184 DINOSAURIA. 



zygapophyses ; from the Lower Chalk of Folkestone, Kent. 

 Figured by Seeley in the 'Quart. Journ. Geol. Soc' 

 vol. xxxv. p. 597, fig. 2, the figures being reproduced in 

 the accompanying woodcut. Purchased, 1873. 



47234. The centra of two trunk vertebrae with two associated 

 dermal scutes ; from Folkestone. The less imperfect scute 

 is of the type of the one figured by Huxley in the ' Geol. 

 Mag.' 1867, pi. v. fig. 2. Purchased, 1876. 



47234 a. Five dermal scutes ; from Folkestone. Same history. 



49917. A dermal scute; from Folkestone. This specimen is of a 

 broad and expanded type. Purchased, 1879. 



35280-2. Five imperfect centra of posterior caudal vertebras, provi- 

 sionally referred to this species; from the Cambridge 

 Greensand. Purchased, 1859. 



Genus REGNOSAURUS, Mantell 1 . 



Founded upon a mandible regarded by Owen as belonging to 

 Hylwosaurus. The roots of the teeth in that specimen are, however, 

 much smaller than those of the teeth referred by the same writer 

 to that genus ; and it may be that Vectisaurus 2 , which appears to 

 belong to this family, is identical with the present genus. (See 

 ' Quart. Journ Geol. Soc' vol. xliv. p. 52.) 



Regnosaurus northamptoni, Mantell 3 . 



The type species. Probably about the size of Acanthopholis 

 horridus. 



Hab. Europe (England). 



2422. Part of a right ramus of the mandible, showing dental alveoli 

 (Fig.) and the bases of the teeth ; from the Wealden of Cuckfield, 

 Sussex. Figured by Mantell in the ' Phil. Trans.' 1841, 

 pi. v., as Iguanodon, and made the type of the present 

 genus in the ' Phil. Trans.' 1848, p. 198 ; figured by Owen 

 in his < Wealden and Purbeck Eeptilia ' (Mon. Pal. Soc.-), 

 pt. iv. pi. viii. figs. 1—5, as (?) Hylceosaurus. In general 

 contour, and especially in the strong median external ridge 



J Phil. Trans. 1848, p. 198. 



2 Hulke, Quart. Journ. Geol. Soc. vol. xxxv. p. 421 (1879). 



3 hoc. cit. 



