Photo 3178640, (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 What Channeled Topsnail (Calliostoma canaliculatum) Observer kestrel Date March 17, 2016 02:54 PM PDT Place San Mateo, California, United States (Google, OSM) Date Added March 18, 2016 02:09 PM PDT 2 IDs Research Grade View Sizes small medium large original