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Morddyn: 01 Berthella plumula. North Wales.
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Morddyn: 02 Berthella plumula. North Wales.
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Morddyn: 03 Berthella plumula. North Wales.
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Morddyn: 04 Berthella plumula. North Wales.
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Morddyn: 05 Berthella plumula. North Wales.
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Morddyn: 06 Berthella plumula. East Sussex, England.
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Morddyn: 07 Berthella plumula. North Wales.
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Morddyn: 08 Berthella plumula. North Wales.
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Morddyn: 09 Berthella plumula. North Wales.
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Morddyn: fig. 10 Berthella plumula. North Wales.
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Morddyn: 11 Berthella plumula COMPARISON images of B. perforata from Étang de Thau, Mediterranean France. © P. Girard and S. Le Bris.
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Morddyn: 12 Berthella plumula COMPARISON images of Berthella stellata from Catalonia, © A. López-Arenas and Brittany, © M. Meunier & L. Valence.
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Morddyn: 13 Berthella plumula COMPARISON images of adult Pleurobranchus membranaceus.
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Morddyn: 14 Berthella plumula COMPARISON images of juvenile Pleurobranchus membranaceus.
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Morddyn: 15 Berthella plumula COMPARISON images of Lamellaria perspicua. North Wales.
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Morddyn: 16 Berthella plumula COMPARISON images of juvenile Trivia arctica (left, Macduff, Scotland. © C. Rickard) and T. monacha (right, North Wales).
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Morddyn: 17 Berthella plumula spawn.