DEPARTMENT OF GEOLOGY. 137 



A small collection to illustrate the supposed evolution of 

 species of Viviparus (Paludina) in the Pliocene of Austria, 

 has been mounted in a glazed frame on the wall between wall- 

 cases 2, 3, Gallery 8. 



The unexhibited collections of French Tertiary Lamelli- 

 branchia and Gastropoda have been removed from the drawers 

 in Gallery 8 to a new cabinet in the Workroom, in which they 

 have been re-arranged and labelled. 



The unexhibited collection of foreign Palaeozoic Gastropoda 

 and Lamellibranchia has been removed from the drawers 

 beneath table-cases 15 and 16, Gallery 8, and arranged in the 

 drawers beneath the upright cases A 5 and A 6 in the centre of 

 the same gallery. 



A slip-catalogue of the types, figured and historical specimens 

 of Palaeozoic Gastropoda and Lamellibranchia is in progress. 



The Lamellibranchia and Gastropoda registered, labelled, 

 and incorporated during the year include: — Ordovician and 

 Devonian specimens from the Valpy and Vicary collections ; a 

 Jurassic series from the J. F. Blake collection, and some 

 Jurassic specimens from Arabia ; English, French, and Indian 

 Eocene collections: Oligocene specimens from Germany (K. 

 Fischer collection) ; and Post-Pliocene specimens from India 

 (presented by Col. Leigh). 



Number of specimens of Mollusca registered : Cephalopoda, 

 804; Gastropoda, 1,325; Lamellibranchia, 1,517. 



Arthropoda (Gallery 8 and Workroom). — The foreign 

 Silurian, Devonian, and Carboniferous Trilobites have been 

 removed to new cabinets in the Workroom, where the whole of 

 the study series of Trilobites is now placed, occupying 178 

 drawers. The Cirripedia have also been removed from the 

 drawers in the Gallery to those in the Workroom, and the 

 Insecta have been transferred to the drawers of a new upright 

 case in the Gallery. The cubes thus set free have been allotted 

 to the growing collection of Brachiopoda. 



The collections registered and incorporated during the year 

 include an additional series of insects in amber, transferred 

 from the Zoological Department ; 229 Cambrian and Ordovician 

 Trilobites from Oeland (Bather collection) ; and Miocene Insects 

 from Florissant (Cockenell collection). Progress has also been 

 made in registering the Brodie Collection of Fossil Insects. 



Among the more interesting additions to the exhibited series 

 are the type-specimen of Ranina granulosa, and the unique 

 Lithomantis carhonarius. A remarkable series of insects 

 from Florissant, including many types and figured specimens, 

 has been placed in a special case near the entrance to the 

 Gallery, to form part of a special temporary exhibit, illustrating 

 the Fauna and Flora of this Miocene lake-basin. 



Number of specimens of Arthropoda registered, 1,836. 



Annelida (Gallery 8). — The large number of specimens 

 sorted, labelled, registered, and incorporated, includes series 



