168 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



MOLLUSCA. 



The collection of British land and fresh water Molluscan 

 shells formed by F. H. Sikes, Esq., and presented by him to the 

 Museum, constitutes the most important addition to this part 

 of the collection during the year. It consists of some three 

 thousand one hundred shells, and is rich in named varieties 

 obtained from celebrated collectors. The whole of the collection 

 is carefully labelled and should be of considerable value to 

 workers on variation in the Mollusca. 



A collection of Nudibranchia from the Red Sea, purchased 

 from Dr. E. Bannwarth, calls for special attention, as the 

 specimens have been preserved by a method which appears to be 

 successful in maintaining the brilliant colours of these animals 

 and should render them an attractive exhibit for the Shell 

 Gallery. 



In addition to the above, four thousand and nine specimens 

 have been presented, and one thousand four hundred and 

 eighty-eight purchased during the year, of which special 

 mention may be made of the following series: — 



General. 



A collection of " Trade Shells " ; 'presented hy the Port of 

 London Authority. 



A collection of two hundred and eighty-nine shells from 

 Japan, the Malay Archipelago, and Australia ; presented by 

 C. S. Betton, Esq. 



Europe. 



One thousand one hundred and thirty-four shells of Pisi- 

 dium, the figured specimens in " The Catalogue of British 

 Species of Pisidium " ; pvresented hy B. B. Woodiuard, Esq. 



Asia. 



Thirteen shells (all co-types) from the Lake of Tiberias ; 

 presented by Dr. N. Annandale. 



Four examples including the type of Aporertiodon tomlini 

 from Singapore ; presented by J. R. le B. Toralin, Esq. 



Fourteen shells, including types, from Beilan-Beilan Id., 

 Moluccas ; purchased. 



One hundred and seventy-four land and fresh-water shells 

 from Chungking ; presented by W. R. Brown, Esq. 



Fifteen type shells from Japan ; purchased. 



Africa. 



One hundred and seventy-two land shells from various 

 localities in Algeria ; presented by the Hon. Walter Rothschild, 

 F.R.S. 



