THE YOUNG NATUKALIST. 



45 



3. Dark shaly marls, with ferruginous concretions. 



4. Green marls, with Paludina lenta* 



5. Pale yellow stony band. 



6. Green clays, with Melania ?nuricata. 



7. Band of comminuted Melania muricata. 



8. Green marly stone band. 



9. Band of comminuted Cy reuse. 



10. Grey Septarian stony band. 



11. Greenish marls, with Cyrence obovata. 

 IS. Band of Septarian stone. 



13. Greenish clays, full of Melania muricata, constituting the last bed 

 exposed on the shore. 



Near Yarmouth, the Bembridge Marls are only exposed to view along the 

 shore, at low water mark, and in Colwell Bay the beds are again clearly 

 exhibited, from the limestone down to the sands, forming the base of Headon 

 Hill, and in Alum Bay from those sands to the bottom of the plastic clay. 



Fossil Eemains of the Bembridge Series. — Mollusca. 



Achantina costellata 

 Area Websteri 

 Bulimus ellipticus 



„ heterostomus 

 Cerithinm Austenii 

 „ elegans 

 „ mutabile 

 Clausilia striatula 

 Corbula pisum 

 Craspedopoma Elizabethsea 

 Cyclotoma mumia 

 Cyclotus cinctus 

 ,, nudus 

 Cytherea incrassata 

 Cyrena obovata 

 „ obtusus 

 „ pulchra 

 „ semistriata 

 „ transversa 

 Helix D'Urbani 

 „ globosa 



Headonensis 



„ labyrinthica 

 „ occlusa 

 „ omphalus 

 „ tropifera 

 „ Yectiensis 



Limnaea cincta 

 „ longiscata 

 „ mixta 

 „ pyramidata 



Lucina Thierensi 



Melania costata 

 „ excavata 

 „ fasciata 

 „ Forbesii 

 ,, muricata 

 „ turritissima 



Melanopsis brevis 

 „ carinata 

 „ fusiformis 

 „ subulata 



Mytilus affinus 



Natica labellata 



