Powelliphanta spedeni

Powelliphanta spedeni, known as one of the amber snails, is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

Distribution
This species is endemic to the South Island of New Zealand. There are two subspecies:


 * Powelliphanta spedeni spedeni Powell, 1932
 * Powelliphanta spedeni lateumbilicata Powell, 1946

Description
The shell of Powelliphanta spedeni reaches a maximum size of 40 mm.

Life cycle
Powelliphanta spedeni produces an egg up to the size of 11.5 mm. Shape of the eggs is oval and seldom constant in dimensions 11.5 × 9 mm, 11 × 9 mm, 9 × 7.75 mm. Its eggs are laid in March.