For #FlatClamFriday with a bit of holiday spirit we have jingle shells (family Anomiidae)! Supposedly so named because they can create a jingling noise when strung together as wind chimes. These very thin bivalves live permanently cemented to hard surfaces, including other shells! One valve has a large byssal opening through which the bivalve applies the cement, basically fusing with the surface it lives on! https://islandnature.ca/2009/11/jingle-shells/ #clamFacts #JingleShellRock