Powelliphanta traversi

Updated on Apr 25, 2026

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Kingdom Animalia Family Rhytididae Scientific name Powelliphanta traversi Rank Species		Phylum Mollusca Genus Powelliphanta Higher classification Powelliphanta

Lower classifications Powelliphanta traversi tararuaensis

Powelliphanta traversi, known as Travers' land snail, 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, all of which are listed by the New Zealand Department of Conservation as threatened:

Powelliphanta traversi florida Powell, 1946 – Nationally Endangered

Powelliphanta traversi latizona Powell, 1949 – Nationally Endangered

Powelliphanta traversi koputaroa Powell, 1946 – Nationally Endangered

Powelliphanta traversi otakia Powell, 1946 – Nationally Critical

Powelliphanta traversi tararuaensis Powell, 1938 – Nationally Endangered

Powelliphanta traversi traversi Powell, 1930 – Nationally Endangered

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.

References

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