The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply...

largest species of freshwater bivalves is the swan mussel from the family Unionidae; it can grow to a length of 20 cm (7.9 in), and usually lives in lakes...

freshwater bivalves include seven families, the largest of which are the Unionidae, with about 700 species. The taxonomic term Bivalvia was first used by...

species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This is a rare species found solely in North America's...

fauna, with about 90 species in the primary family of native mussels (Unionidae). Several of these species were extirpated during the construction of...

medium-sized freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. They are found throughout Europe, Africa, and the...

all) species of freshwater mussels in the order Unionida, the families Unionidae and Margaritiferidae. The unique luster of pearls depends upon the reflection...

oysters of family Ostreidae or the freshwater pearl mussels of the families Unionidae and Margaritiferidae. Pinctada margaritifera and P. maxima are used for...

mussel (Anodonta anatina) is a species of freshwater mussel in the family Unionidae, the river mussels. See Animalbase below (external link). Right and left...

This is a list of North American animals extinct in the Holocene that covers extinctions from the Holocene epoch, a geologic epoch that began about 11...