Giant Keyhole Limpet

Megathura crenulata

Giant Keyhole Limpet

A large limpet whose flesh swells out beyond its shell, leaving a keyhole slit at the top through which water and waste pass. It grips rocky surfaces from the intertidal down to about 33 metres, grazing algae as it goes.

Taxonomy: Animalia › Mollusca › Gastropoda › Lepetellida › Fissurellidae › Megathura

Species data via the World Register of Marine Species (WoRMS), AphiaID 527885.

FAQ

How deep does the Giant Keyhole Limpet live?
The Giant Keyhole Limpet (Megathura crenulata) is typically found at 0–33 m.
How big does the Giant Keyhole Limpet get?
The Giant Keyhole Limpet grows to about 12.5 cm.