Crystal Spring springsnail

The Crystal Spring springsnail, scientific name Pyrgulopsis crystalis, is a species of small freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae.

This species' natural habitat is springs. It is endemic to Crystal Pool, Ash Meadows, Nevada, United States.

Description
Pyrgulopsis crystalis is a small snail that has a height of 1.8 - 2.6 mm and a globose to neritiform, small to medium-sized shell. Its differentiated from other Pyrgulopsis in that its penial filament has an absent lobe and elongate filament with the penial ornament consisting of a large, superficial ventral gland.