New Zealand Cenozoic molluscs described by Zittel in 'Paläontologie von Neu-Seeland' (1865) are revised, the plates republished, and most type specimens reillustrated, along with comparative specimens. Hochstetter's fossil localities are clarified, based on diary entries and published descriptions, and Zittel's introduction and figure captions are translated. The locality 'several miles north of Raglan Harbour' is Te Hara Point, 6.5 km north of Raglan.