Shaw's Cove, Laguna Beach, Orange Co., California, March 7, 2003

The file limpet (Lottia limatula) can be identified by its black tentacles and side of foot, or by the file-like imbrications on the radiating riblets on the its shell (felt by running a fingernail from the shell margin to the apex). It is one of the most common limpets in southern California.

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Image by D.J. Eernisse © 2003