Photo 679644, (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda

Attribution © Ken-ichi Ueda some rights reserved Uploaded by kueda Source iNaturalist Associated observations Photos / Sounds What Mediterranean Mussel (Mytilus galloprovincialis) Observer kueda Date February 17, 2014 11:25 AM PST Place Lakeside Park, Oakland, CA, US (Google, OSM) Date Added February 17, 2014 03:07 PM PST Description Straight edge, though impossible to be 100% sure externally 3 IDs Research Grade View Sizes small medium large original