Powelliphanta lignaria
Powelliphanta lignaria, known as one of the amber snails, is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. The eggs of "P. lignaria" are oval and seldom constant in dimensions 10 × 8.25, 9 × 7.75, 9 × 8, 8.75 × 7.75 mm. "P. lignaria" is endemic to the west coast of the South Island of New Zealand. There are seven subspecies, all of which are listed by the New Zealand Department of Conservation as threatened: References.