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.

There at least 155 species of gastropods found in Montana. Some of these species are exotics (not native to Montana) and some species have been designated as Species of Concern.
 * Gastropods

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 bivalves

Freshwater gastropods
Freshwater gastropods in Montana include:

Bithyniidae
 * Bithynia tentaculata

Thiaridae
 * Melanoides tuberculata

Valvatidae
 * Valvata lewisi
 * Valvata humeralis
 * Valvata sincera
 * Valvata tricarinata

Hydrobiidae
 * Pyrgulopsis bedfordensis
 * Fluminicola fuscus
 * Probythinella emarginata
 * Potamopyrgus antipodarum
 * Colligyrus greggi
 * Amnicola limosa
 * an undescribed species of Amnicola, currently known as "Lake Amnicola" or "Amnicola sp. 1"

Acroloxidae
 * Acroloxus coloradensis

Lymnaeidae
 * Stagnicola apicina
 * Radix auricularia
 * Fossaria dalli
 * Stagnicola elrodi
 * Fossaria obrussa
 * Stagnicola elrodiana
 * Fossaria humilis
 * Stagnicola elodes
 * Pseudosuccinea columella
 * Stagnicola montanensis
 * Fossaria bulimoides
 * Fossaria parva
 * Fossaria modicella
 * Fisherola nuttalli
 * Lymnaea stagnalis
 * Stagnicola traski
 * Stagnicola catascopium
 * Stagnicola caperata

Physidae
 * Physella vinosa
 * Physa skinneri
 * Aplexa elongata
 * Physa megalochlamys
 * Physa jennessi
 * Physella acuta
 * Physella virgata
 * Physella propinqua
 * Physella columbiana
 * Physella gyrina
 * Physella lordi
 * Physella zionis

Planorbidae
 * Gyraulus parvus
 * Menetus opercularis
 * Gyraulus circumstriatus
 * Planorbella pilsbryi
 * Gyraulus deflectus
 * Planorbella trivolvis
 * Planorbula campestris
 * Promenetus exacuous megas
 * Planorbella subcrenata
 * Promenetus exacuous
 * Gyraulus crista
 * Planorbula armigera
 * Helisoma anceps
 * Promenetus umbilicatellus
 * Ferrissia rivularis
 * Ferrissia fragilis
 * Ferrissia parallelus

Land gastropods
Land gastropods in Montana include:

Succineidae
 * Catinella rehderi
 * Catinella vermeta
 * Oxyloma decampi
 * Oxyloma gouldi
 * Oxyloma haydeni
 * Oxyloma missoula
 * Oxyloma nuttallianum
 * Oxyloma retusum
 * Succinea grosvenori

Arionidae
 * Arion ater
 * Arion circumscriptus
 * Arion distinctus
 * Arion fasciatus
 * Arion intermedius
 * Arion rufus
 * Arion subfuscus
 * Hemphillia camelus
 * Hemphillia danielsi
 * Kootenaia burkei
 * Magnipelta mycophaga
 * Prophysaon andersoni
 * Prophysaon humile
 * Udosarx lyrata - with subspecies: Udosarx lyrata lyrata and Udosarx lyrata russelli
 * Zacoleus idahoensis

Megomphicidae
 * Polygyrella polygyrella

Vertiginidae
 * Columella columella
 * Columella edentula
 * Gastrocopta armifera
 * Gastrocopta holzingeri
 * Gastrocopta pentodon
 * Vertigo binneyana
 * Vertigo concinnula
 * Vertigo cristata
 * Vertigo elatior
 * Vertigo gouldi
 * Vertigo modesta
 * Vertigo ovata

Pupillidae
 * Pupilla blandi
 * Pupilla hebes
 * Pupilla muscorum
 * Pupilla syngenes

Discidae
 * Anguispira kochi
 * Discus whitneyi
 * Discus brunsoni
 * Discus shimekii

Limacidae
 * Limax maximus

Agriolimacidae
 * Deroceras laeve
 * Deroceras panormitanum
 * Deroceras reticulatum

Oxychilidae
 * Nesovitrea electrina
 * Nesovitrea binneyana
 * Oxychilus draparnaudi
 * Oxychilus alliarius

Gastrodontidae
 * Striatura pugetensis
 * Zonitoides arboreus
 * Zonitoides nitidus

Pristilomatidae
 * Hawaiia minuscula
 * Pristiloma arcticum
 * Pristiloma chersinella
 * Pristiloma wascoense

Vitrinidae
 * Vitrina pellucida

Euconulidae
 * Euconulus fulvus

Haplotrematidae
 * Haplotrema vancouverense

Oreohelicidae
 * Oreohelix alpina
 * Oreohelix amariradix
 * Oreohelix carinifera
 * Oreohelix elrodi
 * Oreohelix haydeni
 * Oreohelix pygmaea
 * Oreohelix strigosa - with subspecies: Oreohelix strigosa berryi and Oreohelix strigosa depressa
 * Oreohelix subrudis
 * Oreohelix yavapai - with subspecies: Oreohelix yavapai mariae

Polygyridae
 * Allogona ptychophora
 * Cryptomastix mullani
 * Cryptomastix sanburni

Cochlicopidae
 * Cochlicopa lubrica

Charopidae
 * Radiodiscus abietum

Punctidae
 * Paralaoma caputspinulae
 * Punctum randolphi
 * Punctum californicum
 * Punctum minutissimum

Thysanophoridae
 * Microphysula ingersolli

Valloniidae
 * Vallonia albula
 * Vallonia costata
 * Vallonia cyclophorella
 * Vallonia gracilicosta
 * Vallonia perspectiva
 * Vallonia pulchella
 * Zoogenetes harpa

Freshwater bivalves
Freshwater bivalves in Montana include:

Margaritiferidae
 * Margaritifera falcata

Unionidae
 * Lampsilis siliquoidea
 * Lasmigona complanata
 * Ligumia recta
 * Pyganodon grandis
 * Quadrula quadrula

Sphaeriidae
 * Musculium lacustre
 * Musculium partumeium
 * Musculium securis
 * Musculium transversum
 * Pisidium adamsi
 * Pisidium arbortivum
 * Pisidium casertanum
 * Pisidium compressum
 * Pisidium conventus
 * Pisidium fallax
 * Pisidium ferrugineum
 * Pisidium idahoense
 * Pisidium imbecille
 * Pisidium insigne
 * Pisidium lilljeborgii
 * Pisidium milium
 * Pisidium nitidum
 * Pisidium obtusale
 * Pisidium ovum
 * Pisidium roperi
 * Pisidium rotundatum
 * Pisidium scutulatum
 * Pisidium subtruncatum
 * Pisidium variabile - with subspecies: Pisidium variabile magnum
 * Pisidium ventricosum
 * Pisidium walkeri
 * Sphaerium fabale
 * Sphaerium nitidum
 * Sphaerium occidentale
 * Sphaerium patella
 * Sphaerium rhomboideum
 * Sphaerium simile
 * Sphaerium striatinum
 * Sphaerium sulcatum
 * Sphaerium tenue