BY R. VON LENDENFELD, PH.D. 153 



The most important feature of the Sponge is its peculiar sub- 

 dermal cavity. Carter does not mention this, but as he does not 

 say anything about the canal system at all, it is probable that he 

 never examined any section-series. 



Darwinella australiensis (1) is i-epresented in my collection, but 

 the canal system is not described by Carter, so that it is difficult 

 to identify the species. 



As Aplysina Isevis (2) Carter, seven distinct species in my collec- 

 tion could be considered. These are very different from one another, 

 but all coincide with Carter's diagnosis of the above species. They 

 are forms which led to the Dysididee of Marshall (3), of which 

 Carter's Pseudoceratina durissima (4) maybe a true representative. 



The diagnosis given by Carter of Aplysina purpurea (5), led 

 me to believe that it might be identical with a Sponge examined 

 by me, and named Aplysilla violacea (6), but now it seems that 

 this is not the case, as Carter considers the Australian specimen of 

 that Sponge to be identical with his Pseudoceratina durissima (7,) 



Carter's new genus Halapsamina(8), is identical with Marshall's 

 genus Psammapemma (9), established five years ago, and the 

 latter name must be accepted as it has priority. 



(1) H. J. Carter. Description of Sponges from the neighboiu'hood of 

 Port Phillip Heads, South Austraha. Annals and Magazine of Natural 

 History, Ser. 5, Vol. XV., p. 203. 



(2) H. J. Carter. L.c, p. 204. 



(3) William Marshall. Ueber Dysididen und Phoriospongien. Zeit- 

 schrift fiir wissenschafsHche Zoologie. Band 35, Seite 92. 



(4) H. J. Garter. L.c, p. 204, 



(5) H. J. Garter. Contributions to our knowledge of the Spongida. 

 Order II., Ceratina. Annals and Magazine of Natural History, Series 5, 

 Vol. VIII , pp. 103-105. 



(6) R. von Lendenfeld. L.c. Seite 237 ff. 



(7) H. J. Carter. Description of Sponges from the neighbourhood of 

 Port Phillip Heads, South Australia. Annals and Magazine of Natural 

 History, Series 5, Vol. XV., p. 205. 



(8) H. J. Garter. L.c, p. 211. 



(9) William Marshall. L.c, Seite 113. 



