Photo 1814122, (c) Alison Young, some rights reserved (CC BY-NC), uploaded by Alison Young

Attribution © Alison Young some rights reserved Uploaded by kestrel Source iNaturalist Associated observations Photos / Sounds 2 photos What California Barnacle (Megabalanus californicus) Observer kestrel Date May 7, 2015 06:39 AM PDT Place San Mateo, California, United States (Google, OSM) Date Added May 7, 2015 12:50 PM PDT 2 IDs Research Grade View Sizes small medium large original