170 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



The Palaeozoic Gastropoda and Lamellibranchia registered, 

 labelled, and incorporated durin^^ the year include : — Specimens 

 from the Ordovician of North Wales ; Upper Devonian Gastro- 

 poda from France ; large series of Devonian Lamellibranchia 

 from Germany ; and an extensive series of Carboniferous 

 Gastropoda and Lamellibranchia, chiefly from the Isle of Man 

 and Northumberland (Caroline Birley Bequest). 



The Devonian Gastropoda and Lamellibranchia from 

 Germany have been named and arranged in two drawers under 

 table-case A. 5, and in five drawers under table-case A 6 

 respectively, in Gallery 8. 



The exhibited series of British Cambrian, Ordovician and 

 Silurian Gastropoda and Lamellibranchia is in course of 

 re-arrangement. 



The Mesozoic and Tertiary Gastropoda and Lamellibranchia 

 registered, labelled, and incorporated during the year include : — 

 Specimens from the Alpine Trias received in exchange from the 

 Munich Museum; Jurassic and Cretaceous shells from France 

 (Michalet and Charpy collections) ; Cretaceous shells from 

 Zululand, collected and presented by William Anderson, Esq., 

 described in Trans. Roy. Soc, S. Africa, 1909 ; specimens from 

 the Trimingham Chalk and Weybourn Crag (Savin collection); 

 Belgian Tertiary shells ; and a large miscellaneous collection 

 from the Caroline Birley Bequest. 



Progress has been made with the revision of the Tertiary 

 and Post-Tertiary non-marine Gastropoda, which are being 

 arranged and labelled in drawers. 



Among the most important additions to the exhibited 

 collection are Oligocene Mollusca from Creechbarrow, Dorset, 

 and the type-specimens of Anodonfa hecMesi from the Wealden 

 of Sussex. 



Number of specimens of Mollusca registered : Cephalopoda, 

 995 ; Gastropoda, 2,804 ; Lamellibranchia, 3,859. 



Arthropoda (Gallery 8 and Workroom). — Attention has 

 chiefly been paid to the British Cretaceous Cirripedes, and a 

 number of specimens have been registered and incorporated 

 from the recently acquired collections of Gen. Cockburn, 

 F. Mockler, W. Vicary, and others. Those from the older 

 collections of C. Darwin, J. S. Bowerbank, J. S. Gardner, 

 J. Sowerby, F. Dixon and others have also been worked through, 

 determined, re-arranged, and the specimens of historic import- 

 ance identified. Foreign Cirripedes of the Maestricht Chalk 

 (Bosquet collection) have been registered. 



Among the other Arthropods registered and incorporated, 

 are Cambrian Trilobites described by E. S. Cobbold, Ordovician 

 and Silurian Trilobites from the No'rthern Shan States, Burma 

 (Geol. Survey India), Trilobites from Christiania,the Bosphorus, 

 and Sardinia, and a number of miscellaneous acquisitions from 

 various parts of the world. 



