MONOGRAPH 



ON THE 



REPTILIA 



OF THE 



KIMMERIDGE CLAY AND PORTLAND 



STONE. 



BY 



SIR RICHARD OWEN, K.C.B., D.C.L., F.R.S., 



FOREIGN ASSOCIATE OF THE INSTITUTE OF FBANCE, 

 ETC. ETC. 



LONDON: 



PRINTED FOR THE P AL^IO NTOGRAPHIC AL SOCIETY. 



1861—1889. 



