GUIDE 



TO THK 



SYSTEMATIC DISTRIBUTION 



OK 



MOLLUSCA 



IN III K 



BRITISH MUSEUM 



PART I 



HY 



JOHN EDWARD GRAY, 



PHD., F.R.S., P.L.S., P.Z.S. Ac. 



LONDON: 

 PRINTED BY ORDER OF THE TRUSTEES 

 1857. 



