140 ACCOUNTS, ETC.; OF THE BRITISH MUSEUM. 



collection will be rearranged when the special cases are received. 

 Part of this collection has been relabelled and remounted. A 

 catalogue of the Norman collection has been prepared, following 

 the present arrangement of the cabinets. The model of 

 Torsion in the Gastropoda has been replaced by a stronger 

 one in metal executed by Messrs. Basset Lowke. The rearrange- 

 ment, remounting and renaming of the exhibited Zonitidae have 

 been considerably advanced, the Department having obtained 

 the services of Mr. G. K. Gude for this purpose ; while the 

 economic exhibit has been rearranged and preparations made 

 for its extension. 



Detailed reports, with descriptions of new and interesting- 

 forms, have been prepared upon collections from South Africa, 

 Madagascar and New Guinea (Utakwa Expedition). A2)ore- 

 modon, a curious genus presumably allied to Vallonia and a 

 Palseozoic Chiton from the Lower Ordovician have been 

 examined and described. A collection from Henderson Island 

 has been worked out and an account of it published. The 

 anatomy of Veronicella nilotica has been further investigated 

 and an account supplementary to the type-description has been 

 prepared. Collections from West Australia, the Solomon 

 islands, Goodenough Island and Peru have been reported upon 

 and incorporated. The Japanese species of Haliotis have been 

 studied and a note upon H. sieholdii has been prepared. A 

 number of smaller collections and series have been worked over. 

 The MoUusca from an Azilean shell -mound on the Island of 

 Colonsay are under examination and a report is being prepared. 

 The registration of the Norman collection has been completed, 

 a total of 51,051 specimens having been entered. A number of 

 species from the Sikes collection have been critically examined 

 and verified. The arrangement and preparation of the Blan- 

 ford and Godwin-Austen collections of Indian Land Mollusca 

 have been continued by Lieut. -Col. H. H. Godwin-Austen, F.R.S. 



Myriopoda and Arachnida. 



Special attention was given during the year to the study of 

 the parasitic forms of Acari ; a large number of species belong- 

 ing to this order were determined and a short preliminary 

 report on some species found on rats was published. A second 

 consignment of Arachnida from the Seychelles, received from 

 Prof. J. Stanley Gardiner, F.R.S., has been reported upon. 

 Nearly all the first half of the Koch collection of Myriopoda 

 and Arachnida has been arranged in systematic order and 

 registered. About two-thirds of the spirit collection of 

 Myriopoda and Arachnida has been re-spirited. A second model 

 of a tick (gorged female of Amhlyomma hebrceum) is now 

 ready for exhibition and a third model is being prepared. 



Crustacea and Pycnogonida. 



In the exhibited series of Crustacea, British specimens of 

 the Fairy Shrimp {Ghirocephalus diaphanus) and specimens 



