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    Theodoxus fluviatilis - Wikipedia

    Theodoxus fluviatilis, common name the river nerite, is a species of small freshwater and brackish water snail with a gill and an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites. This widely distributed neritid snail species occurs from Europe to Central Asia. It has a thick shell … See more

    Theodoxus fluviatilis was originally described under the name Nerita fluviatilis by Carl Linnaeus in 1758. Linnaeus' original text (the type description) in Latin was very short, and … See more

    Description image

    The shell of Theodoxus fluviatilis is somewhat depressed (with an usually low spire), strongly calcified, and has 3–3.5 whorls (including the protoconch). Larger specimens are … See more

    Habitat
    Theodoxus fluviatilis prefers lowland habitats (in Switzerland it occurs up to 275 m a.s.l.) and calcium-rich waters. This small snail inhabits the central and lower parts of rivers (up to 13 m deep), including in See more

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    Distribution image

    The exact type locality for this species is unknown, but it is probably the Main river in Southern Germany. Glöer (2002) considered the type locality sensu Linnaeus as "Habitat in fluviis, Upsaliae ad molendinam Ulvam & alibi", but this would suggest a brackish … See more

    Ecology image

    • Bondesen, P (1940). "Preliminary investigations into the development of Neritina fluviatilis L. in brackish and fresh waters". … See more

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  2. ADW: Theodoxus fluviatilis: INFORMATION

    WEBTheo­doxus flu­vi­atilis is con­sid­ered Ho­l­arc­tic, oc­cur­ring in both the Nearc­tic and Palearc­tic bio­geo­graphic re­gions. How­ever, they are more com­monly seen in the Palearc­tic re­gion, spread­ing far west to Eng­land, …

  3. Theodoxus fluviatilis’ re-establishment in the River Rhine: a native ...

  4. Zoetwaterneriet - Wikipedia

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    The endangered freshwater snail Theodoxus fluviatilis is a widely distributed European member of the gastropod family Neritidae. This taxon was abundantly found in the River Rhine until the end of the 20th century, and was considered to be extinct there since the late 1990s.
    Theodoxus fluviatilis develops in a similar manner as most other gastropods, however, the snail develops within the egg, so there is no larval form. The shell forms as the egg is developing. Initially, the mouth is anterior and the anus is posterior.
    The species was found in population densities of up to 9000 snails per m² in a spring of the Anços river in Central Portugal, where there is a stable temperature of 15.3–16.6 °C, which allows continuous reproduction in Theodoxus fluviatilis. At Gabčíkovo port, in September 2003, a density of 34,932 juvenile snails per m² was recorded.
    Morphological and ecological features of Theodoxus fluviatilis (Linnaeus, 1758) from Baltic brackish water and German freshwater populations.
  6. A draft genome of the neritid snail Theodoxus fluviatilis - Oxford …

  7. (PDF) Theodoxus fluviatilis' re-establishment in the River Rhine: a ...

  8. The Danubian cryptic invader Theodoxus fluviatilis (Gastropoda ...

  9. Theodoxus fluviatilis - Wikiwand

  10. Theodoxus - Wikipedia

  11. | Nederlands Soortenregister - Nederlandse soorten