Powelliphanta rossiana, known as Ross' 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 South Island of New Zealand.

Subspecies include:[3] The eggs are oval and seldom constant in dimensions 8 × 6.75, 6.5 × 5.75, 8.25 × 6.75 mm.

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