Non-marine molluscs of New Zealand include gastropods, such as land snails, and freshwater molluscs (or shellfish), such as freshwater mussels. Among the best known are the large native forest snails such as the "Paryphanta" (kauri snails) and "Powelliphanta".
Systematic list.
Freshwater gastropods.
Tateidae
Latiidae - only one genus Latia is endemic to the North Island
Lymnaeidae
Planorbidae
Land gastropods.
Hydrocenidae
Orthalicidae
Pupinidae
Punctidae
Rhytididae
Charopidae
Helicidae
Bivalvia.
Hyriidae
References.
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