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| Subject | Dutch | English |
| life.sc., fish.farm. | eetbare zee-egel | European edible sea urchin (Echinus esculentus) |
| life.sc., fish.farm. | zee-egel | stony sea urchin (Paracentrotus lividus, Strongylocentrotus lividus) |
| fish.farm. | zee-egel | sea urchin (Echinus spp.) |
| nat.res. | zee-egel | purple sea urchin (Paracentrotus lividus(Lamarck,1816), Strongylocentrotus lividus) |
| nat.sc., agric. | zee-egel | sea urchins (Echinus spp) |
| nat.sc., agric. | zee-egels | sea urchins (Echinidae) |