# List of mollusks of Utah

This is a list of mollusks observed in the U.S. state of Utah.
* Bear Lake springsnail (Pyrgulopsis pilsbryana)
* Bifid duct pyrg (Pyrgulopsis peculiaris)
* Black Canyon pyrg (Pyrgulopsis plicata)
* Black Gloss (Zonitoides nitidus)
* Brian Head Mountainsnail (Oreohelix parawanensis)
* California floater (Anodonta californiensis)
* Carinate Glenwood pyrg (Pyrgulopsis inopinata)
* Cloaked physa (Physa megalochlamys)
* Coarse Rams-horn (Planorbella binneyi)
* Creeping ancylid (Ferrissia rivularis)
* Crestless column (Pupilla hebes)
* Cross snaggletooth (Gastrocopta quadridens)
* Cross vertigo (Vertigo modesta)
** V. m. insculpta
** V. m. corpulenta
** V. m. parietalis
* Deseret mountainsnail (Oreohelix peripherica)
* Desert springsnail (Pyrgulopsis deserta)
* Desert tryonia (Tryonia porrecta)
* Eureka mountainsnail (Oreohelix eurekensis)
** O. e. eurekensis
** O. e. uinta
* Fat-whorled pondsnail (Stagnicola bonnevillensis)
* Fish Lake physa (Physella microstriata)
* Fish Springs marshsnail (Stagnicola pilsbryi)
* Freshwater snail (Fossaria techella)
* Freshwater snail (Fossaria modicella rustica)
* Glass physa (Physa skinneri)
* Glossy valvata (Valvata humeralis californica)
* Great Basin rams-horn (Helisoma newberryi)
* Green River pebblesnail (Fluminicola coloradoensis)
* Hamlin Valley pyrg (Pyrgulopsis hamlinensis)
* Kanab ambersnail (Oxyloma kanabense)
* Lamb rams-horn (Planorbella oregonensis)
* Lance aplexa (Aplexa elongata)
* Land snail (Nesovitrea electrina)
* Longitudinal gland pyrg (Pyrgulopsis anguina)
* Lyrate mountainsnail (Oreohelix haydeni)
* Mellow column (Columella columella alticola)
* Mexican coil (Helicodiscus eigenmanni)
* Mill Creek mountainsnail (Oreohelix howardi)
* Minute gem (Hawaiia minuscula minuscula)
* Mitered vertigo (Vertigo concinnula)
* Montane snaggletooth (Gastrocopta pilsbryana)
* Mountain marshsnail (Stagnicola montanensis)
* Mud amnicola (Amnicola limosus limosus)
* New Zealand mud snail (Potamopyrgus antipodarum) - not native and considered invasive
* Ninemile pyrg (Pyrgulopsis nonaria)
* Northwest Bonneville pyrg (Pyrgulopsis variegata)
* Oregon floater (Anodonta oregonensis)
* Otter Creek pyrg (Pyrgulopsis fusca)
* Ovate vertigo (Vertigo ovata)
* Prairie fossaria (Fossaria bulimoides)
* Protean physa (Physella virgata)
** P. v. virgata
** P. v. berendti
** P. v. concolor
* Pygmy fossaria (Fossaria parva)
* Quagga mussel (Dreissena bugensis) - considered an invasive species, found in Lake Powell and suspected of being in Deer Creek Reservoir
* Red-rimmed melania (Melanoides tuberculata) - not native and considered invasive
* Ribbed dagger (Pupoides hordaceus)
* Rocky Mountain duskysnail (Lyogyrus greggi)
* Rustic ambersnail (Succinea rusticana rusticana)
* Santa Rita ambersnail (Succinea grosvenori grosvenori)
* Sharp sprite (Promenetus exacuous)
* Sierra ambersnail (Catinella stretchiana)
* Slim snaggletooth (Gastrocopta pellucida parvidens)
* Sluice snaggletooth (Gastrocopta ashmuni)
* Smooth Glenwood pyrg (Pyrgulopsis chamberlini)
* Southern Bonneville pyrg (Pyrgulopsis transversa)
* Southern tightcoil (Ogaridiscus subrupicola)
* Striate disc (Discus shimekii)
* Striate gem (Hawaiia minuscula neomexicana)
* Sub-globose snake pyrg (Pyrgulopsis saxatilis)
* Swamp lymnaea (Lymnaea stagnalis appressa)
* Tapered vertigo (Vertigo elatior)
* Texas glyph (Glyphyalinia umbilicata)
* Thickshell pondsnail (Stagnicola utahensis)
* Thin-lip vallonia (Vallonia perspectiva)
* Utah physa (Physella utahensis)
* Utah roundmouth snail (Valvata utahensis)
* Variable vertigo (Vertigo gouldii)
* Western pearlshell (Margaritifera falcata)
* Wet rock physa (Physella zionis)
* White-lip dagger (Pupoides albilabris)
* Widelip pondsnail (Stagnicola traski)
* Widespread column (or Moss chrysalis snail) (Pupilla muscorum)
* Winged floater (Anodonta nuttalliana)
* Yavapai mountainsnail (Oreohelix yavapai)