Banbury Springs lanx

The Banbury Springs lanx (Idaholanx fresti), or Banbury Springs limpet, is a rare species of freshwater snail, an aquatic gastropod mollusk in the family Lymnaeidae. First discovered in 1988, the species was formally described and named in 2017.[1]

Banbury Springs lanx
Two active individuals of the Banbury Springs lanx. The one on the right is grazing.
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Lymnaeoidea
Family:
Lymnaeidae
Subfamily:
Lancinae
Genus:
Idaholanx

Clark, Campbell & Lydeard, 2017[1]
Binomial name
Idaholanx fresti
Clark, Campbell & Lydeard, 2017[1]

Distribution

This freshwater limpet is endemic to the US State of Idaho, where it is known from a 10-kilometer stretch of the Snake River. It is found in four complexes of springs along the Snake River in south-central Idaho: Thousand Springs, Box Canyon Springs, Banbury Springs, and Briggs Springs.[2]

Description

This snail is cinnamon red in color. The shell is conical in shape. It is up to 7.1 millimeters long by 6 wide and up to 4.3 millimeters tall.

This snail is similar in its morphology to species in the genus Lanx, but genetic analysis reveals that it is genetically more similar to the genus Fisherola.[2]

Habitat

The banbury springs lanx lives in fast flowing, clean, cold water springs. It needs highly oxygenated water. [3]

Conservation

In 1992 it was federally listed as an endangered species of the United States.[4] This species is endemic to Idaho. It only exists at four places: Thousand Springs, Box Canyon Springs, Briggs Springs and Banbury Springs. It is threatened by habitat modification, spring flow reduction, groundwater quality, and invasive species. [5]

Diet

Dead Plants and diatoms. [6]

References
  1. Campbell, David C.; Clark, Stephanie A.; Lydeard, Charles (2017). "Phylogenetic analysis of the Lancinae (Gastropoda, Lymnaeidae) with a description of the U.S. federally endangered Banbury Springs lanx". ZooKeys. 663: 107–132. doi:10.3897/zookeys.663.11320. PMC 5523177.
  2. USFWS.Banbury Springs Lanx Five-year Review. September 2006.
  3. "Banbury Springs Limpet - Idaho Fish and Game" (PDF). Idaho Fish and Game.
  4. USFWS. Determination of endangered or threatened status for five aquatic snails in South Central Idaho. Federal Register December 14, 1992.
  5. "No Change in Listing Status for Banbury Springs Lanx". U.S. Fish & Wildlife Service.
  6. "Banbury Springs Limpet Facts - Photos". earths endangered creatures.

https://idfg.idaho.gov/species/taxa/25757


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