This is a yet-unnamed Powelliphanta species, provisionally known as Powelliphanta "Nelson Lakes". 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. The area above the bush line on Mount Murchison in the Braeburn Range is one of three isolated habitats for this species.
Powelliphanta "Nelson Lakes" is classified as Range Restricted by the New Zealand Threat Classification System.