| 21. | "' Pyramidulidae "'is a terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
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| 22. | "' Strobilopsidae "'is a terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
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| 23. | "' Diapheridae "'is a terrestrial pulmonate gastropod mollusks in the superfamily Streptaxoidea.
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| 24. | Simple annual ( protandric, despite being one of the more specialised of higher limnic pulmonate snails.
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| 25. | Only one other large pulmonate, " Succinea ", has been found as a fossil.
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| 26. | "' Bradybaenidae "'is a taxonomic terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.
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| 27. | "' Hygromiidae "'is a taxonomic terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.
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| 28. | "' Valloniidae "'is a taxonomic terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
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| 29. | "' Amastridae "'is a taxonomic terrestrial pulmonate gastropod mollusks in the superfamily Cochlicopoidea.
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| 30. | "' Haplotrematidae "'is a taxonomic terrestrial pulmonate gastropod mollusks in the superfamily Rhytidoidea.
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