What's been spotted in Tasmania?

Anadara trapezia (Mud ark-shell)

The sighting

Spotted by	Eleanor Loughhead
Region	Tasmania
Sighted on	10 Aug 2025

This sighting has been reviewed and verified. The species is not currently extant in Tasmanian waters but the shells are so solidly built that they last a long, long time in the sea, and subfossils (dating from some warmer period in the past) regularly wash up.

Simon Grove

Why is this sighting important?

Other

What's been spotted in Tasmania?

Anadara trapezia (Mud ark-shell)

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