327 



A REVISION OF THE MONAXONID SPECIES DE- 

 SCRIBED AS NEW IN LENDENFELD'S "CATA- 

 LOGUE OF THE SPONGES IN THE AUSTRALIAN 

 MUSEUM." Part ii. 



By E. F. Hallmann, B.Sc, Linnean Macleay Fellow of the 

 Society in Zoology. 



(Plates xv.-xxiv.) 



Familia HOMORRHAPHID^. 



Subfamilia Renierin^. 



Reniera collectrix. 

 For various reasons one is obliged to conclude that this 

 species was founded on specimens of Cliondrosia ( ?) collect rlj., 

 the mistake in all probability having been due to the fact that 

 the specimen examined by Lendenfeld for description hap- 

 pened to contain a considerable number of foreign spicules 

 derived from a litnlcra growing in contact with it. This, in 

 the first place, is the conclusion to be drawn from the osten- 

 sible type-specimen, as well as from a fragment labelled 

 litnicra collectrix that comes from the British Museum, — 

 both of which are examples of the species I have named. The 

 fragment referred to is practically free from spicules, but the 

 complete specimen (which is encrusted in many places by other 

 sponges, including Rcnicra) shows here and there — as already 

 mentioned by Whitelegge(56), who himself regarded them as 

 proper to the sponge — patches of small oxea, which occur more 

 especially in some parts near the surface. Furthermore, this 

 specimen, apart from the fact of its being without proper 

 spicules, is consistent with the description of R<nur<( collect r'l.r 

 in every respect excepting only that its oscula are but 2-5mm. 

 wide instead of 5mm. And a point particularly to be noted 

 in connection with the description is the statement therein 



