11 



Findested. 

 Station 40. Et Exemplar. 



Slægtsiarakter 



Fodskiven rund. skiveformigt udvidet. Kroppen urne- 

 dannet med brede Tverfolder os: en udpræget Indsnøring 

 strax ovenfor Fodskiven; paa dens ydre Flade en stor 

 Mængde smaa Sugevorter. Tentaklerne i faa Rækker (2), 

 korte og retraktile. De fuldstændige Septa mange. Cir- 

 kulærmusklerne mesodermale. 



Artskarakter. 



Fodskiven rund. tynd. skiveformet; 20""" bred med 

 brede Længdefolder og en lidt lappet Rand. Kroppen 

 urnedannet. 22""" hoi. 15 mra bred op imod Mundskiven, 8 — 

 10'""' bred strax ovenfor Fodskiven. med brede Tverfolder; 

 en dyb Indsnøring lige ved Foden, og Kropsfladen tæt be- 

 sat med Sugevorter. Mundskiven rund. næsten flad. 20""" 

 bred. forsynet med fine Folder, der straale ud fra den af- 

 lange Mund. som har tykke, foldede Læber med 2 Gonidie- 

 gruber. Tentaklerne i Mundskivens Peripheri, 2 Rækker. 

 korte. 36 i hver Række ; de i den inderste Række ere 

 længst. Farven: Fodskiven næsten hvid med et svagt 

 Rosenskjær. Kroppen bleg rosenrød, lidt mørkere i Fu- 

 rerne, sum ere imellem Folderne. Mundskiven smuk kasta- 

 niebrun med en mørkere Ring om Mumien. Tentaklerne 

 i den yderste Ra>kke have Kroppens Farve, i den indre 

 Række have de en intensere brun Farve, end Mundskiven. 



Kyathactis 1 hyalina. n. g. et sp. 

 Tab. I. Fig. 3. Tal.. VII. Fig. ii— it. 



Kyathactis hyalina har en temmelig udpræget Bæger- 

 form. er 12"'"' hoi. 16""" bred forneden, Tab. I. Fig. 3; 

 Tab. VII. Fig. G— 9. 



Fodskiven er lidt afiang. 16""" bred, meget tynd med 

 en noget indbøiet Rand. der har 40 tykke Folder med 

 ligesaamange Furer. Tab. VII. Fig. 8. Selve Skiven er 

 lidt konkav og har til hver Side af den afiange Flade et 

 halvmaaneformigt Indsnit, som hvert optager 2 af Randens 

 Folder. Tab. VII. Fig. 8 «. og hvorved Randen ligesom 

 deles saaledes, at der er IS Folder paa hver af dens Sider 



Habitat. 

 Station No. 40. One specimen. 



Generic characteristics. 



The pedal disc round. discoidally expanded. The body 

 shaped like an ura, with broad transverse folds, and a 

 prominent constriction immediately above the pedal disc; 

 on its exterior surface a great multitude of minute suckers. 

 The tentacles in few series (2). short and retractile. Nu- 

 merous perfect septa. Mesodermal circular-muscles. 



Speciflc characteristics. 



The pedal disc round. thin. discoidal, 2U""" in breadth; 

 with broad longitudinal folds, and a somewhat lobate margin. 

 The body urn-shaped, 22""" in height. 15""" in breadth up 

 towards the oral disc, and 8 — 10'"*" in breadth immediately 

 above the pedal disc; has [broad transversal folds, and a 

 deep constriction just at the base. The surface of the 

 body closely beset with suckers. The oral disc round. 

 almost flat, 20'"™ in breadth, furnished with fine folds that 

 radiate from the oblong mouth. which has thick folded labiæ 

 with 2 gonidial grooves. The tentacles in the periphery 

 of the oral disc. in 2 series, short. 36 in each series. Those 

 in the inner series are longest. Colour. Tbe pedal disc 

 almost white, with a faint rosy tinge. The body pale rose- 

 red, somewhat darker in colour in the grooves between 

 the folds. The oral disc a beautiful chestnut-brown colour. 

 with a darker aimulus round the mouth. The tentacles in 

 the outer series have the colour of the body. In the 

 inner series they have an intenser brown colour than the 

 oral dise. 



Kyathactis ' hyalina. n. g. et sp. 



PL I, fig. 3, Pl. VII, figs. 6 9. 



Kyathactis hyalina has a rather prominent crateri- 

 form; is 12""" high. and 1(3""" broad below (Pl. I. fig. 3. 

 Pl. VII. figs. 6—9). 



The pedal disc is somewhat oblong. 16'""' broad. very 

 thin, and has a somewhat involved margin, with 40 

 thick folds and the same number of furrows (Pl. VII. 

 fig. 8). The disc itself is slightly concave, and has. upon 

 each side of its oblong surface. a semilunar incision; each 

 of these ineisions includes two of the marginal folds (Pl. 

 VII. fig. 8 a) and they cause the margin to be divided, 



1 y.ua3o; = et lidet Bæger. 



A small gol let. 



