Maximum shell length 9 cm, commonly to 7.5 cm. On sandy to muddy bottoms, generally in larger islands only. May occur in large colonies at some localities. Mainly sublittoral, from low tide limit to a depth of about 30 m.Occasionally collected for food and for its shell where common.Tropical West Pacific, from western Indonesia to Melanesia; north to southern Japan and south to northern Queensland and New Caledonia.