vi THE LIFE OF THE MOLLUSCA 



to reproduce illustrations from their publications or 

 taken from specimens on exhibition in the Natural 

 History Museum. Other illustrations have been 

 kindly lent by Mr. W. M. Webb, F.L.S. 



To his colleagues in the Natural History Museum, 

 Mr. E. A. Smith, I.S.O., and Mr. G. C. Crick, the 

 author is indebted for valuable assistance in regard 

 to points of nomenclature. 



