526 Transactions. — Geology. 



7. Ancilla lata, Hutton. 



8. Ancilla hebcra, Hutton. 



9. Natica gibbosa, Hutton. 



10. Natica darwini, Hutton. 



11. Cirsotrema browni, Zittel. 



12. Struthiolaria papulosa, Martyn. 



13. Calyptrcea monoxyla, Martyn. 



14. Cassidaria sulcata, Hutton. 



15. Cassidaria senex, Hutton. 



16. Turritella caver shamensis . Harris. 



17. Turritella rosea, Quoy and Gaimard. 



18. Teredo heaphyi, Zittel. 



19. Dentalium giganteum, Hutton. 



20. Dentalium mantelli, Zittel. 



21. Dentalium Icevis, Hutton. 



22. Ostrca angasi (?), Sowerby. 



23. Anomia alectus, Gray. 

 2-4. Lima paleata, Hutton. 



25. Pecten williamsoni, Zittel. 



26. Pecten scandula, Hutton. 



27. Pseiidamussium huttoni, Park. 



28. Gucullaa alta, Sowerby. 



29. Glycimeris striatularis, Lamarck. 



30. Limopsis insolita, Sowerby. 



31. Limopsis aurita, Brocchi. 



32. Cucularia australis, Hutton. 



33. Panopata orbita, Hutton. 



34. Corbula caniculaia, Hutton. 



35. Psammobia Unco lata, Grav. 



36. Pinna zelandica, Gray. 



37. Mactropsis traili, Hutton. 



38. Tellina angulata, Hutton. 



39. Zenatia acinaces, Quoy and Gaimard. 



40. Nucula nitidula, Adams. 



41 . Magellania novara, Jhering. 



42. Magellania triangularis, Hutton. 



43. Trochocyatkus mantelli, M. Edw. and H. 



44. Flabellum radians, Tenison-Woods. 



The fossils in this horizon are very numerous, generally 

 well preserved and easily extracted. The most common 

 species are Limopsis insolita, Venericardia atvamoaensis , Gu- 

 cidlcea alta, Mactropsis traili, and Dentalium giganteum. 



Of the forty-one species of Mollusca in the above list, ten, 

 or nearly 24 - 4 per cent., are still living. 



Besides prominent molluscs, these sandy beds contain a 

 large number of small and minute forms, many of which are 

 probably new. 



From the dirty greensands underlying the Kckcnodon beds 



