List of non-marine molluscs of Montana
The non-marine mollusks of Montana — a part of the molluscan fauna of the state in the Northwestern United States. The non-marine mollusks of Montana consist of land snails and slugs as well as freshwater snails, freshwater mussels and freshwater clams.
Species
A number of species of non-marine molluscs are found in the wild in Montana.;Gastropods
There at least 155 species of gastropods found in Montana. Some of these species are exotics and some species have been designated as Species of Concern.
;Freshwater bivalves
There are at least 42 species of freshwater bivalves known in Montana. The Montana Department of Fish, Wildlife and Parks has identified a number of bivalve species as Species of Concern.
Freshwater gastropods
Freshwater gastropods in Montana include:BithyniidaeBithynia tentaculata
ThiaridaeMelanoides tuberculata
ValvatidaeValvata lewisiValvata humeralisValvata sinceraValvata tricarinata
HydrobiidaePyrgulopsis bedfordensisFluminicola fuscusProbythinella emarginataPotamopyrgus antipodarumColligyrus greggiAmnicola limosa
- an undescribed species of Amnicola, currently known as "Lake Amnicola" or "Amnicola sp. 1"
LymnaeidaeStagnicola apicinaRadix auriculariaFossaria dalliStagnicola elrodiFossaria obrussaStagnicola elrodianaFossaria humilisStagnicola elodesPseudosuccinea columellaStagnicola montanensisFossaria bulimoidesFossaria parvaFossaria modicellaFisherola nuttalliLymnaea stagnalisStagnicola traskiStagnicola catascopiumStagnicola caperata
PhysidaePhysella vinosaPhysa skinneriAplexa elongataPhysa megalochlamysPhysa jennessiPhysella acutaPhysella virgataPhysella propinquaPhysella columbianaPhysella gyrinaPhysella lordiPhysella zionis
PlanorbidaeGyraulus parvusMenetus opercularisGyraulus circumstriatusPlanorbella pilsbryiGyraulus deflectusPlanorbella trivolvisPlanorbula campestrisPromenetus exacuous megasPlanorbella subcrenataPromenetus exacuousGyraulus cristaPlanorbula armigeraHelisoma ancepsPromenetus umbilicatellusFerrissia rivularisFerrissia fragilis
- ''Ferrissia parallelus''
Land gastropods
Land gastropods in Montana include:SuccineidaeCatinella rehderiCatinella vermetaOxyloma decampiOxyloma gouldiOxyloma haydeniOxyloma missoulaOxyloma nuttallianumOxyloma retusumSuccinea grosvenori
ArionidaeArion aterArion circumscriptusArion distinctusArion fasciatusArion intermediusArion rufusArion subfuscusHemphillia camelusHemphillia danielsiKootenaia burkeiMagnipelta mycophagaProphysaon andersoniiProphysaon humileUdosarx lyrata - with subspecies: Udosarx lyrata lyrata and Udosarx lyrata russelliZacoleus idahoensis
MegomphicidaePolygyrella polygyrella
VertiginidaeColumella columellaColumella edentulaGastrocopta armiferaGastrocopta holzingeriGastrocopta pentodonVertigo binneyanaVertigo concinnulaVertigo cristataVertigo elatiorVertigo gouldiiVertigo modestaVertigo ovata
PupillidaePupilla blandiPupilla hebesPupilla muscorumPupilla syngenes
DiscidaeAnguispira kochiDiscus whitneyiDiscus brunsoniDiscus shimekii
LimacidaeLimax maximus
AgriolimacidaeDeroceras laeveDeroceras panormitanumDeroceras reticulatum
OxychilidaeNesovitrea electrinaNesovitrea binneyanaOxychilus draparnaudiOxychilus alliarius
GastrodontidaeStriatura pugetensisZonitoides arboreusZonitoides nitidus
PristilomatidaeHawaiia minusculaPristiloma arcticumPristiloma chersinellaPristiloma wascoense
VitrinidaeVitrina pellucida
EuconulidaeEuconulus fulvus
HaplotrematidaeHaplotrema vancouverense
OreohelicidaeOreohelix alpinaOreohelix amariradixOreohelix cariniferaOreohelix elrodiOreohelix haydeniOreohelix pygmaeaOreohelix strigosa - with subspecies: Oreohelix strigosa berryi and Oreohelix strigosa depressaOreohelix subrudisOreohelix yavapai - with subspecies: Oreohelix yavapai mariae
PolygyridaeAllogona ptychophoraCryptomastix mullaniCryptomastix sanburni
CochlicopidaeCochlicopa lubrica
CharopidaeRadiodiscus abietum
PunctidaeParalaoma caputspinulaePunctum randolphiPunctum californicumPunctum minutissimum
ThysanophoridaeMicrophysula ingersolli
ValloniidaeVallonia albulaVallonia costataVallonia cyclophorellaVallonia gracilicostaVallonia perspectivaVallonia pulchella
- ''Zoogenetes harpa''
Freshwater bivalves
Freshwater bivalves in Montana include:MargaritiferidaeMargaritifera falcata
UnionidaeLampsilis siliquoideaLasmigona complanataLigumia rectaPyganodon grandisQuadrula quadrula
SphaeriidaeMusculium lacustreMusculium partumeiumMusculium securisMusculium transversumPisidium adamsiPisidium arbortivumPisidium casertanumPisidium compressumPisidium conventusPisidium fallaxPisidium ferrugineumPisidium idahoensePisidium imbecillePisidium insignePisidium lilljeborgiiPisidium miliumPisidium nitidumPisidium obtusalePisidium ovumPisidium roperiPisidium rotundatumPisidium scutulatumPisidium subtruncatumPisidium variabile - with subspecies: Pisidium variabile magnumPisidium ventricosumPisidium walkeriSphaerium fabaleSphaerium nitidumSphaerium occidentaleSphaerium patellaSphaerium rhomboideumSphaerium simileSphaerium striatinumSphaerium sulcatum
- ''Sphaerium tenue''