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Home/Species/ Lance Aplexa

Sibirenauta elongata

(Say, 1821)

Lance Aplexa

G5Secure Found in 3 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Least concernIUCN
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.107761
Element CodeIMGASL8010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryInvertebrate Animal
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumMollusca
ClassGastropoda
OrderBasommatophora
FamilyPhysidae
GenusSibirenauta
Synonyms
Aplexa elongata(Say, 1821)Sibirenauta elgonataus(Say, 1821)
Other Common Names
Physe des mousses (FR)
Concept Reference
Turgeon, D. D., J. F. Quinn, Jr., A. E. Bogan, E. V. Coan, F. G. Hochberg, W. G. Lyons, P. M. Mikkelsen, R. J. Neves, C. F. E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F. G. Thompson, M. Vecchione, and J. D. Williams. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. 2nd Edition. American Fisheries Society Special Publication 26, Bethesda, Maryland. 526 pp.
Taxonomic Comments
Aplexa elongata was included in Johnson et al. (2013) and Turgeon et al. (1988, 1998). The Freshwater Mollusk Conservation Society (FMCS 2023) follows MolluscaBase in accepting this species as a Sibirenauta elongata, based upon Vinarski and Kantor (2016).
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2015-03-06
Change Date1999-09-14
Edition Date2015-03-06
Edition AuthorsCordeiro, J. (2008), Ormes, M. (2015)
Threat ImpactLow
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
This species is ranked as secure in view of its wide distribution, presumed large population, and lack of known threats.
Range Extent Comments
This species has a broad distribution across northern North America. It ranges from Northwest Territories, Canada, from the vicinity of Great Slave Lake southeast (south of Hudson Bay) to Anticosti Island, Quebec, and Nova Scotia; south through British Columbia, eastern Washington and eastern Oregon to southernmost Utah and Colorado; east across the Great Plains from northeastern Colorado through northern Nebraska to central Illinois, through Indiana and Ohio to Pennsylvania and eastern Massachusetts; also in Illinois and Ohio there are early records from south of the modern known range (Taylor, 2003).
Occurrences Comments
This species is represented by a large number of occurrences (subpopulations).
Threat Impact Comments
Given the large geographic distribution of this species, it is unlikely that any major threat is impacting its global population. However, some sub-populations may be experiencing localized declines due to habitat loss and degradation.
Ecology & Habitat

Habitat

This species lives in different habitats including temporary pools, dried up ponds, under moist leaves, ravines, clean brooks, ponds, and lake margins (Taylor, 2003).
Palustrine Habitats
TEMPORARY POOLHERBACEOUS WETLANDFORESTED WETLAND
Other Nations (2)
United StatesN5
ProvinceRankNative
NevadaSNRYes
WashingtonS3Yes
NebraskaSNRYes
OregonSNRYes
MichiganSNRYes
IdahoS3Yes
New YorkS2Yes
VirginiaSNRYes
OhioSNRYes
South DakotaSNRYes
PennsylvaniaS3Yes
VermontSNRYes
UtahSHYes
IowaSNRYes
MassachusettsS4Yes
New HampshireSNRYes
WyomingS3Yes
District of ColumbiaSNRYes
MaineSNRYes
MarylandSNRYes
WisconsinSUYes
IndianaSNRYes
MontanaSNRYes
AlaskaSNRYes
ConnecticutS2Yes
North DakotaSNRYes
ColoradoS4Yes
IllinoisSNRYes
CanadaN5
ProvinceRankNative
British ColumbiaS5Yes
New BrunswickSUYes
Northwest TerritoriesSUYes
ManitobaS5Yes
NunavutSUYes
SaskatchewanSUYes
OntarioS5Yes
Nova ScotiaSUYes
QuebecSNRYes
Prince Edward IslandSUYes
AlbertaS4Yes
Roadless Areas (3)
Montana (1)
AreaForestAcres
Mt. Hefty Ra 1481Flathead National Forest12,938
Utah (2)
AreaForestAcres
Mahogany RangeWasatch-Cache National Forest11,409
WellsvilleWasatch-Cache National Forest1,717
References (23)
  1. Baxter, R. 1987. Mollusks of Alaska: a listing of all mollusks, freshwater, terrestrial, and marine reported from the State of Alaska, with locations of the species types, maximum sizes and marine depths inhabited. Shells and Sea Life, Bayside, California. 163 pp.
  2. Clarke, A.H. 1981a. The freshwater mollusks of Canada. National Museum of Natural Sciences, National Museums of Canada, D. W. Friesen and Sons, Ltd.: Ottawa, Canada. 446 pp.
  3. Freshwater Mollusk Conservation Society (FMCS). 2019. Scientific and Common Names of Freshwater Gastropods of the US and Canada. PDF download from https://molluskconservation.org.
  4. Freshwater Mollusk Conservation Society (FMCS). 2021. The 2021 checklist of freshwater gastropods (Mollusca: Gastropods) of the United States and Canada. Considered and approved by the Gastropods Names Subcommittee December 2020. Online: https://molluskconservation.org/MServices_Names-Gastropods.html
  5. Freshwater Mollusk Conservation Society (FMCS). 2023. 2023 Symposium Gastropod Petition. Online: https://molluskconservation.org/Library/Gastropods/FMCS%202023%20Gastropod%20Petitions.pdf
  6. Freshwater Mollusk Conservation Society (FMCS). 2023. The 2023 checklist of freshwater gastropods of Canada, Mexico, and the United States. Considered and approved by the Gastropod Names Subcommittee December 2023. Online: https://molluskconservation.org/MServices_Names-Gastropods.html
  7. Johnson, P.D., A.E. Bogan, K.M. Brown, N.M. Burkhead, J.R. Cordeiro, J.T. Garner, P.D. Hartfield, D.A.W. Lepitzki, G.L. Mackie, E. Pip, T.A. Tarpley, J.S. Tiemann, N.V. Whelan, and E.E Strong. 2013. Conservation status of freshwater gastropods of Canada and the United States. Fisheries 38(6):247-282.
  8. Jokinen, E.H. 2005. Pond molluscs of Indiana Dunes National Lakeshore: then and now. American Malacological Bulletin 20: 1-9.
  9. Lepitzki, D.A.W. 2001. Gastropods: 2000 preliminary status ranks for Alberta. Unpublished report prepared for Alberta Sustainable Resource Development, Fish and Wildlife Division, Edmonton, Alberta. 126 pp.
  10. MolluscaBase eds. 2025. MolluscaBase. Accessed at https://www.molluscabase.org
  11. Pip, E. 2000. The decline of freshwater molluscs in southern Manitoba. Canadian Field Naturalist 114(4):555-560.
  12. Pyron, M., J. Beaugly, E. Martin, and M. Spielman. 2008. Conservation of the freshwater gastropods of Indiana: Historic and current distributions. American Malacological Bulletin, 26: 137-151.
  13. Stephen, B. J. 2017. Distribution and conservation status of the freshwater gastropods of Nebraska. Transactions of the Nebraska Academy of Sciences and Affiliated Societies. 510. http://digitalcommons.unl.edu/tnas/510
  14. Stephen, B.J. and V.B. Winkler. 2007. A survey of the freshwater snails of the major ecoregions of South Dakota. Ellipsaria, 9(1): 14-15.
  15. Taylor, D.W. 2003. Introduction to Physidae (Gastropoda: Hygrophiila); biogeography, classification, morphology. Revista de Biologia Tropical (International Journal of Tropical Biology and Conservation), 51, supplement 1: 1-287.
  16. Te, G.A. 1980. New classification system for the family Physidae. Archiv fur Molluskunde, 110(4/6): 179-184.
  17. Turgeon, D. D., A. E. Bogan, E. V. Coan, W. K. Emerson, W. G. Lyons, W. L. Pratt, C. F. E. Roper, A. Scheltema, F. G. Thompson, and J. D. Williams. 1988. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. American Fisheries Society Special Publication 16. 277 pp.
  18. Turgeon, D. D., J. F. Quinn, Jr., A. E. Bogan, E. V. Coan, F. G. Hochberg, W. G. Lyons, P. M. Mikkelsen, R. J. Neves, C. F. E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F. G. Thompson, M. Vecchione, and J. D. Williams. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. 2nd Edition. American Fisheries Society Special Publication 26, Bethesda, Maryland. 526 pp.
  19. Turner, A.M. and S.L. Montgomery. 2009. Hydroperiod, predators and the distribution of physid snails across the freshwater habitat gradient. Freshwater Biology 54:1189-1201.
  20. Vinarski, M. V., and Y. I. Kantor. 2016. Analytical catalogue of fresh and brackish water molluscs of Russia and adjacent countries. A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Science, Moscow. 544 pp.
  21. Wethington, A.R. and C. Lydeard. 2007. A molecular phylogeny of Physidae (Gastropoda: Basommatophora) based on mitochondrial DNA sequences. Journal of Molluscan Studies, 73(3): 241-257.
  22. Wu, S.-K. 2004-2005 [2005]. Nebraska Physidae (Gastropoda: Pulmonata: Hygrophila). Malacological Review, 37/38: 185-196.
  23. Wu, S.-K. and D.E. Beetle. 1995. Wyoming Physidae (Gastropoda: Pulmonata: Hygrophila). Malacological Review, 28(1-2): 81-95.