Henrigirardia wienini 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Moitessieriidae

Scientific Name: Henrigirardia wienini
Species Authority: (Girardi, 2001)
Taxonomic Notes: This is a recently described taxon which is endemic to type locality. It has never been found alive. It was previously described in the genus Moitessieria,  then a new genus Henrigirardia was created by Boeters & Falkner (2003).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered () B1ab(iii) ver 3.1
Year Published: 2010
Date Assessed: 2009-11-06
Assessor(s): Prie, V.
Reviewer(s): Gargominy, O., Seddon, M.B. & Cuttelod, A.
Henrigirardia wienini is endemic to a single cave in the Hérault valley in southern France. This locality may be threatened by lowering of the groundwater level though over abstraction of groundwater for water supplies. This species has never been found alive and could already be extinct. It is classified as Critically Endangered (Possibly Extinct).

Geographic Range [top]

Range Description: Henrigirardia wienini is endemic to a single cave in the Hérault valley in southern France.
Countries occurrence:
Possibly extinct:
France (France (mainland))
Estimated area of occupancy (AOO) - km2: 29
Number of Locations: 1
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no population trend data available for this species. This species has never been found alive and could already be extinct.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species lives in subterranean waters.
Systems: Freshwater
Continuing decline in area, extent and/or quality of habitat: Yes

Threats [top]

Major Threat(s): Subterranean habitats are vulnerable to water pollution from domestic (sewage and run-off) or agricultural (nutrient loads, herbicide and pesticides) sources. Water extraction and impacts lowering groundwater table maybe another threat if the aquifers are overexploited. Concerning the cave where H. wienini lives (if it is still living), the water is abstracted for domestic purposes. Agricultural and housing are very limited in the area, so pollution in probably not an important threat at the moment.

Conservation Actions [top]

Conservation Actions: Conservation actions are not in place for this species.  Further survey data are required to establish if this cryptic species is still extant, and  thereafter monitoring to establish any decline in habitat quality. Some species may require a review to decide whether any restrictions on drawdown would be required to maintain suitable habitat if the species is still present.

Citation: Prie, V. 2010. Henrigirardia wienini. The IUCN Red List of Threatened Species 2010: e.T156028A4893332. . Downloaded on 25 November 2015.
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