IGTTAKODONTID-E. 209 



Hulke, op. cit. pp. 141-143, who pointed out the resem- 

 blance. The present specimen exhibits very clearly the 

 reduction of the haemal surface by the encroachment of 

 the chevron-facets, of which the posterior is much the 

 larger. Mantell Collection. Purchased, 1853. 



Fig. 43. 



Iguanodon bemissartensis. — Oblique anterior view of an imperfect anterior 

 caudal vertebra ; from the Wealclen of Brook. About J. 



28627. An anterior caudal vertebra, wanting the extremities of the 

 transverse processes ; from Brook. The length of the 

 neural spine is twice the vertical diameter of the centrum. 



Same history. 



28656. A similar vertebra, wanting the extremities of the transverse 

 processes ; from Brook. Same history. 



28655. The centrum of a similar vertebra ; from Brook. 



Same history. 



28667. The chevron of an anterior caudal vertebra ; from Brook. 

 This specimen agrees closely with the type specimen de- 

 scribed by Hulke, op. cit. p. 142 ; the length of the forked 

 portion being 0,125, and that of the entire bone about 

 0,400. Same history. 



v 



