This fine shellfish grows up to 3 in. in height and is easily recognised by its massive white lip and radiate pattern of reddish-brown bands. It is representative of a family which has developed in New Zealand from Cretaceous times and apparently arrived here, via Antarctica, from South America. Related living species are now found only in Southern Australia, Kerguelen Island, and South Georgia. Our species lives half buried in sand at low tide on coastal beaches.
by Arthur William Baden Powell, Assistant Director, Auckland Institute and Museum.