Viviparus contectus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Viviparus contectus
Species Authority: (Millet, 1813)
Common Name(s):
English Lister's river snail
Vivaparus brachya Bourguignat, 1880
Viviparus carniolica Bourguignat, 1880
Viviparus communis Bourguignat, 1880
Viviparus corcyrensis Kobelt, 1908
Viviparus croatica Kobelt, 1908
Viviparus dalmatica Kobelt, 1908
Viviparus isseli Bourguignat, 1880
Viviparus kormosi Kobelt, 1909
Viviparus listeri Forbes & Hanley, 1850
Viviparus russiensis Milachewitsch, 1881
Viviparus turrita Kobelt, 1909
Viviparus vera Frauenfeld, 1862
Taxonomic Notes: Kantor et al (2009) put this in the genus Contectiana  Bourguignat, 1880 following the volume of Fauna Ukraine, vol 29 however the majority of users still consider this to be a subgeneric level classification.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-03-05
Assessor(s): Van Damme, D., Kebapçı, U. & Seddon, M.
Reviewer(s): Bohm, M., Collen, B., Aldridge, D., Vavrova, L. & von Proschwitz, T.
Contributor(s): Cianfanelli, S., Manganelli, G., Giusti, F., Killeen, I., Moorkens, E., Vavrova, L., Offord, S., Duncan, C., Dyer, E., Soulsby, A.-M., Whitton, F., Kasthala, G., McGuinness, S., Milligan, HT, De Silva, R., Herdson, R., Thorley, J., McMillan, K., Collins, A., Seddon, M. & Richman, N.
The species is still widespread within its known range and is moderately pollution sensitive; however, there is evidence of decline in some parts of its range. It therefore requires efforts to reduce the impact of pollution, in order for the status of the species to improve. At present the rate of decline does not meet the thresholds for threatened species, although it may locally be threatened with extinction.

This species has been assessed at the regional level:
EU27 regional assessment:  Least Concern (This species is categorised as Least Concern in the 27 member states of the European Union)
European regional assessment:  Least Concern
Mediterranean regional assessment :  Least Concern

Geographic Range [top]

Range Description: Viviparus contectus is a Palearctic species, occurring over most of the European states in the west, north and east, but much rarer in southern Europe. It is widespread in northern and central Europe, and is recorded from the UK in west of the region, to northern countries of Sweden, Latvia, Estonia and Denmark, through to Germany, Switzerland, south to Italy, Slovenia and east to Greece and Bulgaria.This species is Palearctic in distribution extending to western Siberia (Welter-Schultes 2011). However, the species hybridises with V. ater, thus rendering identification difficult (Trüb and Ribi 1997). It is also spread across Europe via the aquarium trade (D. van Damme pers. comm. 2012).
Albania; Austria; Belgium; Bulgaria; Czech Republic; Denmark; Estonia; France (France (mainland)); Germany; Greece; Hungary; Italy (Italy (mainland)); Latvia; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Netherlands; Poland; Romania; Russian Federation (Kaliningrad); Slovakia; Sweden; Switzerland; United Kingdom (Great Britain)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species can live up to 13 years. Maturity is reached after 3 months for the spring generation and 8 months for the autumn generation (Welter-Schultes 2011). Despite its widespread distribution, population trends are currently thought to be decreasing in parts of its range.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This species lives in generally lentic habitats, in large slow-flowing rivers, large drainage ditches, fenland dykes, ditches on grazing marshes, and occasionally in large ponds and lakes (Welter-Schultes 2011).
Systems: Freshwater

Use and Trade [top]

Use and Trade: The species is collected for the aquarium trade (D. van Damme pers. comm. 2012).

Threats [top]

Major Threat(s): The main potential threats to the species are pollution of its habitats through eutrophication or other chemical sources – especially intensification of agriculture, alteration of water courses, changes to flow regimes, and over-frequent dredging – particularly of drainage ditches on grazing marsh complexes. The species is also collected for the aquarium trade (D. van Damme pers. comm. 2012).

Conservation Actions [top]

Conservation Actions: There are no conservation measurements in place. However, several subpopulations are in protected areas.

Citation: Van Damme, D., Kebapçı, U. & Seddon, M. 2012. Viviparus contectus. The IUCN Red List of Threatened Species. Version 2014.2. <>. Downloaded on 24 October 2014.
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