Global distribution of Isognomon isognomon

The Pacific Toothed Oyster can be found widely throughout the Indo-Pacific region and northern Australia. However, through recent observations and occurrence data shown by Global Biodiversity Information Facility Network, the distribution of these crevice-dwelling pterioids is more widespread than previously thought. In addition to the previously thought distribution, Pacific Toothed Oyster can also be found around Eastern coastal areas.
(Yellow colour regions indicate distribution of Isognomon isognomon)

ea of Australia, South East Asia, Southern Japan and Eastern Africa.