Ch. XVI] FLUVIO-MARINE series IK ISLE OF WIGHT. 209 



shales and marls, in all of which land-shells are common, especially at Sconce, 

 near Yarmouth, and have been described by Mr. Edwards. The Bulimics ellip- 

 ticus (fig. 184), and Helix occlusa (fig. 185), are among its best-known laiid- 



Fis. 184. 



Bulimus eUiptictis, Sow. 

 Bcmbridge Limestone, 

 half natural size. 



Fig. 185. 



Fig. 186. 



Ifelix oeclusa, Edwards, 

 Sconce Limestone, 

 Isle of Wight. 



Faludhm orMaularin, Bembridgc. 



shells. Paludina orbicularis (fig. 186) is also of frequent occurrence. One of 

 the bands is filled with a little globular Faludlncu Among the freshwater 



Fig. 187. 



Fig. 188. 



Fig. 189. 



Flanorhis discus, Edwards. Bem- 

 bridge. n diam. 



Lymnea longiscata, Brard. 



Chara tuberculata. 

 Bembridge Lime- 

 stone, L of Wisht. 



pulmonifera, Lymnea longiscata (fig. 188) and Planorhis discus (fig. 187) are 

 the most generally distributed : the latter represents or takes the place of the 

 Planorhis euomphalus (see fig. 192), of the more ancient Headon series. Chara 

 tuberculata (fig. 189), is the characteristic Bembridge gyrogonite. 



From this formation on the shores of Whitecliff Bay, Dr. Mantell ob- 

 tained a fine specimen of a fan palm, Flahellaria Lamanonis^ Brong., a 

 plant first obtained from beds of corresponding age in the suburbs of 

 Paris. The well-known building-stone of Binstead, near Ryde, a lime- 

 stone with numerous hollows caused by Cyrence which have disappeared 

 and left the moulds of their shells, belongs to this subdivision of 

 the Bembridge series. In the same Binstead stone Mr. Pratt and 

 the Rev. Darwin Fox first discovered the remains of mammalia char- 

 acteristic of the gypseous series of Paris, as Palceotherium magnum 



14 



