Reniera complicata. a. sp. 



En lysgraa Svamp, tilsyneladende grenet, men snarere 

 bladet, en sammenhængende Had Masse, paa hvilken der 

 lindes fremstaaende Kanter eller Hladc paa begge Flader. 

 Naalene er samtlige Stavnaale, men af temmelig forskjellig 

 Fonn: dels ac* tynde rette, bøiede eller mangfoldigt krum- 

 mede, dels trac, temmelig tykke og svagl bøiede, dels 

 !r-, 'ligeledes tykke og svagl bøiede og endelig tr a ac og 

 trac, tynde. rette og almindeligt forsynede med en idler 

 to kugle- eller halvkugleformige Opdrivninger. Tab. I, Fig. 

 8 og Tab. VI. Fig. 8. 



Findested. 



Station 84. 



Reniera inflata. 



sp. 



En liden hvid Svamp, der danner en Blære paa en 

 hul Stilk ; Blæren ved sin øvre Ende besat med flere koniske, 

 hule Papiller, lukkede for Enden. Blærens saavelsom Stil- 

 kens og Papillernes Vægge opbyggede af ir' z Naale, der 

 krydse hinanden under omtrent rette Vinkler. 



Tal). I. Fig. 4. 



Findested. 



Station ukiendt. 



De nu følgende Svampe, som jeg henregner til 8ub- 

 eritidæ, har samtlige Spikier af Formelen tr°ac og kun 

 saadanne. Jeg begynder med før beskrevne Former. 



Radiella sol. < >. Schmidt. 



Trichostemma hemispbåricum, <J. 0. Sårs. 



Balicnemia bemispharica, Marenz. 



Oscar Schmidt har allerede gjort opmærksom paa, at 

 hans Radiella sol er identisk med Sars's Trichostemma 

 Jwiiiisjrfierintm. Et'ter Schmidts Beskrivelse og Figur i 

 hans ..Atlant. Spongien" skulde man neppe tro dette; men 

 Ilernens Museum har faaet et Exemplar af Radiella sol 

 fra Smithsonian Institution og veil at undersøge dette har 

 jeg kunnet overbevise mig om, at begge Former virkelig 

 er identiske. Fra Expeditionen foreligger der et Exemplar, 

 der i Størrelse fuldkommenl svarer til det amerikanske, 

 medens Mesteparten er megel større. At identiflcere den 



Reniera complicata, n. sp. 



A light-grey coloured sponge, apparently branchy, 

 lull really rather leafy; a continuous flat mass, upon 

 hoth of whose surfaces, protuberant edges, or leaves are found. 

 All the spicules are rod-spicules, hut of rather diver- 

 gent form; partly ac a spicules, which are thin, straight, 

 curved, or corrugated; partly trac which are pretty thick 

 and gently curved; partly tr- also thick, and gently curved ; 

 and finally. tr°OC aud trac spicules, thin, straight, and 

 usually, furnished with one or two spherical or serai- 

 spherical protuberances (PI. 1. fit;. 8, Pl. VI, lig. 8). 



Habitat. 



Station Xo. 84. 



Reniera inflata, n. sp. 



A small white sponge, forming a vesicle upon a hollow 

 stem. The superior extremity of the vesicle is beset, with 

 several conical hollow papillae closed at the extremity. 

 The walls of the stem, papillae, and vesicle, are composed of 

 fr- spicules, which intersect each other at, nearly, right 

 angles (PI. I, fig. 4). 



Habitat. 



No record. 



The sponges which now follow, I have assigned to 

 the Suberitidæ. Their spicules are all according to the 

 formula tr°ac; and these alone. I commence with forms 

 previously known and described. 



Radiella sol, 0, Schmidt. 



Trichostemma hemisphericum, G-. < >. Sars. 

 Halicnemia hemispherica, Marenz. 



Oscar Schmidt has. already, called attention to the 

 fact, that his Radiella sol is identical with Sar's Trichostemma 

 hciinsjiI/iT/rinu. According to Schmidt's description, and the 

 illustration given in his „Atlant. Spongien - ', this seems 

 scarcely credible; but the Bergen Museum has obtained 

 a specimen of Radiella sol from the Smithsonian Institution, 

 and after investigating it. I have been able to satisfy my- 

 self that both of these forms are, really, identical. 



During the Norwegian North-Atlantic Expedition, one 

 specimen was obtained, which in size, quite corresponds 



