They are marine gastropod molluscs in the family Trochidae, the top snails or top shells, and are only known to occur in New Zealand.
This genus is only known to occur in New Zealand. They are marine gastropod molluscs in the family Trochidae, the top snails or top shells.
They are marine gastropod molluscs in the family Trochidae, the top snails or top shells. This genus is only known to occur in New Zealand.
They are marine gastropod molluscs in the family Trochidae, the top snails or top shells. This genus is only known to occur in New Zealand.