Mactra concentrica, Print, Mactra is a genus of medium-sized marine bivalve mollusks or clams, commonly known as trough shells or duck clams. Mactra is the type genus within the family Mactridae

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Mactra concentrica, Print, Mactra is a genus of medium-sized marine bivalve mollusks or clams, commonly known as trough shells or duck clams. Mactra is the type genus within the family Mactridae.

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Photo credit: © Artokoloro / Alamy / Afripics
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Keywords: bivalve, clams, concentrica, duck, family, genus, mactra, mactridae, marine, medium-sized, mollusks, print, shells, trough, type