Powelliphanta traversi, known as Travers' land snail,[1] is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

This species is endemic to the North Island of New Zealand between Wellington and Lake Waikaremoana.

There are six subspecies,[2] all of which are listed by the New Zealand Department of Conservation as threatened:[3]

The eggs are oval and seldom constant in dimensions 10 × 8.75 mm, 9.5 × 8.5 mm, 10 × 8 mm, 11 × 9 mm, 10.75 × 9 mm.

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