The Moapa pebblesnail also known as the Muddy Valley turban snail, scientific name Pyrgulopsis avernalis, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
The Duckwater pyrg, scientific name Pyrgulopsis aloba, is a species of freshwater snail in the family Hydrobiidae. It is endemic to the United States and only known from two springs in the Duckwater Reservation, Nye County, Nevada.
The San Bernardino springsnail is an endangered species of freshwater snail in the family Hydrobiidae. This species is endemic to a small number of springs in the USA and northern Mexico.
The Bruneau hot springsnail, scientific name Pyrgulopsis bruneauensis, is a species of very small freshwater snail that has a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States, Bruneau River in Idaho. Its natural habitat is thermal springs. It is threatened by habitat loss.
The Chupadera springsnail, scientific name Pyrgulopsis chupaderae, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
The Kingman springsnail is a species of freshwater snail in the family Hydrobiidae, the mud snails. It is endemic to Mohave County, Arizona, in the United States.
The Crystal Spring springsnail, scientific name Pyrgulopsis crystalis, is a species of small freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae.
The Davis County springsnail, scientific name Pyrgulopsis davisi, is a species of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae.
The Ash Meadows pebblesnail is a species of freshwater snail with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae.
The Fairbanks springsnail, scientific name Pyrgulopsis fairbanksensis, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
The Gila springsnail, scientific name Pyrgulopsis gilae, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
The Montezuma Well springsnail is a species of freshwater snail in the family Hydrobiidae, the mud snails. It is endemic to Montezuma Well, a large sinkhole in Yavapai County, Arizona, in the United States.
The Page springsnail is a species of freshwater snail in the family Hydrobiidae, the mud snails. It is endemic to Arizona in the United States, where it is known only from the Upper Verde River drainage in Yavapai County.
Pyrgulopsis blainica, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Pyrgulopsis aardahli, commonly known as the Benton Valley springsnail, is a species of freshwater snails in the family Hydrobiidae.
Pyrgulopsis archimedis, commonly known as the archimedes pyrg, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Pyrgulopsis arizonae, commonly known as the Apache springsnail, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Pyrgulopsis bryantwalkeri, the Cortez Hills pebblesnail, is a species of minute freshwater snail with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Pyrgulopsis californiensis, the Laguna Mountain springsnail, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Pyrgulopsis carinifera is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
