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Fluminicola multifarius

Hershler, Liu, Frest, and Johannes, 2007

Shasta Pebblesnail

G2Imperiled Found in 2 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.866912

Element CodeIMGASG3540

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryInvertebrate Animal

KingdomAnimalia

PhylumMollusca

ClassGastropoda

OrderLittorinimorpha

FamilyLithoglyphidae

GenusFluminicola

Concept Reference

Hershler, R., H.-P. Liu, T.J. Frest, and E.J. Johannes. 2007. Extensive diversification of pebblesnails (Lithoglyphidae: Fluminicola) in the upper Sacramento River basin, northwestern USA. Zoological Journal of the Linnean Society 149:371-422.

Taxonomic Comments

Populations of F. multifarius in the Rogue basin were referred to as the Chinquapin pebblesnail, Emigrant pebblesnail, Keene Creek pebblesnail, Little Butte pebblesnail, and Pilot Rock pebblesnail by Frest and Johannes (2000, 2004, 2005) (Hershler et al. 2017).

Conservation Status

Review Date2011-10-27

Change Date2011-10-27

Threat ImpactUnknown

Range Extent Comments

In California, this species occurs in the Sacramento River headwater region (as far downflow as Conant), and a few sites in the upper reaches of the McCloud River drainage (Hershler et al. 2007). Records from the upper Rogue River basin south of Little Butte Creek, Oregon, extend the geographic range of this species about 80 km northward from the Sacramento River headwater region (Hershler et al. (2017). It is not known whether F. multifarius is also distributed in the intervening Klamath River basin; the pebblesnail fauna of this large watershed is currently undescribed.

Threat Impact Comments

Threats have not been assessed for this species.

Ecology & Habitat

Other Nations (1)

United StatesN2

Province	Rank	Native
California	SNR	Yes
Nevada	SNR	Yes
Oregon	S2	Yes

Threat Assessments

Threat	Scope	Severity	Timing
Unknown/undetermined	—	—	—

Roadless Areas (2)

Nevada (2)

Area	Forest	Acres
Rose - Evans	Humboldt-Toiyabe National Forest	4,782
Rose - Whites Canyon	Humboldt-Toiyabe National Forest	2,568

References (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
Hershler, R., H-P Liu, and N. Hubbart. 2017. Two new species of Fluminicola (Caenogastropoda, Lithoglyphidae) from southwest Oregon, USA, and a range extension for <i>F. multifarius</i>. ZooKeys 679:1-20.
Hershler, R., H.-P. Liu, T.J. Frest, and E.J. Johannes. 2007. Extensive diversification of pebblesnails (Lithoglyphidae: <i>Fluminicola</i>) in the upper Sacramento River basin, northwestern USA. Zoological Journal of the Linnean Society 149:371-422.
U.S. Fish and Wildlife Service (USFWS). 2012. Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List 14 Aquatic Mollusks as Endangered or Threatened. Federal Register 17(181):57922-57948.

Fluminicola multifarius

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