A MONOGRAPH 



ON THE 



BRITISH FOSSIL 



ECHINODERMATA 



FROM 



THE OOLITIC FORMATIONS. 



BY 



THOMAS WRIGHT, M.D., F.R.S.E. F.G.S. 



COREESPONDING MEMBER OF THE ROYAL SOCIETY OF SCIENCES OF LIEGE, 

 AND SURGEON TO THE CHELTENHAM HOSPITAL. 



PART FOURTH, 



CONTAINING 



THE ECHINOLAMPID^, 



THE STRATIGRAPHICAL DISTRIBUTION OF THE OOLITIC SPECIES, 



THE BIBLIOGRAPHY OF THE ECHINODERMATA, AND 



ADDITIONAL NOTES ON THE ECHINOIDEA. 



LONDON : 



PRINTED FOR THE PAL^ONTOGRAPHICAL SOCIETY. 

 1860. 



