Location 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.[1] Some of these species are exotics (not native to Montana)[2] and some species have been designated as Species of Concern.[3]

Freshwater bivalves

There are at least 42 species of freshwater bivalves known in Montana.[4] The Montana Department of Fish, Wildlife and Parks has identified a number of bivalve species as Species of Concern.[5]

List of non-marine molluscs

Summary table of number of species:
Numbers of molluscs by habitat Number of species
Freshwater gastropods  ??
Land gastropods  ??
Total number of non-marine gastropods 155
Freshwater bivalves 42
Total number of non-marine molluscs 197

Freshwater gastropods

Freshwater gastropods in Montana include:[6]

Bithyniidae

Thiaridae

Valvatidae[7]

Hydrobiidae[8]

Acroloxidae

Radix auricularia
Lymnaea stagnalis

Lymnaeidae

Physidae

Planorbidae

Land gastropods

Land gastropods in Montana include:[10]

Succineidae

  • Catinella rehderi
  • Catinella vermeta
  • Oxyloma decampi
  • Oxyloma gouldi
  • Oxyloma haydeni
  • Oxyloma missoula
  • Oxyloma nuttallianum
  • Oxyloma retusum
  • Succinea grosvenori
Arion circumscriptus

Arionidae

Megomphicidae

  • Polygyrella polygyrella

Vertiginidae

Pupillidae

Discidae

Limax maximus

Limacidae

Agriolimacidae

Oxychilidae

Gastrodontidae

Pristilomatidae

Vitrinidae

Euconulidae

Haplotrematidae

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

Cochlicopidae

Charopidae

  • Radiodiscus abietum

Punctidae

Thysanophoridae

  • Microphysula ingersolli
Vallonia pulchella

Valloniidae

Freshwater bivalves

Freshwater bivalves in Montana include:

Margaritiferidae[11]

Unionidae[12]

Sphaeriidae[13]

See also

References

  1. ↑ "Gastropoda". Montana Natural Heritage Program. Retrieved 2011-07-22.
  2. ↑ Exotic species have been deliberately or accidentally introduced to areas outside of their native geographic range and are able to reproduce and maintain sustainable populations in these areas. These exotic populations may also be referred to as alien, introduced, invasive, non-native, or non-indigenous."Species Status Codes, Exotics". Montana Natural Heritage Project. Retrieved 2011-06-17.
  3. ↑ Species of Concern are native taxa that are at-risk due to declining population trends, threats to their habitats, restricted distribution, and/or other factors. Designation as a Montana Species of Concern or Species of Concern is based on the Montana Status Rank, and is not a statutory or regulatory classification. Rather, these designations provide information that helps resource managers make proactive decisions regarding species conservation and data collection priorities."Species Status Codes, Species of Concern". Montana Natural Heritage Project. Retrieved 2011-06-17.
  4. ↑ "Montana Field Guide-Bivalvia". Montana Department of Fish, Wildlife and Parks. Retrieved 2010-12-26.
  5. ↑ Species of Concern are native taxa that are at-risk due to declining population trends, threats to their habitats, restricted distribution, and/or other factors. Designation as a Montana Species of Concern or Potential Species of Concern is based on the Montana Status Rank, and is not a statutory or regulatory classification. Rather, these designations provide information that helps resource managers make proactive decisions regarding species conservation and data collection priorities. See the latest Species of Concern Reports for more detailed explanations and assessment criteria."Montana Field Guide-Species of Concern". Retrieved 2010-12-07.
  6. ↑ "Basommatophora". Montana Nature Heritage Program. Retrieved 2011-07-22.
  7. ↑ "Heterostropha". Montana Nature Heritage Program. Retrieved 2011-07-22.
  8. ↑ "Neotaenioglossa". Montana Nature Heritage Program. Retrieved 2011-07-22.
  9. ↑ "Lake Amnicola — Amnicola sp. 1". Montana Field Guide. Montana Natural Heritage Program. Montana State Government. Retrieved 19 July 2014.
  10. ↑ "Stylommatophora". Montana Nature Heritage Program. Retrieved 2011-07-22.
  11. ↑ "Montana Field Guide-Margaritiferid mussels". Montana Department of Fish, Wildlife and Parks. Retrieved 2012-12-28.
  12. ↑ "Montana Field Guide-Unionid mussels". Montana Department of Fish, Wildlife and Parks. Retrieved 2012-12-28.
  13. ↑ "Montana Field Guide-Fingerclams". Montana Department of Fish, Wildlife and Parks. Retrieved 2012-12-28.

Further reading

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