palrcontoorapbical Society 1905. 



A MONOG R A P H 



BRITISH FOSSIL 



ECHINODERMATA 



FROM 



THE CRETACEOUS FORMATIONS. 



VOLUME SECOND. 

 THE ASTEEOIDEA. 



W. K. SPENCER, B.A., F.G.S. 



PART THIRD. 



Pages 67—90; Plates XVII— XXVI. 



LONDON: 

 PRINTED FOR THE PAL.EONTOGRAPHIC AL SOCIETY. 



L905. 



