TABLE OF CONTENTS. 



Page. 

 DEDICATION iii^ i^ 



TABLE OF CONTENTS v,' vi 



Erkata vi 



PREFACE " . . vii-x 



INTRODUCTION xi-xxii 



SYNOPSIS OF THE GENERA xxiii-lxii 



DESCRIPTION OF SPECIES 269-518 



MoDioMORPHA 269-293 



GoNiopHORA 293-306 



MiCRODOK (Cypricardella) 307-313 



NocuLA 313-324 



NuccLiTES 324-328 



Leda . . . . . 329-332 



PALiEONEILO 333-349 



Macrodon 349-351 



Ptyohodesma 352-354 



Nyassa 354-358 



Grammysia 358-384 



EUTHYDESMA 385-386 



Edmondia 386-393 



Sphenotub 394-406 



Spathella 407-408 



conocardil'm 409-415 



Panenka . . . . • 416-425 



Glyptocardia 426-427 



Pr.«cardium 427 



Paracardiom 428 



Pararca 429-433 



Cardiopsib 433 



LnN0LicARDiDM 434-439 



Paracyclas 440-446 



ScHizoDUB 447-459 



Prothyris 460-462 



Soleuya 463 



