240 Dr. W. Weltner: Bericht über die Leistungen 



Pilotroclia crassispicula n. sp. Sollas (8), Bahia 7— 20 Fad. 



— gigas n. sp. Sollas (8j, St. Pauls Rocks. 



— haeckeli n. sp. Sollas (8), Zamboanga 10 Fad. 



— lougancora u. sp. Sollas (8), Torres-Str. 3—11 Fad. (Später als var. long, 

 zu Pil. purpurea Ridley gestellt.) 



— pachyderma n. sp. Sollas (8), Tahiti 30 -70 Fad. (Später in pachydermata 

 geändert.) 



— tenuispicula n. sp. Sollas (8), Bermuda Ins. 



Psammastra n. g. Sollas (8), Spouge, with a thick fibrous cortex incorporating 

 grains of sand ; oscules two or more ; surface raised into conuli ; spicules — 

 a stellate with short rays and large centrum, and another form with 

 smaller centrum and larger rays, also, and most numerous spined bacilli; 

 forks of very peculiar character, rays very short, appearing merely as 

 spines of an acerate spicule with a rounded distal end. 



— murrayi n. sp. Sollas (8) 39» 10' SBr., 146° 37' ÖL. 38 Fad. 

 Stelletta aeruginosa n. sp. Carter (2), Austral. 6 Fad. 



— bacillifera n. sp. Carter (8), King Isl. (Mergui Archip.). 



— fortis n. sp. Vosmaer (2), Nördl. Eismeer 179 Fad. 



— geodides n. sp. Carter (2), Austral. 13 Fad. 



— mamilliformis n. sp. Carter (2), Austral. 



— ochracea u. sp. Carter (2), Austral. Western Port. 



— phrissens n. sp. Sollas (8) 50» 8' SBr., 74" 11' WL. 175 Fad. 

 Stellettinopsis purpurea n. sp. Carter (2), Austral. Western Port. 



— lutea n. sp. Carter (2), Austral. Western Port. 



Stryphnus n. g. Sollas (8), Stellettidae distinguished by the absence of a radiate 

 arrangement of the spicules of the choanosome, only those which imme- 

 diately approach the surface of the spouge being arranged al right angles 

 to it; by the comparatively small size and rarity of the fork spicules as 

 compared with the acerates, and chiefly by the presence of a curious 

 iiTegular fleshspicule — the aniphiastrella. The cortex is a vesicular 

 coUenchyme containing pigment cells. 



— niger n. sp. Sollas (8), Port Jackson 30—35 Fad. 



— unguiculus n. sp. Sollas (8;, Port Elisabeth, S. Afrika. 



Stylopus coriaceus n. g. n. sp. Friste dt (1), Bohusläu, c. 60 m Gattungsdiagn. 

 Spongia incrustans. Spicula ancorata, C-, S-curvato-acria et alia minora 

 nulla; spicula ordinum n. et III. sola adsunt. Spicula intercoris sceleti 

 inter se fere parallela, angulo fore recto ad spicula cutis membraueceae 

 disposita. 



— coriaceus wahrscheinlich syn. Hymeniacidon dujardiniBwbk. Fristedt (2). 

 Synops neptuni n. sp. Sollas (8), Brasilien 32 Fad. 



— nitida n. sp. Sollas (8;, Port Jackson, Sydney. 



— vosmaeri n. sp. Sollas (8), Barre Grande 350 Fad. 

 Tethya cranium n. var. australiensis Carter (2), Austral. 20 Fad. 



— cranium n. var. robusta Carter (8), King Isl. (Mergui Archip.) 



— merguiensis n. sp. Carter (8), King Isl. (Mergui Archip.) 



— sibirica n. sp. Fristedt (3), Chatanga Bai (Sibirisches Eismeer), 15 Fad. 

 Actinia Bai 5 — 10 Fad. Pitlekai (Nordost Sibirien). (Ist eine Tetilla 

 Schm.) 



