124 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



The Leeds Collection of Fossil Reptilia (a part of which 

 was acquired by purchase during the past year) was removed 

 from Eyebury, near Peterborough, and has since been un- 

 packed and temporarily displayed in a series of table and 

 wall-cases in the Eastern Basement. 



The Store-casts and onoulds of fossils (chiefly of Vertebrata), 

 which, during the past five years, have increased from 2.36 to 

 462 in number, have all been re-arranged and carefully labelled, 

 in accordance with the new Catalogue, in the " Casts and 

 Mould Store-rooms," in the North-east Basement. 



Mollusca. — Gephaloi^da (Gallery No. 7). 



(a) Nautiloidea. — The largest specimen of Nautilus ornatus, 

 F. and C, yet obtained, from the Inferior Oolite, Sherborne, 

 Dorset, has been mounted on a stand and placed between Wall- 

 cases 13 and 14. 



A beautiful preparation of the animal of the recent Nautilus 

 poiivjyUitis, preserved in a section of its shell, has been mounted 

 in a glass cell, in spirit, and exhibited between Wall-cases 

 Nos. 1 and 2, for comparison with the fossil forms. 



Seventy-five specimens of Gonvphoceras, 12 of Tetvaimoceras, 

 three of Hexartieroceras ; 12 of Ascoceras, one of Glossoceras ; 

 and 20 of Poterioceras, have been mounted on tablets and 

 arranged on the slope of Wall-case No. 7. The unmounted 

 specimens of these genera of Palaeozoic Nautiloidea have been 

 arranged in drawers beneath Table-case No. 71. 



(h.) Ammonoidea. — Twenty-seven Ammonites, illustrating 

 variation in form and ornamentation of their shells, have been 

 mounted on tablets and arranged in Table-case No. 57. 



Twenty-three Aptychi (opercula of Amraonites), from the 

 Chalk, have been mounted on tablets and placed in Table-case 

 No. 64. 



435 Ammonites from the Chalk have been mounted upon 

 tablets, named and arranged on the slope of Wall-case No. 4 

 and in Table-case No. 64. 



420 Ammonites, from the Greensand of Cambridge, and from 

 the Upper Greensand, Warminster, &c., have been mounted 

 and named and arranged in Table-case No. 65, and upon the 

 slope in Wall-case No. 5. 



386 Ammonities from the Gault have been named and 

 mounted on tablets and arranged partly in Table-cases No. 65 

 and 66, and partly in Wall-case No. 5. 



Eighteen Ammonites, of Neocomian age, have been named, 

 mounted upon tablets, and arranged in Wall-case No. 5. 



Ninety-six Ammonites from the Inferior Oolite (eleven of 

 which are mounted on blocks, and 85 upon tablets), have been 

 named and arranged in Wall-case No. 10. 



The number of Cephalopoda registered during the past year 

 was 481. 



(c.) Pteropoda — 4*78 Pteropoda have been mounted upon 

 tablets named and arranged in Table-case No. 72., including 



several 



