A MONOGRAPH 



or THE 



MOLLUSC A FROM THE GREAT OOLITE, 



CHIEFLY FEOM 



MINCHINHAMPTON 



AND 



THE COAST OF YORKSHIRE, 



BY 



J. MOEEIS, F.G.S. AND JOHN LYCETT. 



PART I. 



UNIVALVES. 



LONDON : 



PRINTED FOR THE PALuEONTOGRAPHICAL SOCIETY. 



1850. 



