TKACHODOSTTIDJi}. 245 



telli; noticed by Leidy in the 'Cretaceous Eeptiles of 

 the United States' (Smiths. Contrib. Knowl. 1864), p. 86, 

 and also by Seeley in the ' Quart. Journ. Geol. Soc' vol. 

 xxxv. p. 591, as resembling Trachodon {Hadrosaurus), 

 and referred to that genus by the writer in vol. xliv. 

 p. 47 of the latter journal. 



Presented by Sir B. Owen, K.C.B., 1884. 



The following specimens from the Cambridge Greensand are 

 provisionally referred to this species. 



33884. An imperfect proximal phalangeal (? of the pes). 



Purchased, 1859. 



33885. A second or third phalangeal. Same history. 



33886. A terminal phalangeal of the third digit of the pes. Closely 



resembles the corresponding bone of Iguanodon. 



Same history. 



33887. A smaller terminal phalangeal of similar type. 



Same 



EEMAINS OF WeALDEN DlNOSATTES OE WHICH THE AFFINITIES 

 AEE UnCEETALN". 



28649. The centrum and base of the arch of a cervical vertebra 

 belonging to a form agreeing approximately in size with 

 Iguanodon mantelli ; from the Isle of Wight. The cen- 

 trum is longer than in typical cervicals of Iguanodon. 



Mantell Collection. Purchased, 1853. 



28519. A centrum of similar type; from Cuckfield. Same history. 



R. 604 e. Pour associated imperfect dorsal vertebras of a much 

 smaller form ; from the "Wadhurst Clay of Hastings. 

 The centrum has subcircular faces ; there is a rib-facet 

 on the arch, and the neural canal is somewhat narrow. 

 These specimens may perhaps belong to the Scelidosauridce. 

 Dawson Collection. Purchased, 1884. 



R. 148. The centra of two anchyloscd sacral vertebras of a very 

 large form ; from the Isle of Wight. These vertebras are 



