SCELLDOSATJEIDiE. 



183 



41323. An undetermined bone ; from Lyme -Begis. 



Purchased, 1869. 



42074. An undetermined bone ; from Lyme-Kegis. 



Purchased, 1870. 



Genus ACANTHOPHOLIS, Huxley 1 . 



The serrations of the teeth more complex than in Scelidosaurus, 

 and descending nearer to the base of the crown, which is lancet- 

 shaped. The dermal spines unsymmetrical, compressed, convex on 

 one side and concave on the other, with a sinuous convex anterior 

 and concave posterior edge. The vertebrae approximate to those 

 of Scelidosaurus, but the posterior dorsals are less compressed, and 

 the anterior caudals are shorter and less oblique, with the neural 

 spine more inclined backwards. 



Acanthopholis horridus, Huxley 2 . 



The type species. The type specimen indicates an individual 

 approximately equal in size to the skeleton No. E. 1111 of Scelido- 

 saurus harrisoni. 



Hob. Europe (England). 



Fig. 34. 



6 



Acanthopholis horridus. — Anterior (a) and left lateral (b) views of an anterior 

 caudal vertebra; from the Chalk-Marl of Folkestone. £. (From the 

 ' Quart. Journ. Geol. Soc.') 



44581. An anterior caudal vertebra, wanting the extremities of the 

 (Fig.) transverse processes and of the neural spine and the post- 



1 Geol. Mag. dec. 1, vol. iv. p. 65 (1867). 2 Loc. cit. 



