Proceedings of the Royal Society of Victoria. Ill 



Professor Tate has forwarded the following list, which 

 contains the names of a portion of the Molluscan collection 

 sent to him : — 



Natica latnarcldana (aonj^la, var.) 



Fissurella scutella. 



Tugcdia ixirinoplioroidea. 



Fusus pyridatus (young example). 



Crep idula imme rsa. 



Cancellaria spenqUriana. 



Marginella turbinata (dwarfed examples). 



Cyprcea pipeiata (immature exanijjle). 



Natica peruinhilicata (young example). 



Cyprcea sj). (young example). 



Diala magna, n. sp. 



A cmcea septiformis. 



Acmcea scabrilirata. 



Hipponyx antiquatus. 



Professor Spencer has investigated the structure of a 

 remarkable Hydroid form, representative of a new family, 

 to which the name of Hydroceratinidse has been given. 

 Only one genus and species of this family is known, viz., 

 Clathrozoon wilsoid. This form is described and figured 

 in the " Transactions " of the Society for the current year. 

 Professor Spencer has also investigated the structure of a 

 new species of Plumularia (P. procumbens), which is of 

 interest on account of the structure of the polysiphonic stem, 

 which differs from any hitherto described. It is also figured 

 in the "Transactions." 



Dr. Dendy has read before the Society the first part of 

 his " Monograph on the Victorian Sponges," dealing with 

 the organisation and classification of the Calcarea Homocoela, 

 and describing the Victorian species. The Council of the 

 Society has decided to reserve one entire volume of the 

 "Transactions" for Dr. Dendy's Monograph, and the first 

 part is now ready for the printer. 



Dr. Dendy has also published in the Quarterly Journal 

 of Microscopiccd Science, a full memoir on that very remark- 

 able Victorian Calcisponge, Grantia labyrinthica, and the 

 «o-called family, Teichonidse. 



Amongst the specimens of sponges obtained this year by 

 Mr. Wilson, the most remarkable is a very beautiful and 

 entirely new genus and species of Sycon, illustrating a novel 



