Photo 63985510, (c) Rebecca Johnson, some rights reserved (CC BY), uploaded by Rebecca Johnson

Attribution © Rebecca Johnson some rights reserved Uploaded by rebeccafay Source iNaturalist Associated observations Photos / Sounds What Rough Keyhole Limpet (Diodora aspera) Observer rebeccafay Date March 18, 2020 03:03 PM PDT Place Half Moon Bay, CA, US (Google, OSM) Date Added March 19, 2020 10:17 PM PDT 2 IDs Research Grade View Sizes small medium large original