A MONOGRAPH 



I0LLUSCA FROM THE GREAT OOLITE, 



CHIEFLY FKOM 



MINCH1NHAMPTON 



THE COAST OF YORKSHIRE. 



BY 



PROFESSOR MORRIS, E.O.S. and JOHN LYCETT. 



PART III. 



BIVALVES. 



LONDON 



PRINTED FOR THE PALiEONTOGRAPHICAL SOCIETY. 

 1854. 



