clade Hypsogastropoda Phreatodrobia is a genus of very small or minute freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Lithoglyphidae.
[3] The generic name Phreatodrobia is derived from the Greek word "phreatos" which means ground water, as in phreatic,[1] and from the suffix -drobia based on family name Hydrobiidae (where it was originally classified), which means "living in water".
Species within the genus Phreatodrobia include:
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