project; 6 pairs of principal. perfect, 

 sterile septa, and circular muscles endodermal. 



Referring to Verrill's description of Actinauge nodosa 

 and his two varieties. I shall add a little to it. 



The basal disc is broad, distributed almost discoid- 

 ally over the stone to which it is adherent. and it has a 

 rather thin and somewhat indented margin. The column 

 high, pillar-like, cylindrical; its external surface covered 

 with large protruding nodules. placed in irregular longi- 

 tudinal series, and between these a great multitude of 

 small suckers are seen, to which elay and other foreign 

 bodies are adherent. Cinelides are also here and there 

 observed, through which long acontia protrude; the upper- 

 most margin is free, and somewhat rounded. 



The oral disc, which is not much broader than the 

 column, is plane, folded. and furnished with 3 series of 

 tentacles, 24 in each series. The innermost series contains 

 the thickest and longest tentacles. The tentacles of the 

 intermediate series are somewhat thinner; those in the 

 outermost series are seated immediately inside of the free 

 margin of the body, and are of the same size as those of 

 the intermediate series. The mouth is oblong. folded, and 

 has 2 rather broad gonidial grooves. 



TJie colour. The body is brown-yellow, shading to 

 violet, but it had, as the animal appeared in the dredge to- 

 gether with the clay of the bottom, a brown, membranous 

 coating through which the large white nodules protruded. 

 Whether this coating is a real integument , or only a 

 deposited viscid mucous mixed with clay. was difficult to 

 decide, but I believe, however. that the last named is the 

 true relation, because after the animal had lived for a 

 few days in clean sea-water it completely threw off the 

 coating spoken of, and then the body had the colour 

 indicated in the illustration. The tentacles of the inner- 

 most series are brown-red ; in the intermediate series thev 



