Pyrgulopsis
Pyrgulopsis californiensis
Pyrgulopsis milleri
Pyrgulopsis carinifera
Pyrgulopsis deserta
Pyrgulopsis archimedis
Duckwater pyrg
Pyrgulopsis aardahli
Pyrgulopsis perforata
Pyrgulopsis arizonae
Pyrgulopsis blainica
Pyrgulopsis sanchezi
Pyrgulopsis bryantwalkeri
Gila springsnail
Kingman springsnail
Montezuma Well springsnail
Pyrgulopsis castaicensis
Huachuca springsnail
Pyrgulopsis licina
Chupadera springsnail
Pyrgulopsis bedfordensis
Moapa pebblesnail
Phantom cave snail
Fairbanks springsnail
Grand Wash springsnail
Corded purg
Brown springsnail
Roswell springsnail
Crystal Spring springsnail
Ash Meadows pebblesnail
Davis County springsnail
Jackson lake springsnail
Transverse grand pyrg
Fossil springsnail
Page springsnail
New Mexico hotspring snail
Pyrgulopsis minkleyi
Bruneau hot springsnail
South Sierra Nevada springsnail
Pecos springsnail
San Bernardino springsnail
Elongate-gland springsnail
Median-gland Nevada springsnail
Oasis Valley springsnail
Three Forks springsnail
Distal-gland springsnail
Verde Rim springsnail
Naegele springsnail
Socorro springsnail
Amargosa springsnail
Marstonia scalariformis
Marstonia pachyta
Marstonia olivacea
Marstonia castor
Marstonia ozarkensis
Marstonia agarhecta
Marstonia ogmorhaphe