Three-ridge Valvata
Valvata tricarinata (Say, 1817)
Three-ridge Valvata: https://marylandbiodiversity.org/species/17493
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Source: Wikipedia

Valvata tricarinata
Drawing: apertural view of shell of Valvata tricarinata
Secure
Secure (NatureServe)[2]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Family: Valvatidae
Genus: Valvata
Species:
V. tricarinata
Binomial name
Valvata tricarinata
(Say, 1817)
Synonyms[3]
  • Cyclostoma tricarinata Say, 1817
  • Valvata carinata Sowerby I, 1834
  • Valvata simplex Gould, 1841
  • Valvata tricarinata perconfusa Walker, 1917
  • Valvata tricarinata unicarinata De Kay, 1843
  • Valvata tricarinata var. bakeri Fluck, 1932
  • Valvata tricarinata var. basalis Vanatta 1915
  • Valvata tricarinata var. confusa Walker, 1902
  • Valvata tricarinata var. infracarinata Vanatta, 1915
  • Valvata tricarinata var. mediocarinata Baker, 1928
  • Valvata tricarinata var. mediocarinta Baker, 1928
  • Valvata tricarinata var. perconfusa Walker, 1917
  • Valvata tricarinata var. simplex Gould, 1841
  • Valvata tricarinata var. supracarinata Baker, 1921
  • Valvata tricarinata var. unicarinata De Kay, 1843
  • Valvata unicarinata De Kay, 1843

Valvata tricarinata, common name the three-ridge valvata or threeridge valvata, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.

Distribution

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This species occurs in North America.

Shell description

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There is great variation in the degree of carination of the shell.[4]

Paleontology

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Valvata tricarinata is abundant in nearly all lacustrine and fluviatile deposits in North America of the Pleistocene period. The fossil shells are more variable than the Recent ones.[4] Eight forms or subspecies were described.[4]

References

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This article incorporates public domain text from the reference.[4]

  1. ^ Seddon, M.B.; Lepitzki, D. (2017). "Valvata tricarinata". IUCN Red List of Threatened Species. 2017 e.T189129A80973880. doi:10.2305/IUCN.UK.2017-3.RLTS.T189129A80973880.en. Retrieved 18 November 2021.
  2. ^ NatureServe. "Valvata tricarinata". NatureServe Explorer. Arlington, Virginia. Retrieved 30 March 2026.
  3. ^ Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O (eds.). "Valvata tricarinata (Say, 1817)". MolluscaBase. World Register of Marine Species. Retrieved 11 April 2026.
  4. ^ a b c d Frank C. Baker. July 1921. New forms of Pleistocene molluks of Illinois. The Nautilus, volume 35, number 1, 22–24.
  • Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26
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