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bivalves and clams Bivalvia
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mammoth lymnaea Bulimnaea megasoma
swamp lymnaea Lymnaea stagnalis
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knobbed whelk Busycon carica
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knobbed whelk Busycon carica
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Busycon contrarium
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Busycon contrarium
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Busycon contrarium
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ponderous campeloma Campeloma crassulum
pointed campeloma Campeloma decisum
sharp hornsnail Pleurocera acuta
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octopuses and squids Cephalopoda
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octopuses and squids Cephalopoda
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Cipangopaludina
banded mysterysnail Viviparus georgianus
European stream valvata Valvata piscinalis
big-eared radix Radix auricularia
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Cryptoplax
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purple wartyback Cyclonaias tuberculata
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variable coquina Donax variabilis
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eastern elliptio Elliptio complanata
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