CONTENTS. 



TUNICATA . 



Page 

 1 



OQ 

 CONCHIFERA ^° 



Brachiopod.j 



207 



Gasteropoda ^^'-' 



9 1 o 



OriSTnOBRANCIIIATA --i-i 



Prosobrancuiata 2o8 



pulmonifera ^^'^ 



Pteropoda "^*^3 



Cephalapoda S08 



Index 519 



