ST 3 



Reniera complicata, n. sp. 



En lysgraa Svamp, tilsyneladende grenet, men snarere 

 bladet, en sammenhængende flad Masse, paa hvilken der 

 tindes fremstaaende Kanter eller Blade paa begge Flader, 

 Naalene er samtlige Stavnaale, men af temmelig forskjellig 

 Form; dels ac 2 tynde rette, bøiede eller mangfoldigt krum- 

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

 tr 2 , digeledes tykke og svagt bøiede og endelig tr°ac og 

 trac, tynde, rette og almindeligt forsynede med en eller 

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

 8 og Tab. VI, Fig. 8. 



Findested. 



Station 84. 



Reniera inflata, n. 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 opbyggecle af tr 2 Naale, der 

 krydse hinanclen under omtrent rette Vinkler. Tab. I, Fig. 4. 



Findested. 



Station ukjendt. 



De nu følgende Svampe, som jeg henregner til Sub- 

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

 saadanne. Jeg begynder med før beskrevne Former. 



Radiella sol, 0. Schmidt. 



Trichostemma hemisphåricum, Gr. 0. Sårs. 



Halicnemia hemisphårica, Marenz. 



Oscar Schmidt har allerede gjort opmærksom paa, at 

 hans Radiella sol er identisk med Sars's Trichostemma 

 hemisphericum. Efter Schmidts Beskrivelse og Figur i 

 hans „ Atlant. Spongien" skålde man neppe tro dette; men 

 Bergens Museum har faaet et Exemplar af Radiella sol 

 fra Smithsonian Institution og ved at undersøge dette har 

 jeg kunnet overbevise mig om, at begge Former virkelig 

 er identiske. Fra Expeditionen foreligger der et Exemplar, 

 der i Størrelse fuldkomment svarer til det amerikanske, 

 medens Mesteparten er meget større. At iclentificere den 



Reniera complicata, n. sp. 



A light-grey coloured sponge, apparently branchy, 

 but really rather leafy; a continuous flat mass, upon 

 both of whose surfaces, protuberant edges, or leaves are fo-und. 

 All the spicules are rocl-spicules, but of rather diver- 

 gent form; partly ac 2 spicules, which are thin, straight, 

 curved, or corrugated; partly trac which are pretty thick 

 and gently curved ; partly tr 2 also thick, and gently curved ; 

 and finally, tr°ac and trac spicules, thin, straight, and 

 usually, furnished with one or two spherical or semi- 

 spherical protuberances (PI. I, fig. 8, PL VI, fig. 8). 



Habitat. 



Station No. 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 papillæ closed at the extremity. 

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

 tr 2 spicules, which intersect each other at, nearly, right 

 angles (PL 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. 0. Sars. 

 Halicnemia hemispherica, Marenz. 



Oscar Schmidt has, already, called attention to the 

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

 hemisphericum. 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 



