CONTENTS. 



Page 



Advertisement, v 



Preface, .<....•• vii 



Introduction, ....... 13 



Explanation of the Parts of Shells, ... 18 



Multivalve Shells, .... 18 



Bivalve Shells, 19 



Description of Plate IV — Hinges of the Linnaean 



Genera of Bivalves, . . . .24 



Univalve Shells, .... 25 



Of the LiiHiaean Genera, 33 



Order I.— Multivalve Shells, ... 33 



II.— Bivalve Shells, .... 36 



III — Univalve Shells, ... 47 

 Table of the Linnaean Genera of Shells, with Lamarck's 



Divisions, ....... 62 



Lamarck's Genera of Shells, 65 



Class First. — Testaceous Mollusca, 

 Order I. — Heteropoda, 



11. — Cephalopoda, 

 III — Trachelipoda, 

 IV. — Gasteropoda, 

 V. — Pteropoda, 



65 

 65 

 66 

 76 

 107 

 119 



Class Second. — Conchifera, 

 Order I — Monomyaria, 

 II Dimvaria, 



121 

 122 

 134 



