Dreissena
Synonyms
Dreissena polymorpha
Dreissena polymorphas
Dreissenas
Mussel, Zebra
Mussels, Zebra
Zebra Mussel
Zebra Mussels
polymorphas, Dreissena
A genus of mussels in the family Dreissenidae, class BIVALVIA. They are found in both fresh and brackish water and are not native to North America. Accidentally introduced into the Great Lakes in 1986, they now proliferate widely throughout the United States.