Photo 118553600, (c) pierrelfr, some rights reserved (CC BY-NC), uploaded by pierrelfr

Attribution © pierrelfr some rights reserved Uploaded by pierrelfr Source iNaturalist Canada Associated observations Photos / Sounds 5 photos What Testudinella patina Observer pierrelfr Date April 1, 2021 10:07 AM EDT Place TTP Cell 1 North end, Toronto, ON, Canada (Google, OSM) Date Added April 2, 2021 10:10 AM EDT Description Collected on March 30, 2021. Last picture is a gif showing the thickness of the disc. 4 IDs Research Grade View Sizes small medium large original