Gari stangeri, or the purple sunset shell, is a bivalve mollusc of the family Psammobiidae. References Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 Glen Pownall, New Zealand Shells and Shellfish, Seven Seas Publishing Pty Ltd, Wellington, New Zealand 1979 Psammobiidae Bivalves of New Zealand Bivalves described in 1843