80 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



MOLLUSCA. 



The total number of acquisitions received and registered during 

 the year is 2,467. 0£ these 532 were "Terra Nova" specimens, 

 1,761 were presented by other donors and 174 were purchased. 



Attention is directed to the following noteworthy accessions : — 



The type and 16 other complete specimens of Katayama 

 (Blanfordia) nosophora from Japan ; presented hy Lieut.- Col. R. T. 

 Leiper, M.B. (This Mollusc is suspected in connection .with the 

 transmission of Schistosomiasis = Bilharziosis). 



59 exotic Gastropoda and Lamellibranchia from abyssal depths 

 in the E. Atlantic ; presented by the Irish Fishery Board. 



643 shells of Palsearctic Buliminoids ; presented hy John H. 

 Po7isonhy, -Esq. 



337 freshwater Gastropoda and Lamellibranchia, presumed to 

 be intermediate hosts of Trematodes, from the White Nile ; presented 

 hy the Director of the Wellcome Tropical Research Bureau, Khartoum. 



2 valves of Tridacna gigas weighing 250 and 233 pounds 

 respectively ; presented hy Mrs. G. W. Young. 



42 shells of brackish-water Gastropoda and Lamellibranchia 

 from Lake Chilka, Orissa ; purchased. 



Arachnida. 



The accessions number 621, of which the following should be 

 mentioned : — 



350 Arachnida from various localities, including the type of 

 a new species of Tick (Ixodes nairobiensis) ; presented hy the 

 Imperial Bureau of Entomology. 



10 parasitic Mites, including co-types of two new species, from 

 India ; presented hy the Trustees of the India?! Museum, Calcutta. 



20 specimens of a new parasitic mite (Laelaps nuttalli) found 

 on rats at Colombo ; presented hy Dr. L. F. Hirst. 



The type of a new Scorpion (Charmus indicus) ; presented hy T. 

 Bainhrigge Fletcher, Esq. 



The type of a new Pedipalp (Stygophrynus moultoni) from 

 Sarawak ; presented hy J. C. Moulton, Esq. 



Crustacea. 



The accessions number 208, of which the following are the most 

 important : — 



Syntypes of a recently described species of Copepod from 

 Epping Forest ; j^resented hy D. J. Scourfield, Esq. 



A large specimen of the common Lobster from Selsey ; presented 

 hy E. Heron- Allen, Esq. . , : 



