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Gwylan: Pilumnus hirtellus - cranc blewog
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Gwylan: Pilumnus hirtellus - cranc blewog
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Gwylan: Portumnus latipes - cranc nofiol Pennant
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Gwylan: Carcinus maenas - cranc gwyrdd
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Gwylan: Carcinus maenas - cranc gwyrdd
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Gwylan: Carcinus maenas - cranc gwyrdd
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Gwylan: Carcinus maenas - cranc gwyrdd
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Gwylan: Necora puber - cranc llygatgoch
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Gwylan: Liocarcinus depurator - cranc nofiol
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Gwylan: Cancer pagurus - cranc coch
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Gwylan: Corystes cassivelaunus. Cranc Caswallon, Cranc Melyn. The Masked Crab.
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Gwylan: Inachus dorsettensis, Cranc Heglog Sbyngaidd. Scorpion Spider Crab.
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Gwylan: Porcellana platycheles. Cranc Porslen Blewog. Broad Clawed Porcelain Crab.
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Gwylan: Pisidia longicornis - cranc porslen
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Gwylan: cranc porslen hirfawd - Pisidia longicornis
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Gwylan: cranc porslen hirfawd - Pisidia longicornis
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Gwylan: Galathea squamifera. Cimwch Byrdew. Squat Lobster.
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Gwylan: Palaemon serratus. Corgimwch. Prawn.
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Gwylan: Ligia oceanica. Gwrachen y Traeth. Sea Slater.
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Gwylan: Sacculina carcini. Crachen Cranc. Sac Barnacle.
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Gwylan: Sacculina carcini anghywir false
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Gwylan: Sacculina carcini. Crachen Cranc. Sac Barnacle.
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Gwylan: Perforatus perforatus (Balanus perforatus)
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Gwylan: Lepas anatifera - gwyrain
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Gwylan: Lepas anatifera - gwyrain
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Gwylan: Lepas anatifera - gwyrain
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Gwylan: Gwyrain - Lepas anatifera, Criccieth
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Gwylan: Lepas anatifera - gwyrain
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Gwylan: Nymphon gracile
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Gwylan: Copyn y traeth - Nymphon gracile (seaspider)