On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

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The native pea clam (Sphaeriidae) are while/cream, more circular than gold clams and have no ridges on their shell. They are very small (generally less than 6 mm).
NIWA

The native pea clam (Sphaeriidae) are while/cream, more circular than gold clams and have no ridges on their shell. They are very small (generally less than 6 mm).