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stony sea urchin (Paracentrotus lividus(Lamarck,1816), Strongylocentrotus lividus) | |||
purple sea urchin (Paracentrotus lividus, Strongylocentrus lividus); stony sea-urchin (Paracentrotus lividus, Strongylocentrus lividus) | |||
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violet sea urchin |
Oursin violet: 3 phrases in 2 subjects |
Ichthyology | 2 |
Natural resourses and wildlife conservation | 1 |