8 TABLE OF CONTENTS. 



Description of genera and species — Continued. 



Class Stelleroidea — Continued. Page. 



Subclass Ophiuroidea 267 



Family Onychasteridse 268 



Onychaster 268 



Forms whose relationships are unknown 274 



Cribellites carbonariits 274 



Order Ophiocistia 275 



Family Eucladiidse 276 



Eucladia 276 



Euthemon 279 



Bibliography 281 



Explanation of plates 289 



Index 303 



