Siphonaria gigas, common name the giant false limpet, is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.

[1] The size of the shell varies between 32 mm and 84 mm.

This marine species occurs off Acapulco, Mexico, to Northern Peru; off the Galápagos Islands.

This Siphonariidae-related article is a stub.

You can help Wikipedia by expanding it.