Dr. FiTTON on the Strata below the Chalk. 179 



natella Popii^. in dark brown ferruginous stone, Lenthington-green, near Ton- 

 bridge Wells. Also at Tilgate Forest : M. 



Vnio Gualterii. PI. XXI. f. 16. Discovered by Mr. Walter Mantell in the dark brown 

 ferruginous sandstone of Lenthington-green, near Tonbridge Wells : M. 



U— Mantellii. PI. XXI. f. 14. In calcareous grit, passing into ferruginous sand, 

 near the top of theWeald clay ; Atherley and Henhurst, Surrey : F. Tilgate : M. 



U — Martinii. PI. XXI. f. 17. Upper part of the Weald clay, near Henhurst, Surrey: 

 Martin, and F. 



U — porrectus*. Min. Con. Weald clay, near Henhurst and Atherley, Surrey : F. 

 Large specimens, with Paludina Jluviorum and Ci/clas media, occur in the cliffs 

 west of St. Leonard's, in firm bluish grit : F. In sandstone, Tilgate Forest : M. 



Reptiles. The reptiles of the Weald clay and Hastings sands in Sussex, nearly all 

 of which have been discovered by Mr. Mantell, have been so fully treated of in 

 his various publications, that I shall refer to those works for an account of them, 

 and here only enumerate their names, with some of the chief places of their oc- 

 currence. The remains, however, of oviparous quadrupeds seem to be dispersed 

 throughout the whole of this formation, though hitherto found principally in the 

 Weald clay and the upper part of the sands beneath it : it is from this latter 

 situation, in the grit and sand -rock of Tilgate Forest, that the greater number of 

 Mr. Mantell's specimens were obtained. 

 Trioni/x Bakewelli. (Mantell, S.E. of England, p. 255.) Tilgate Forest. 

 Emj/s, (species unknown.) Same place. 

 Chelonia. Ditto. 

 Saurians, — of at least six genera. 



Crocodile. Remains of two, if not of four, species. (Ibid. p. 265.) 



The teeth, scales, and some of the bones, are mentioned by Mr. Mantell. as oc- 

 curring at Tilgate. A vertebra, which was considered by the Baron Cuvier, 

 as belonging to this genus, was found in the strata of shale and limestone at the 

 bottom of the Hastings sands, near Brightling, Sussex: F. 

 Phylosamus cylindricodon. The teeth : Tilgate Forest. (Mantell, S. E. of En- 

 gland, p. 292.) 

 Plesiosaurus. Vertebrae, teeth, and other remains : Tilgate. (Ibid. p. 281.) 

 Megalosaurus Bucklandii. The teeth, (supposed) ribs, and vertebrae. Tilgate 



Forest. (Ibid. p. 260.) 

 Hylceosaurus. (First described by Mr. Mantell, in a paper read before the Geo- 

 logical Society (Proceedings, &c. Vol. I. p. 410.), and since published in his 

 Geology of the S. E. of England -, p. 289, &c. Plate V.) The remains were 

 found in Tilgate Forest. 

 Iguanodon. (Mantell, Philos. Trans. 1825, p. 179.) The remains of this mon- 



* Several indistinct specimens of this genu?, including probably some new species besides 

 those above mentioned, have been found at Henfield and Atherley, in Surrey, by the Author; 

 and near Pulborough, by Mr. Martin. 



2a2 



