Twelve species of Mollusca are reported from the Fish Springs area in west central Utah, including Stagnicola pilsbryi (Hemphill, 1890). Most of the species are well known from Utah or the southwestern United States except S. pilsbryi, which is apparently endemic to Fish Springs.
Russell, Richard H.
"Mollusca of Fish Springs, Juab County, Utah: rediscovery of Stagnicola pilsbryi (Hemphill, 1890),"
Great Basin Naturalist: Vol. 31
, Article 3.
Available at: http://scholarsarchive.byu.edu/gbn/vol31/iss4/3