The fossil springsnail, scientific name Pyrgulopsis simplex, is a species of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. This species is endemic to the United States.
The fossil springsnail, scientific name Pyrgulopsis simplex, is a species of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. This species is endemic to the United States.
