TABLE OF CONTENTS, VOL. IV. 
PART I. THE MARINE CRETACEOUS INVERTEBRATES. 
By T. W. STANTON. 
Page 
LETTER OF TRANSMITTAL i 
INTRODUCTION 3 
Pelecypoda ............ II 
SCAPHOPODA ............ 28 
Gastropoda ............ 29 
Cephalopoda ............ 35 
PART II. TERTIARY INVERTEBRATES. 
By A. E. ORTMANN. 
LETTER OF TRANSMITTAL 45 
CONTENTS 47 
INTRODUCTION 48 
SYSTEMATIC PART 51 
ECHINODERMATA 51 
Eciiinoidea ............ 51 
Cidaridce Wright .......... 51 
Echinidce Wright .......... 52 
Clypeastridce Ag. .......... 55 
Cassidulidce Ag. .......... 60 
Spatangidce Ag. .......... 62 
VERMES 63 
Ch,etopoda ............ 63 
Tubicolce ( Sedentaria ) . . . . . . . ' . . 63 
BRYOZOA 64 
Chilostomata 64 
Cellariidce Hcks. .......... 64 
Escharidce Johnst. .......... 67 
Cyclostomata ............ 68 
Lichenoporida Sm. .......... 68 
BRACHIOPODA 70 
Rhynchonellidce d’Orb. ......... 70 
Terebratulidce King .......... 73 
v 
