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