ecofactbook
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species
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Animalia
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Mollusca
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Bivalvia
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Unionida
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Unionidae
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Unio
Unio marcens
kingdom: Animalia
phylum: Mollusca
class: Bivalvia
order: Unionida
family: Unionidae
genus: Unio
species: Unio marcens
Where does Unio marcens live?
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