Photo 1120057, (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal

Attribution © Robin Gwen Agarwal some rights reserved Uploaded by anudibranchmom Source iNaturalist Associated observations Photos / Sounds 2 photos What Eastern Mudsnail (Ilyanassa obsoleta) Observer anudibranchmom Date September 17, 2014 10:51 AM PDT Place San Mateo, California, United States (Google, OSM) Date Added September 17, 2014 03:11 PM PDT Description About 1/2", dozens dry on top of dock. 2 comments 3 IDs Research Grade View Sizes small medium large original