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| pearl oyster | |||
| mother-of-pearl shell (Pinctada martensii, Pinctada maxima, pinctada margaritifera) | |||
| pearl mussel (Margaritana margaritifera); river pearl mussel (Margaritana margaritifera) | |||
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Perlmuschel : 1 a las frases, 1 temas |
| Ciencias naturales | 1 |