Pyrgula annulata
Pyrgula annulata is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Pyrgula annulata is the type species of the genus Pyrgula.
Pyrgula annulata is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Pyrgula annulata is the type species of the genus Pyrgula.