Pyrgulopsis aardahli

Pyrgulopsis aardahli, commonly known as the Benton Valley springsnail, is a species of freshwater snails in the family Hydrobiidae.

This species' natural habitat is springs. It is endemic to a spring on the Bramlette Ranch, Mono County, California, United States.

Description
Pyrgulopsis aardahli is a small snail that has a height of 2.6 - 3.4 mm and ovate to conical shell. Its differentiated from other Pyrgulopsis in that its penis has a very small lobe and short filament with the penial ornament consisting of a small, circular terminal gland and a stalked ventral gland.