TABLE OF CONTENTS 



Page 



Introduction ^ 



Instructions for Collecting Mollusks 4 



Univalves— Position for Study H 



Bivalves ^^ 



Class Amphineura "^"^ . 



Class Pelecypoda ^^ 



Class Scaphopoda '^-'- 



74. 



Class Gastropoda 



Class Cephalopoda ^^^ 



Plates ^^^ 



Glossary of Descriptive Terms and General Index 303 



Index of Genera, Subgenera, and Sections 307 



vii 



