This species is found in a single spring ("Waterfall" spring- the source of Hardscrabble Creek) in the Pyramid Lake Basin, Washoe County, Nevada (Hershler, 1999).

This species is distuinguished from other congeners by the strongly (adapically) angled shell whorls, large shell aperture, and highly eccentric operculum nucleus. It otherwise closely resembles F. turbiniformis, although it also differs from this species in having a relatively longer bursal duct (Hershler, 1999).