Aquatic Invertebrates of Montana

Gastropoda

A summary of this list can be found here.

Subclass Prosobranchia

• Family Valvatidae
  • Valvata humeralis Say
  • ?Valvata sincera Say
  • ?Valvata tricarinata (Say)
• Family Bithyniidae
  • +Bithynia tentaculata (Linnaeus)
• Family Viviparidae
  • ?Viviparus sp.
  • ?Campeloma sp.
• Family Hydrobiidae
  • Amnicola (Amnicola) limosa (Say)
  • Amnicola (Lyogyrus) greggi Pilsbry
  • ?Probythinella lacustris (Baker)
  • Pyrgulopsis new species
  • Potamopyrgus antipodarum (Gray)
• Family Pleuroceridae
  • ?Elimia (Goniobasis) sp. in the east
  • ?Juga plicifera (Lea) in the west
• Family Thiaridae
  • +Melanoides tuberculata (Muller)

Subclass Pulmonata

• Family Acroloxidae
  • Acroloxus coloradensis (Henderson)
• Family Ancylidae
  • Ferrissia rivularis (Say)
  • Ferrissia fragilis (Tryon)
• Family Lancidae
  • Fisherola nuttalli (Haldeman)
• Family Lymnaeidae
  • Fossaria bulimoides (lea)
  • Fossaria dalli (Baker)
  • Fossaria modicella Say
  • Fossaria obrussa (Say)
  • Fossaria parva (Say)
  • Lymnaea stagnalis appressa Say
  • +Radix auricularia (Linnaeus)
  • Stagnicola apicina (Lea)
  • Stagnicola caperata (Say)
  • Stagnicola elodes (Say)
  • Stagnicola elrodi (Baker & Henderson)
  • Stagnicola elrodiana (Baker)
  • Stagnicola montanensis (Baker)
  • Stagnicola traski (Tryon)
• Family Physidae
  • Aplexa elongata (Say)
  • Physa skinneri Taylor
  • Physella columbiana (Hemphil)
  • Physella gyrina (Say)
  • Physella lordi (Baird)
  • Physella propinqua (Tryon)
  • Physella vinosa (Gould)
  • Physella virgata (Gould)
• Family Planorbidae
  • ?Armiger crista (Linnaeus)
  • Gyraulus circumstriatus (Tryon)
  • Gyraulus deflectus (Say)
  • Gyraulus parvus (Say)
  • Helisoma ancepts (Menke)
  • ?Menetus opercularis (Gould)
  • Planorbella pilsbryi (Baker)
  • Planorbella trivolvis (Say)
  • Planorbula armigera (Say)
  • Planorbula campestris (Dawson)
  • Promenetus exacuous (Say)
  • Promenetus umbilicatellus (Cockerll)