The Golden Bay Museum in Tākaka has one of the country’s largest collections of Powelliphanta shells. The stronghold of these carnivorous land snails is in north-west Nelson and on the northern West Coast, where most of the species are found. The largest species is Powelliphanta superba prouseorum (middle), which measures about 90 mm across and is found in Kahurangi National Park. Collecting Powelliphanta shells has been illegal since 1982.
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