Montfortia emarginata, common name the emarginate limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

[1][2] The adult size of the shell varies between 20 mm and 40 mm.

This species occurs in the following locations:[1] This Fissurellidae-related article is a stub.

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