518 Transactions. — Geology. 



yellowish-grey building-stone. The lower is glauconitic, and 

 largelv composed of comminuted corals and Foraminifera. 



The tuffs are often pebbly, and generally crowded with 

 corals and molluscs. Of the latter I collected the following 

 forms : — 



1. Ostrea wullerstorfi, Zittel. 



2. Pectcn hutchinsoni, Hutton. 



3. Pecten hochstetteri, Zittel. 



4. Pecten burnetti, Zittel. 



5. Pecten ivilliamsoni, Zittel. 



6. Pseudamussium huttoni, Park. 



7. Amussium zitteli, Hutton. 



8. Terebratclla gaulteri, Morris. 



Devil's Bkidge. 

 This place is situated near the source of the Oamaru 

 Stream. Here the Waitaki Stone overlies glauconitic sand- 

 stones containing fossils in great abundance, and generally 

 well preserved. In the collection from the sandstone the 

 following were identified : — 



1. Calyptrcea calyptrceformis, Lamarck. 



2. Teredo heaphyi, Zittel. 



3. Dentalium mantelli, Zittel. 



4. Dosinia greyi, Zittel. 



5. Chione vellicata, Hutton. 



6. Chione crassa, Quoy and Gaimard. 



7. Meretrix acuminata, Hutton. 



8. Venericardia aivamoaensis, Harris. 



9. Lima paleata, Hutton. 



10. Pecten ivilliamsoni, Zittel. 



11. Pseudamussium huttoni, Park. 



12. Ostrea augasi (?), Sowerby. 



13. Limopsis aurita, Brocchi. 



14. Gucxdlaa alta, G. B. Sowerby. 



PUKEUKI. 



Tbis place lies north of Oamaru, from which it is distant 

 about six miles by rail. The bills facing tbe railway-line, 

 near Pukeuri, are' composed of soft sandstones, which are 

 fossiliferous, and often contain large calcareous nodules. 

 From these beds I collected the following forms in the deep 

 cutting on the main cart-road into the Waitaki Valley :— 



1. ScapJiella corruyata, Hutton. 



2. Scaphella pacifica, Lamarck. 



3. Siphonalia nodosa, Martyn. 



4. Pleurotoma fusiformis, Hutton. 



5. Terebra tristis, Hinds. 



