Fissurella costata, common name : the costate keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

[1] The size of an adult shell varies between 25 mm and 90 mm.

This species is present in the southeastern coast of Pacific Ocean off Peru and Chile.

They live on the rocky intertidal substrate.

This Fissurellidae-related article is a stub.