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Modiola modiolus.
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Mytilus edula, rayed-color variety.
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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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Mytilus hamatus.
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Horse Mussel, Modiola modiolus.
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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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Two valves of Mytilus edulis L., representing diagramatically, the approximate position of the holes bored by Purpura in about 100 specimens of Mytilus gathered at Newquay, Cornwall.
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Mytilus edulis L., attached by its byssus (By) to a piece of wood; F, foot; S, anal siphon, the branchial sipohon being below it and not closed.
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Sea-mussel (Mytilus edulis Linnaeus).
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Mytilus edulis, Edible mussel.
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Mytilus edulis.
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Sea mussel Mytilus edulis Linnaeus, showing foot distended and attachment by byssus.
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Mytilus edulus (Linnaeus).
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Modiola plicatula, typical form.
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Bed of sea-mussels 1 year old.
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