Powelliphanta traversi


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, 1946Nationally Endangered
  • Powelliphanta traversi latizona Powell, 1949Nationally Endangered
  • Powelliphanta traversi koputaroa Powell, 1946 – Nationally Endangered
  • Powelliphanta traversi otakia Powell, 1946 – Nationally Critical
  • Powelliphanta traversi tararuaensis Powell, 1938Nationally Endangered
  • Powelliphanta traversi traversi Powell, 1930Nationally 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.

Description

Powelliphanta traversi are smaller than other species of the same genus.