Wainuia edwardi is a rare terrestrial gastropod mollusc in the family Rhytididae, endemic to the South Island of New Zealand.
Distribution This species occurs in New ZealandPowell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979
Feeding habits Wainuia edwardi feeds mainly on earthworms.Efford M. G. 2000. Consumption of amphipods by the New Zealand landsnail Wainuia urnula (Pulmonata: Rhytididae). Journal of Molluscan Studies 66: 45–52. abstract
Life cycle Dimensions of eggs of Wainuia edwardi (?) are 5 × 3.75 mm.O'Connor A. C. (June) 1945. Notes on the Eggs of New Zealand Paryphantidae, With Description of a New Subgenus. Transactions of the Royal Society of New Zealand, volume 5, 1945-46, pages 54-57.
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