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. See also List of non-marine molluscs of New Zealand References Powelliphanta Gastropods of New Zealand Gastropods described in 1930 Taxobox binomials not recognized by IUCN Taxa named by Arthur William Baden Powell Endemic fauna of New Zealand Endemic molluscs of New Zealand