Bivalves of North America

species of mollusc

species of mollusc

species of mollusc

The elktoe (Alasmidonta marginata) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is found in southeastern Canada and the eastern United States. Like many mussels, it is threatened by water pollution from agriculture, industry, and other development, such as acid mine drainage and sedimentation. It may be extinct in Oklahoma.

species of mollusc

The Fanshell (Cyprogenia stegaria) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Historically widespread throughout the Ohio, Cumberland, and Tennessee river systems, this species, native to the United States, now occurs in only a few isolated populations and faces a severe threat to its continued existence. It is federally listed as an Endangered species under the U.S. Endangered Species Act (ESA) due to a dramatic and ongoing decline in its populations and a significant contraction of its historical range. The International Union fo

Pholadomya is a genus of saltwater clams, marine bivalve molluscs in the family Pholadomyidae.

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of bivalves

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc