MONOGRAPH 



ON 



THE FOSSIL REPTILIA 



or THE 



WEALDEN AND PURBECK FORMATIONS. 



SUPPLEMENT No. IX. 



Pages 1—19; Plates I— IV. 



CEOCODILIA 



(GoNioPHOLis, Brachydectes, Nannosuchus, Theriosuchus, and Nuthetes). 



BY 



PEOFESSOR OWEN, C.B., F.E.S., 



FOEEIGN ASSOCIATE OF THE INSTITPTE OF FEANCE, 

 ETC. ETC. 



Issued in tJie Volume for the year 1879. 



LONDON: 

 PRINTED FOR THE PAL^ONTOGRAPHICAL SOCIBTY. 



1879. 



