Photo 11444593, (c) Peter Vahlberg, some rights reserved (CC BY-NC), uploaded by Peter Vahlberg

Attribution © Peter Vahlberg some rights reserved Uploaded by pdvmushroom Source iNaturalist Associated observations Photos / Sounds What Rough Keyhole Limpet (Diodora aspera) Observer pdvmushroom Date October 26, 2017 10:38 AM PDT Place Bean Hollow State Beach, San Mateo County, US-CA, US (Google, OSM) Date Added October 26, 2017 11:42 AM HST Description Unsure of ID 1 comment 6 IDs Research Grade View Sizes small medium large original