180 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



Palaeozoic Gastropoda and Lamellibranchia registered, la- 

 belled, and incorporated include : — Gastropoda and Lamelli- 

 branchia from the Ordovician of Scotland (McPherson coll.) ; 

 Gastropoda and Lamellibranchia from the Devonian rocks of 

 Devon (A. Champernowne coll.) ; Lamellibranchia from the 

 Devonian of Germany (A. Champernowne and S. Dohm colls. ) ; 

 Gastropoda from the Devonian of Germany (A. Champernowne 

 and Bather colls.). 



The unexhibited Lamellibranchia belonging to the Gilbertson 

 collection of Carboniferous fossils, that were removed from 

 Gallery 11 and re-labelled, have been incorporated with the 

 general collection. 



A small block containing Gastropoda from the Permian of 

 Durham has been mounted in table-case 14 (Gallery 8) ; and a 

 specimen of Aviculopecten dissimilis from the Carboniferous 

 Limestone of Yorkshire has been similarly mounted in table- 

 case 15 (Gallery 8). 



The determination and re-arrangement of all the British 

 Carboniferous Gastropoda have been completed ; a selection 

 has been mounted and exhibited in table-case 15, and the rest 

 re- arranged in drawers. 



Considerable progress has been made with the determi- 

 nation and re-arrangement of all the British Carboniferous 

 Lamellibranchia, and some have been mounted and exhibited 

 in table-case 15. 



Slip-catalogues of type, figured, and historical specimens of 

 (a) Palaeozoic Lamellibranchia, (6) Palaeozoic Gastropoda, and 

 (c) the Conularida respectively, are in progress. 



The Mesozoic and Tertiary Gastropoda and Lamellibranchia 

 registered, labelled, and incorporated include : — British 

 Rhaetic specimens (L. Richardson coll. ) ; a French Mesozoic 

 collection (Yalabregue), shells from the Lower Cretaceous 

 of Sandown, Isle of Wight (Wilmer coll.), and from the 

 Upper Cretaceous of Galicia (Zuber coll.); Tertiary shells 

 rfrom New Zealand (Geol. Surv. N. Zealand), and Tertiary and 

 Post-Tertiary shells from the West Indies (Wilmer coll.) ; a 

 series from the Eocene of Somaliland (Burls coll.), and another 

 from the Miocene of British East Africa (Oswald coll.); an 

 apparently Pliocene collection from Nigeria (Parkinson coll.); 

 British Post-Pliocene non-marine shells (J. P. Johnson coll.) ; 

 and Neolithic non-marine shells from Ireland (Welch coll.). 



Number of specimens of MoUusca registered : — Cephalopoda, 

 2,280; Gastropoda, 5,393 ; Lamellibranchia, 1,394. 



Arthropoda (Gallery 8 and Workroom). — The acquisitions 

 registered, labelled, and incorporated include : — Trilobita 

 from the Upper Ordovician of Girvan (W. McPherson coll.) 

 and Haverfordwest (Bather coll.), the Silurian of New South 

 Wales (J. Mitchell coll.), and the Devonian of the Eifel (Dohm, 

 Bather, and Hopmann colls.); Phyllopoda from the Rhaetic 

 beds of the west of England (L. Richardson coll.); Ostracoda 

 from the Leptaena-hsilk of Dalecarlia (Bather coll.) and the 



