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Acanthocardia aculeata (Linnaeus, 1758)
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Acanthocardia echinata (Linnaeus, 1758)
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Acanthocardia tuberculata (Linnaeus, 1758)
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Acanthochitona crinita (Pennant, 1777)
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Acanthochitona discrepans (Brown, 1827)
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Acanthochitona sp. Gray, 1821
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Acanthodactylus erythrurus (Schinz, 1833)
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Acanthoscina acanthodes (Stebbing, 1895)
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Acanthosoma haemorrhoidale (Linnaeus, 1758)
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Acanthosoma haemorrhoidale (Linnaeus, 1758) subsp. haemorrhoidale (Linnaeus, 1758)
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Acanthostomella gracilis Brandt, 1896
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Acarospora fuscata (Nyl.) Arnold
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Acarospora hilaris (Dufour) Arnold
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Acarospora smaragdula (Wahlenb.) A. Massal.