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Lake Pepin mucket, Lampsilis luteola (Lamarck), upper; Yellow sand-shell, Lampsilis anodontoides (Lea), middle; Pocketbook, Lampsilis ventricosa (Barnes), lower.
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Lape Pepin mucket, Lampsilis luteola (Lamarck), male, upper left; Lake Pepin mucket, Lampsilis luteola (Lamarck), female, upper right; Butterfly, Plagiola securis (Lea), lower left); Pocketbook, Lampsilis ventricosa (Barnes), lower right. 1921. Lampsilis;
cc-publicdomain
Lape Pepin mucket, Lampsilis luteola (Lamarck), male, upper left; Lake Pepin mucket, Lampsilis luteola (Lamarck), female, upper right; Butterfly, Plagiola securis (Lea), lower left); Pocketbook, Lampsilis ventricosa (Barnes), lower right.
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Rear view of Anodonta corpulenta showing siphonal openings. Note the very smooth margins of the upper exhalent opening and the fimbriae or feelers protecting the lower or inhalent opening.
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Modiola nigra.
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Mytilus californianus, the Large Sea Mussel (Upper); Mytilus edulis, the Smaller Sea Mussel (Lower).
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Solen ambiguns (Lamarck).
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Mytilus hamatus.
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Mytilus edulis, attached by its byssus (By) to a piece of wood: F, food; S, exeurrent siphon, the branchial siphon being below it and not closed.
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Grandma, Lampsilis ovata (Say), from Cumberland River, upper; Pocketbook, Lampsilis capax (Green), from Mississippi River, lower.
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Venus mercenaria.
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