Category
page 1Quadrula
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Quadrula
Quadrula is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae native to rivers of the American Midwest and mid-south. All have thick nacreous shells with well-developed hinge teeth, many also with external shell sculpturing of nodules or lumps.
Winged mapleleaf
species of mollusc
Quadrula rumphiana
species of mollusc
Quadrula quadrula
species of mollusc
Southern mapleleaf
species of mollusc