Overview

Distribution

Range Description

This small gastropod is found in brackish areas throughout the Atlantic and western Mediterranean coasts. Fauna Europea (Bank et al. 2006) report the species from Republic of Ireland (Eire) Great Britain (UK), Northern Ireland (UK), Netherlands, Belgium, France (mainland), Canary Islands (Spain), Azores (Portugal), Madeira (Portugal), Italy (mainland), Sardinia (Italy), Sicily (Italy), Malta, Balearic Islands (Spain), Spain (mainland) and Portugal (mainland).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found in brackish waters in estuaries and salt-marshes.

Systems
  • Freshwater
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Seddon, M.B. & Killeen, I.

Reviewer/s
von Proschwitz, T., Aldridge, D., Richman, N., Cuttelod, A. & Nichols, C.

Contributor/s

Justification
Given the present range it is unlikely to be threatened with extinction in the near future. Whilst there are localized species declines throughout the range, the species is one of the more abundant species and is mainly threatened by habitat loss and so it is considered Least Concern (LC) overall.

This species has also been assessed at the regional level as:
EU27 regional assessment: Least Concern (LC) at the level of the 27 member states of the European Union
European regional assessment: Least Concern (LC).
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Population

Population
There is no data on population trends, although the species is generally frequent where present.

Population Trend
Unknown
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Threats

Major Threats
There are no specific threats across the range of this species, but localized threats due to loss of habitats from land reclamation in estuaries (for industrial units and marinas) and water pollution from industrial sources (shipping).
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Management

Conservation Actions

Conservation Actions
In most countries this species is not considered to be of conservation interest. No species specific conservation actions are in place. Research actions include further research to monitor future changes in habitats, as a proxy for changing populations.
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Wikipedia

Leucophytia bidentata

Leucophytia bidentata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.

Description[edit]

For terms see gastropod shell.

The shell is 5-7 mm. high x 2-4 mm.wide. It is either white or horny to reddish brown and the shell has 6-7 very weakly convex whorls.The last whorl is 75% of the shell height and the apex is pointed.The aperture has a white layer at the parietal side, the parietalis (the spiral ridge on the parietal region projecting into the interior of the shell) is usually strong.The columellaris (or internal lip of the shell aperture) is moderately or indistinctly developed. There is no umbilicus.

Biology[edit]

This species of snail is semi-marine in habitat.

a shell of Leucophytia bidentata

Distribution[edit]

This species is found on the coasts of the eastern Atlantic Ocean:

and the Mediterranean Sea:

Common name[edit]

The two-toothed white snail.

References[edit]

  1. ^ Montagu G. (1808). Supplement to Testacea Britannica. pp. [1], i-v [= 1-5], 1-183, Pl. 17-30. London.
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