Photo 62216, (c) Chris Cook, some rights reserved (CC BY-NC), uploaded by Chris Cook

Attribution © Chris Cook some rights reserved Uploaded by greenrosettas Source iNaturalist Associated observations Photos / Sounds What Pacific Acorn Barnacle (Balanus glandula) Observer greenrosettas Date October 23, 2011 Place Hayward Shoreline Interpretive Center (H.A.R.D), CA (Google, OSM) Date Added October 24, 2011 09:09 AM PDT Description Are these acorn barnacles? Tags barnacles, barnacle 2 comments 2 IDs Research Grade View Sizes small medium large original