Kingdom Animalia Linnaeus, 1758 - animals
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   Phylum Mollusca Linnaeus, 1758 - molluscs
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     Class Gastropoda Cuvier, 1795 - snails and slugs
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       Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
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         Order Archaeogastropoda Thiele, 1925 see Order Vetigastropoda Salvini-Plawen, 1980
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           Family Neritidae Rafinesque, 1815 - nerites
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             Genus Nerita Linnaeus, 1758
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             Genus Theodoxus Montfort, 1810
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