228 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



He regretted that he was unable to give the Society a formal address, 

 and concluded with some interesting remarks upon the geographical 

 distribution of the land mollusca in different parts of the world, 

 a subject which he thought might well occupy the attention of 

 malacologists. He specially pointed out that the systems of division 

 of the earth's surface into zoological areas at present in vogue, notably 

 Sclater's, could not be applied to the land mollusca, citing amongst 

 other cases that of Australia, where the northern land mollusca were 

 absolutely distinct from those of the south and indicated a different 

 origin. 



On the motion of Mr. S. I. Da Costa, seconded by Mr. H. B. 

 Preston, a vote of thanks was passed to the Retiring Officers, the 

 Retiring Members of Council, the Auditors, and the Scrutineers, 

 Dr. Blanford, the Retiring President, being specially thanked for his 

 valuable services. 



ORDINARY MEETING. 



Friday, 8th February, 1901. 



E. A. Smith, F.Z.S., President, in the Chair. 



Richard H. Bentley was elected to membership of the Society. 



Exhibitions were placed on the table by the following : — 



Mr. J. E. S. Moore : a large series of mollusca collected by him 

 during his second visit to Lakes Tanganyika and Nyassa and the Great 

 African Lakes forming the sources of the Nile. He drew special 

 attention to the fact that no traces could be found in Nyassa, Kivu, 

 Albert Edward, Albert, and Victoria Nyanzas of the strange fauna 

 which is so characteristic of Tanganyika. Amongst the exhibits was 

 a supposed new species of Bythoceras from Tanganyika, and a new 

 Gastropod from Albert Edward Nyanza. This shell resembles 

 a Planorbis in form, but appears to be in reality a Melania. 



Mr. E. A. Smith : a small box of the so-called Breeding Pearls, 

 presented to him by Mr. H. M. Bernard. 



Mr. E. R. Sykes : some rare Volutes ( V. Sophia;), and a large series 

 of Achat inella from the Philippines illustrating their extraordinary 

 variation. 



Mr. J. E. Cooper : a series of distorted British Lamellibranchs, also 

 the rare Myrina Simpsoni, Marshall, from Fisher Bank, east of Orkneys, 

 and Mangilia ruyosa, Phil., from Achil Island, co. Mayo. 



Mr. S. I. Da Costa : a collection of Aperostoma from South and 

 Central America. 



The Rev. R. Ashington Bullen : a large series of Cyprcecc, showing 

 colour variations ; also a series of Helices. 



