Puncturella expansa, common name the broad puncturella, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

[1] The size of the shell varies between 25 mm and 40 mm.

This species occurs in the Pacific Ocean from Baja California, Mexico to Panama; off the Galápagos Islands

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