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Gwylan: Echinocardium cordatum (test). Gwelchyn; Taten Fôr. Heart Urchin; Sea Potato.
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Gwylan: Draenog porffor - Paracentrotus lividus
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Gwylan: Draenog gwyrdd - Psammechinus miliaris
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Gwylan: Marthasterias glacialis. Seren Bigog. Spiny Starfish.
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Gwylan: Asterias rubens - seren fôr
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Gwylan: Asterina gibbosa. Serennig. Cushion Star.
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Gwylan: Asterina gibbosa. Serennig. Cushion Star. Starlet.
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Gwylan: Asterina gibbosa. Serennig. Cushion Star.
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Gwylan: Taten for, Morfa Bychan
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Gwylan: Seren for - Asterias rubens
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Gwylan: serennig - Asterina gibbosa - cushion star
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Gwylan: Seren frau - Ophiothrix fragilis, Caernarfon
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Gwylan: Asterina gibbosa. Serennig. Cushion Star.
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Gwylan: seren frau yn yr acwariwm
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Gwylan: Astropecten irregularis. Seren y Tywod. Sand Star.
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Gwylan: seren y tywod - Astropecten irregularis
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Gwylan: Gwelchyn Echinocardium cordatum
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Gwylan: Draenog porffor - Paracentrotus lividus
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Gwylan: Draenog porffor - Paracentrotus lividus
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Gwylan: Draenog porffor - Paracentrotus lividus
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Gwylan: Draenog porffor - Paracentrotus lividus
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Gwylan: Marthasterias glacialis - seren bigog, spiny starfish
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Gwylan: Marthasterias glacialis - seren bigog, spiny starfish
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Gwylan: Marthasterias glacialis - seren bigog, spiny starfish
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Gwylan: Marthasterias glacialis - seren bigog, spiny starfish
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Gwylan: Marthasterias glacialis - seren bigog, spiny starfish
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Gwylan: Astropecten irregularis. Seren y Tywod. Sand Star.
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Gwylan: Gwelchyn Echinocardium cordatum heart urchin
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Gwylan: Gwelchyn Echinocardium cordatum heart urchin
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Gwylan: Thyone fusus