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• n  marine limpet having a conical shell with an opening at the apex

• Fissurella apertura
• Diodora apertura

News & Articles

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• Laguna Shore Scene: Eyeballing a Whale’s Eye
  By Mia Davidson and Jan Sattler The giant keyhole limpet shell (Megathura crenulata) was used as wampum by Laguna’s original residents. They found the five inch buff to white domed oval shells with an opening at the apex (a keyhole) in the water and washed up on beaches. The limpets, sometimes known as whale’s [...] The post Laguna Shore Scene: Eyeballing a Whale’s Eye appeared first on Laguna ...
  July 18, 2013 - The Laguna Beach Independent