- Source: Duckwater pyrg
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.
It is a small Pyrgulopsis with a shell height of 1–1.9 mm (0.04–0.07 in) and shell width of 1–1.7 mm (0.04–0.07 in).
