/ 



THE FAUNA OF BRITISH INDIA, 



INCLUDING ■ '^, 



CEYLON AND BURMA. 



Published under the AirTHORiTV of the Secret ary ot 

 State for India in Council. 



EDITED BY SIR ARTHUR E. SHIPLEY, Sc. D.Cantab., HON. D.So. Princeton, 



HON. LL.D. Michigan, F.R.8. 



ASSISTED BY GUY A. K. MARSHALL, HON. D.Sc. (Oxon.), F.Z.S. 



MOLLTJSCA.-IIL 



LAND OPERCULATES. 



(CYCLOPHOEin.E, TKUNCATELLID^, ASSIMINEID^, 

 HELICINID.E.) 



LONDON: 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



CALCUTTA: I BOMBAY: 



THACKER, SPINK, & CO. j THACKER & CO.. LIMITED. 



Februari/, 1921. 



'.m 



