Pyrgulopsis longiglans

A complete survey and inventory has not been conducted on this taxon in its known range in the past 20 years, it is largely unknown as to the current status. This species is patchily distributed in the western portion of the Lahontan Basin. Many locations in which the western Lahontan pyrg were observed and collected during inventories dating back to the early 1990's have only been surveyed a single time. On-going threats such as livestock grazing, wildfire, and impacts from spring development, as well as the documentation of the extirpation of several populations in 2009 may warrant a higher value than was given as it ecological integrity on the landscape is unknown. Additionally, there are likely some gaps and additional habitat that need further inventory. These can be segregated into two broad classes of inventory: 1) Site-specific inventories to better evaluate current watershed presence and status, and 2) large-scale inventories to locate populations in currently unsurveyed areas.

This species is patchily distributed in the western portion of the Lahontan Basin around the surrounding mountains of Pyramid Lake, northwest of the Black Rock Desert in Washoe and the western portion of Humboldt County, as well as in a disjunct local in the northern portion of Antelope Valley foothills in Douglas County.

Recent surveys have not been conducted in much of this taxon's range, several of the populations have been extirpated in the past 20 years.

Threats include wildfire, spring development and or alteration, livestock grazing as well as impacts from feral horses and burros.