This is a yet-unnamed Powelliphanta species, provisionally known as Powelliphanta "Matakitaki". This is one of the amber snails. It is an undescribed species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.
Powelliphanta "Matakitaki" is classified by the New Zealand Threat Classification System as Range Restricted.