506 Transaction*. — Geology. 



Hampden Beach Beds. 



Stratigraphy. 

 In the sea-cliffs opposite the Township of Hampden the 

 beds consist of sandy clays, in the upper part of which there 

 occur a few layers of hard calcareous masses. The strata dip 

 N.N.E., and proceeding along the beach towards Kakanui 

 the higher beds exposed in the sea-cliffs are more sandy and 

 become fossiliferous. They are seen to pass under the Waia- 

 reka tuffs, as described by Sir James Hector* and Mr. McKay. t 



Fossils. 

 A collection of fossils from these beds included the follow- 

 ing forms : — 



1. Aturia aus trails, McCoy. 



2. Siphonalia nodosa, Martyn. 



3. Aucllla australis, Sowerby. 



4. Ancilla hebera, Hutton. 



5. Scaphella pacifica, Lamarck. 



6. Scapihella corrugata, Hutton. 



7. Pleurotoma fusiformis , Hutton. 



8. Natica zelandica, Quoy and Gaimard. 



9. Natica darwini, Hutton. 



10. Struthiolaria papulosa, Martyn. 



11. Calyptrcea calyptraformis, Lamarck. 



12. Crepidula monoxyla, Lesson. 



13. Turritella hanieriensis , Harris. 



14. Lotormm spengleri, Chemnitz. 



15. Cirsotrema broioni, Zittel. 



16. Dentalium mantelli, Zittel. 



17. Chione stictclibicryi, Gray. 



18. Glycimeris globosa, Hutton. 



19. Limopsis insolita, Sowerby. 



20. Cucullaa alta, Sowerby. 



21. Pectcn hutchinsoni, Hutton. 



22. Pseudamussium huttoni, Park. 



23. Ostrea angasi, Sowerby. 



24. Trochocyathus mantelli, M. Edw. and H. 



25. Notocyathus pedicellatus, Tenison-Woods. 



26. Flabellum radians, Tenison-Woods. 



Of the twenty-four molluscs in this collection, ten, or 4L5 

 per cent., are still living. Captain Hutton, \ in his paper 

 " On the Geology of the Country between Oamaru and 

 Moeraki," gives a list of thirty-five molluscs reported from 



* Hector, Repts. of Geol. Expls., 1883-84, p. xxiv., and 1886-87, 

 p. xx. 



t McKav, Repts. of Geol. Expls., 1883-84, p. Gl., and 1886-87, p. 6. 



* Hutton, Trans. N.Z. Inst., vol. xix., 1886, pp. 246-47. 



