Carinate Duckwater Pyrg (Pyrgulopsis carinata)

The Carinate Duckwater Pyrg was described in 1998, it was restricted to a stretch of only about 20 m of outflow habitat of a single spring in the Hot creek-Railroad Valleys in Nye County, Nevada, USA.

The species was last found during surveys in 2009, but has since not be recorded and is thus considered most likely extinct.

*********************

edited: 18.05.2019