Duck Mussel (Anodonta (Anodonta) anatina)

Duck Mussel (Anodonta (Anodonta) anatina)

Observation - Duck Mussel (Anodonta (Anodonta) anatina) . Description: Open and broken shell found on path beside the River Nadder, a chalkstream. Water approx 1m deep over mostly gravel and silt bed. Mallard and swans on that stretch. Never seen a FW muscle longer than 5mm....possibly someone's discarded seafood lunch?

Open and broken shell found on path beside the River Nadder, a "chalkstream". Water approx 1m deep over mostly gravel and silt bed. Mallard and swans on that stretch. Never seen a FW muscle longer than 5mm....possibly someone's discarded seafood lunch?