Pyrgophorus
Introduction '''''Pyrgophorus''''' is a genus of very small freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae.
Species Species in the genus ''Pyrgophorus'' include:*''Pyrgophorus cisterninus'' (Küster, 1852)*''Pyrgophorus parvulus'' (Guilding, 1828)*''Pyrgophorus platyrachis'' (Thompson, 1968) - serrate crownsnail*''Pyrgophorus spinosus'' (Call & Pilsbry, 1886) - spiny crownsnail*''Pyrgophorus coronatus'' (Pfeiffer, 1840)
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