TABLE OF CONTEXTS. 
Introduction 
Summary of species 
Peleeypocla 
Scaphopoda 
Gastropoda 
rteropoda 
OpistliobrancMata 
Pidmonata 
Ctenobraiicliiata 
N ncleobran cbiata 
Pectiiiibrancbiata 
Amphineura 
Polyplacopbora 
Aplacophora 
Synonymic notes 
Index to genera 
Bibliography 
Explanation of plates 
m 
rage, 
1 
9 
9 
57 
58 
58 
GO 
GG 
G7 
138 
139 
18G 
186 
198 
200 
203 
209 
213 
