zoetwater weekdieren - fresh water mollusca
zoetwaterslakken - fresh water snails
ampullariidae
bithyniidae
lymnaeidae
physidae
planorbidae
sphaeriidae
succineidae
valvatidae
viviparidae
zoetwaterschelpen - fresh water mussels
corbiculidae
dreissenidae
unionidae
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Appelslak
Ampularia gigas
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