CONTENTS. 



Preface . 



Dates of publication 



I. Titles 



II. Biology. 



Anatomy, Physiology, &c. 

 Distribution. 

 Geograpliical. 

 Non-Marine 

 Marine 

 Geological . 



III. Systematic. 



Mollusc A. 



Cephalopoda 



Gastropoda . 



Scaphopoda . 



Pelecypoda . 



Amphineura 

 Brachiopoda . 

 tunicata 



Page 

 V 



vi 



11 



13 

 17 



20 



21 

 22 

 38 

 38 

 45 

 45 

 46 



