Photo 1329083, (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal

Attribution © Robin Gwen Agarwal some rights reserved Uploaded by anudibranchmom Source iNaturalist Associated observations Photos / Sounds 4 photos What Giant Keyhole Limpet (Megathura crenulata) Observer anudibranchmom Date November 6, 2014 03:39 PM PST Place San Diego, California, United States (Google, OSM) Date Added November 7, 2014 10:06 AM PST Description About 6" long. 2 comments 4 IDs Research Grade View Associated taxa CC Keyhole Limpets (Family Fissurellidae) Info Photo (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal Sizes small medium large original