Description: A member of the aquatic snail family, 1.5 1.9 mm (to 0.07 in.) in length, and 1.3 - 1.7 mm (to 0.07 in.) in width. Shell sub-globose, filament of medium length, lobe short. Penial ornament a small terminal gland with a large penial gland. Ventral gland is also large. This springsnail completes its life cycle in one year.
Diet: Feeds on algae.
Habitat: Spring ecosystems with permanent flow of highly oxygenated water. The water must also be highly mineralized but relatively unpolluted.
Range: Southern Nevada endemic. Known from the Spring Mountains in Red Spring and Kiup Spring. Previously known from Willow Spring, Clark County, and from southern Nye County, now presumed extirpated.
Comments: The MSHCP includes two Evaluation Species, the Moapa pebblesnail (Pyrgulopsis avernalis) and the Moapa turban snail (Pyrgulopsis carinifera).