\1 



BRITISH FOSSIL SHELLS. 



The following living species are also found in a fossil state in drift and 

 strata of the British Isles. They are all enumerated in Mr. Searles 

 Wood's monograph of the Crag Mollusca. 



The numbers refer to the species as figured in our Plates, Mr. 

 Wood's nomenclature being inserted in italics when differing from 

 ours. 



Pl. I. Teredo 2. Pholas 11. Pholadidea 12. Gastrochsena 14, 

 as dubia. Saxicava 15, 16. Yenerupis 18. Mya 19, 20. Panopea 

 21, 21*, as Favjasil. Corbula 22, 23 ? Sphsmia 25. Nesera 27. 



Pl. II. Poromya 1. Pandora 2, as inaquivalvis, 3, as pinna. 

 Thracia 7, 8. Solen, 13, 15. Solecurtus 18, as Macira slrigilata. 

 Syndosmya, as Abra, 19, 22. 



Pl. III. Psamrnobia 1, 3, 4. Tellina 5, 6, 7, 9, as ovata, 15, as 

 BaUhica, 16. Scrobicularia 18, as Tngonella plana. Donax 19, as 

 vittaius. Mactra 20, 21, 22, as ovalis, 23, 25,. 26. 



Pl. IV. Lutraria 2. Tapes 7, 8. Artemis 11. Venus 12, 14, 

 15, 17. Astarte 18, 19, 20, 22, as borealis. 



Pl. V. Cyprina 1. Circe 2. Isocardia 3. Cardium 6, 8, 9, 12, 13. 

 Lucina 14, as Loripes, 15, as Cryptodon jiexiwsum, 16. Diplodonta 19. 

 Clausina 20, as Cryptodon f. 



Pl. VI. Montacuta 1, 2, 3. Kellia 5, 6. Poronia 7, as Kellia r. 

 Cyclas 16, 18. Pisidium 23, 24, 25, 26. 



Pl. VII. Unio 2, 3. Anodon 4. Modiola 6, 9, 10. Creuella 13, 

 14, 15, 16. Mytilus 18, 19, 20. 



Pl. VIII. Nucula 1, 5. Leda 6, 7. Area 9, 10, 11, as pectuncn- 

 loides. Pectunculus 13. Avicula 15. Pinna 10. Ostrea 17. Ano- 

 mia 18, 19, 20, 21. Lima 22, 23, 24. 



Pl. IX. Pecten 1, 2, 5, 8, 9, 10, 11, 12, 13, 1 1. 



