16 



tyndt og glat, beklædt med Endothel, imellem hvis Celler 

 sees Nematocyster. Parieto-basilarmuskelen ei- baade smal 

 og tvinl og strækker sit; kun lidet op jpaa Kropsvæggen ; 

 i det Hele tanet er Muskulaturen kun lidet udviklet. 



Tentaklernes Ectoderm afViger ikke væsentligt fra 

 Kroppens og have lignende Nematocystegrupper. Imellem 

 de lange, cylinderformede Ectodermceller sees hist og lier 

 encellede Slimkjertler, men langl sparsommere end paa 

 Kroppen. 



Svælgrøret er temmelig kort og forsynet med 2 Svælg 

 gruber. 



Farven. Hele Dyret er næsten vandklart. Kroppen 

 og Tentaklerne spille yderst svant i det Grønlige og 

 Mundskiven lidt i detBlegrøde; yderst paa Enden af Ten- 

 taklerne er en hvid Ring. Svælgrøret on Gastralfilanien- 

 terne blegrøde. 



muscular laver is thin and smooth, and is clad with endo- 

 thelium between whose cells nematocysts are observed. 

 The parieto-basilar muscle is both narrow and thin. and 

 extends itself only a little way up the wall of the body. 

 Altogether the musculosity is hut slightly developed. 



The ectoderm of the tentacles does not materially 

 diffei from that of the body, and has similar groups of 

 nematocysts. Between the long cylindric ectoderm-cells, 

 unicéllular mucous glands are here and there visible, hut 

 far more scantily than on the body. 



The cesophagus is råtner short, and furnished with 2 

 gullet-grooves. 



The colour. The entire animal is almost pellueid. 

 The body and tentacles are very faintly, greenish tinged; 

 and the oral disc is tinged slightly, pale red. At the out- 

 ermost extremity of the tentacles there is a white annulus. 

 The res.ophagus and gastral filaments are pale red. 



Findested. 

 Station 237. Et Exemplar. 



Slægtskarakter. 



Fodskiveu bred, forsynet med yderst fine Længdestri- 

 ber. Kroppen glat med tine Længdefurer. Tentaklerne 

 ikke retraktile. i flere Rækker. Iste indre Række s . 16 

 Par fuldstændige Septa. Mesodermale Cirkulærmuskler. 



Habitat. 

 Station No. 237. One specimen. 



Generic characteristics. 



The pedal disc broad, furnished with extremely tine 



longitudinal stripes. The body smooth. with tine longitudinal 



furrows. The tentacles non-retiactile. in few series. The 



first inner series contains s tentacles. 16 pairs of perfect 

 septa. Mesodermal circular muscles. 



Artskarakter. 



Fodskiveu bred, 2»)""" i G-jennenisnit, membranøs med 

 undulerende Rand. Kroppen omtrent ."v"" hoi. smalere end 

 Fodskiveu on paa dens udvendige Væg lii fine Længde- 

 furer foi' Insertionerne af Septa. samt en Mængde Nema- 

 tocyster, grupperede i smaa, hvide Papiller. Mundskiven 

 næsten plan. bredere end Kroppen, men smalere end Fod- 

 skiveu. Mumien aflang, ottelappet. Tentaklerne korte, 

 koniske, ikke retraktile. i 3 Rækker. I den inderste Række 

 8, der ere de største; i den mellemste Række ogsaa 8, som 

 ere lidt mindre, og i den ydre Række li'', der ere menet 

 mindre. Paa Tentaklernes ydre Flade en Mængde smaa. 

 hvide. uregelmæssigt stillede Papiller (Nematocystegrupper). 

 Hele Dyret temmelig gjennemsigtigt, spillende yderst svant 

 i det Grønlige. Mundskiven spillende lidt i det Blegrøde 

 og paa Enden af Tentaklerne en lille, hvidantin Ring. 

 Svælgrøret og Gastralfilamenterne blegrøde. Septa vand- 

 klare. 



Speeiflc characteristics. 



The pedal disc broad; measures 20""" from side to side; 

 membranous, with undiflating margin. The body about 

 ri""" in height, narrower than the pedal disc. and has. on its 

 exterior wall, 1 6 fine longitudinal grooves for the insertions 

 of septa. also a multitude of nematocysts grouped in small 

 white papillæ. The oral disc almost plane, broader than 

 the body hut narrower than the pedal disc. The mouth 

 oblong, octo-lobate. The tentacles short, conical, non-re- 

 tractile, placed in .') series. In the innermost series 8 

 tentacles, which are the largest in si/e: in the intermediate 

 series also 8, which are somewhat less in size, and in the 

 outer series 16, which are much smaller. On the exterior 

 surface of the tentacles there are a multitude of small, white. 

 irregularly placed papillæ (groups of nematocysts). The 

 entire animal is rather transparent, very faintly greenish 

 tinged. The oral disc tinged slightly, pale-red, and upoh 

 the extremity of the tentacles there is a small whitish an- 

 nulus. The æsophagus and gastral tilament pale red. Septa 

 pellueid. 



