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species
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Animalia
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Mollusca
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Gastropoda
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Lophospiridae
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Arjamannia
Donaldiella
Ectomaria
Eunema
Frodospira
Longstaffia
Lophospira
Loxoplocus
Manzanospira
Paupospira
Proturritella
Ruedemannia
Solenospira
Tunstallia
Worthenia
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Arjamannia