Mya truncata, common name the blunt gaper or truncate softshell, is a species of edible saltwater clam, a marine bivalve mollusk in the family Myidae.

It is whitish, while the outermost layer of the valves (periostracum) may be yellowish, light olive or dark brown.

[1][3] Reproduction is sexual, the gametes of both sexes being expelled into the water, then the free larvae attach themselves to rocks.

These clams filter the sea water in order to feed on bacteria, diatoms and larvae of invertebrates.

[1][2][4] Mya truncata lives from the lower shore up to depths of 70 m, burrowed in sand or sandy mud.