MOLLUSCS
Arion
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Arion subfuscus/fuscus
dusky slug
Introduced
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Cepaea
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Cepaea nemoralis
striped garden snail, grove snail
Introduced
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Euspira
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Euspira heros
northern moon snail
Native
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Littorina
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Littorina littorea
common European periwinkle or winkle
Introduced
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|
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Littorina saxatilis
rough periwinkle
Native
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Megapallifera
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Megapallifera mutabilis
changeable mantleslug
Native
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Mytilus
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Mytilus edulis
common blue mussel
Native
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Philomycus
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Philomycus flexuolaris
winding mantleslug
Native
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Saxidomus
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Saxidomus giganteus
butter clam
Native
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