Duck Mussel, Anodonta anatina
The Duck Mussel, Anodonta anatine, is a species of freshwater mussel, an aquatic bivalve mollusk belonging to the family Unionidae, the river mussels.
The native distribution of this mussel is European-Siberian. The distribution range is Croatia, Germany, Czech Republic, Isle of Man, Netherlands, Ireland, Russia, Sweden and Slovakia.
Image Caption: Duck mussel Anodonta anatina. Credit: Joel Berglund/Wikipedia