This is a yet-unnamed Powelliphanta species, provisionally referred to as Powelliphanta "Matakitaki". It is one of the amber snails — an undescribed species of large, carnivorous land snail. This terrestrial pulmonate gastropod mollusc belongs to the family Rhytididae.
Conservation status Powelliphanta "Matakitaki" is classified by the New Zealand Threat Classification System as Range restricted.
References
Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 Department of Conservation Recovery Plans New Zealand Department of Conservation Threatened Species Classification