EXPLANATION OF THE PLATES. 



Plate XX. 



FOSSILS OF THE WEALDEN (COtltinUed). 



Illustrates the internal structure o{ Endogenites erosa ; the details are given at pp. 175, 1 76. 









Plate XXI. 









FOSSILS OF THE WEALDEN {continued) 



Fig 



1. 

 2. 

 3. 

 4. 

 5. 

 6. 



Cypris Valdensis. 

 — — — tuberculata. 

 spinigera. 



Corbula alata. 

 Psammobia tellinoides. 



Fig. 7. Cyclas parva. 



8. subquadrata. 



9. elongata. 



10. media. 



11. , (var.) 



12. angulata. 



Plate XXII. 







FOSS 



LS OF THE WEALDEN AND PORTLAND-S 



Fig 



1. 

 2. 

 3. 

 4. 

 5. 



WEALDEN. 



Exogyra Bulla. 

 Ostrea distorta. 

 Bulla Mantelliana. 

 Melanopsis ? tricarinata. 

 attenuata. 



Fig. 6. Paludina Sussexiensis. 



7. Neritina Fittonii. 



8. Tornatella Popii. 



9. A Cone from, the Isle of Pur- 



beck ; (p. 349.) 

 10. A Cone from Sussex ; (p. 

 349.) 



Fig. 



13. 

 14. 

 15. 

 16. 

 17. 



Cyclas major. 

 Unto Mantellii. 



subtruncatus. 



Gualterii. 



Martinii. 



18. Mytilus Lyellii, 



Fig. 11, An unknown body from 

 Quainton ; (p. 349.) 



PORTLAND-STONE. 



12. Lucina Portlandica. 



13. Cytherea rugosa. 



14. IVigonia incurva. 



PORTLAND-STONE (continued) 

 Fig. 1. Oi^rea falcata. 



2. Nerita angulata. 



3. Natica elegans. 



4. Buccinum natico'ide. 



5. angulatum. 



Plate XXIII. 



FOSSILS OF THE PORTLAND-STONE, KIMMERIDGE-CLAY, AND OXFORD-OOLITE 



Fig. 6. Terebra Portlandica. 



KIMMERIDGE & WEYMOUTH STRATA. 



7. Serpida variabilis. 



8. 



tnserrata. 



9. Panopoea depressa. 



Fig. 10. Exogyra Virgula. 

 1 1 . Trigonellites latus. 



OXFORD-OOLITE. 



12. Nerinea Goodhallii. 



Plate XXIV. 



Illustrates Mr. Bell's Memoir "On a new fossil species of Chelydra" : p. 379 — 381. 



Plate XXV. 



Illustrates Professor Sedgwick's memoir " On the new red sandstone series, in the basin 



" of the Eden and north-western coasts of Cumberland": p. 383 — 407. 

 Fig. 1. Section on the coast of Cumberland, between Farton and St. Bee's Head: p. 391 



—393. 

 Fig. 2. Section from the mountains east of Mollerstang, to the overlying conglomerates 



in the valley of the Eden above Kirkby Stephen ; showing the great fault and the 



breaks in the carboniferous series : p. 383 — 390. 

 Fig. 3. Section from the greywacke mountains of Westmorland, through Orton Scar and 



Burr els, to the Edeji ; p. 386. 

 Fig. 4. Section exposed in Ben How quarry, between St. Bees and IVhitehaven: p. 388. 

 Fig. 5. Section from the mountains of Copeland Forest, through Cold Fell, to the sea 



north of the river Colder: p. 389 — 391. 



