quagga mussel

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Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

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quagga mussel

mollusk

Also known as: Dreissena rostriformis bugensis

Learn about this topic in these articles:

zebra mussels

In zebra mussel
The quagga mussel (D. rostriformis burgensis), a similar species in both form and habit, was first discovered in the Great Lakes in 1989.
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