References the inner shell of the local salt water sea-urchin called kina in M?ori which is often found washed ashore on New Zealand beaches. Kina references the inner shell of the local salt water sea-urchin called kina in M?ori. David saw a kina shell in Antarctica – an exquisite jewel sunk in a tiny hollow in the sea ice. The shell had absorbed enough warmth from the sun to melt the ice around it.