Dr. FiTTON on the Strata below the Chalk. 205 



Terebratula biplicata. Chale Bay. 



T Gibbsiana. Atherfield Point. 



T" ' latissima. Near Atherfield. 



T nuciformis. East of Shanklin. 



T — — Sella. Sandown Bay. Atherfield Point: in greens and, and in fuller's 



earth. With Pecten obliquus ; Chale Bay. 



T — . parvirostris. Pl.XIV. f. 13. Debris on the shore east of Shanklin. 



Thetis major. Atherfield Hill. Blocks loose on the shore. 



T minor. In ferruginous nodules, west of Shanklin Chine. 



Trigonia alccformis. East of Shanklin ; of unusually large size : and in ferruginous 



nodules, west of the Chine. Atherfield Point; large, in sand very like the 



middle Sandgate bed. 

 Turbo conicus. West of Shanklin Chine : in ferruginous nodules. 



T rotundatus ? Shanklin. 



Turrilites} Near Atherfield. 



Vermetus concavus. With Terebratula Sella : Atherfield ; and east of Shanklin. 



[ Wealden.'] 



Ammonites. A fragment imbedded in a portion of Sussex marble, with Cyclas, Ostrea, 

 and Paludina elongata. This Ammonite probably formed part of a foreign mass 

 accidentally brought into the Weald clay, during the progress of its deposition. 



Cyclas major. Atherfield Rock, in Sussex marble and Weald clay : also forming 

 singular prominences on thin layers of stone; see p. 197 line 24, and p. 198. 

 Cowleaze Chine. In ironstone, west of Shepherd's Chine. Barnes's Chine, very 

 large. Compton Bay. 



C media. Sandown Bay. Atherfield Rock, about 2 inches thick, in a bed al- 

 most composed of these shells, incrusted with fibrous carbonate of lime. West 

 of Shepherd's Chine : in coarse ferruginous sandrock, probably one of the sub- 

 ordinate beds of the Weald clay: in pyrites. Cowleaze Chine. Barnes's Chine. 



C membranacea. Sandown Bay : large, preserving its iridescence. Near Ather- 

 field. Shepherd's Chine. Barnes's Chine. 



C . (A thick and gibbose species.) Sandown Bay in ironstone. 



Cy/im Valdensis. PI. XXI. fig. 1. Occurs throughout the Wealden. At Sandown 

 Bay ; Atherfield ; Shepherd's Chine ; Cowleaze Chine; Barnes's Chine ; Under 

 Barnes's High ; Brook Point ; Compton Bay. 



Cypris tuberculata. Pi. XXI. fig. 2. Near Atherfield and Cowleaze Chine. 



Modiola (new). Sandown Bay. 



Ostrea. A bed of limestone nearly composed of oyster shells occurs in the Weald- 

 clay at Sandown Bay ; near Barnes's Chine ; and on the west of Compton- 

 Grange Chine. 



Paludina acuminata. Near Atherfield. Near Barnes's Chine (young). 



P elongata. Occurs throughout the Wealden. Sandown Bay : in ironstone. 



Atherfield Rock : in clay. Tiepit, near Atherfield. Cowleaze Chine : in no- 



