898 THE IIOMOCOELA DESCRIBED FROM AUSTRALIA, 



Auloplegma loculosum. E. Hackel. 



Prodromus, I.e., p. 250. 

 Thecometra loculosa. E. Haeckel. 



Prodromus, l.c, p. 254. 

 Ascetta primordialis, E. Haeckel. 



Die Kalkschwamme Eine Monopraphie. Band II., p 16. 

 Triradiate spicules regular, with equal angles and rays ; rays 

 straight, slender conic or cylindrical proximally, distally semi- 

 spindle-shaped, tapering from the middle ; point of rays simple, 

 sharp, without bulbous terminal extension (not inflated.) 



Size of spicules very variable, generally the rays O'l — 0*15 

 x 0-008— 0-012. 



Special description and figures in Haeckel (Monografie der Kalk- 

 schwamme l.c.) 



Colour : Generally white, sometimes yellowish or reddish, rarely 

 pure sulphur yellow, gold yellow, menning red, crimson or brown. 



Locality : Mediterranean, Nice, Naples, Messina, Gibraltar, 

 Lesina, Haeckel ; Adria, Zara, Sebenna, Lesina, Lagosta, Oscar 

 Schmidt ; Lesina, Heller. 



Atlantic Ocean, Rio Janeiro, Wendt ; Algoa Bay, Poehl ; Cape 

 Town, Wilhelm Bleek. 



Red Sea, Frauenfeld, Mikluho. 



Indian Ocean, Singapore, Putnam. 



Coast of Australia, St. Vincent's Gulf, Wendt ; Sydney, Sonder. 

 Bass Straits, Wendt. 



Pacific Ocean, Philippines, Semper. 



Viti Islands, Graeffe. 



Valparaiso, Trautmann. 



2. SPECIES. ASCETTA POTERIUM. E. Haeckel. 



Ascetta priruordialis var poterium. E. Haeckel. 



Die Kalkschwamme eine Monografie. Band II., Seite 17. 

 Clathrina poterium. Ridley. 



Proceedings of the Zoological Society of London, 1881, 



p. 133. 



