Shells of South
East Queensland

Myora Reef,  Australia
Size: 19.2mm    Collected: 2004
On reef flats at low tide.

Olasana Island,  Solomon Islands
Size: 23.1mm    Collected: 2016
found dead in sand and weed in 1m of water.

Flying Fish Cove,  Christmas Islands
Size: 20mm    Collected: Unknown
alive in coral rubble and sand 10-15m

Bali,  Indonesia
Size: 20mm    Collected: Unknown
on steep black sand slope 3-40m