Narrow-mouthed Whorl Snail
Vertigo angustior
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Vertigo_angustior
Taxonomy & Classification
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Stylommatophora
Family
Vertiginidae
Genus
Vertigo
Narrow-mouthed Whorl Snail belongs to the family Vertiginidae, order Stylommatophora, within the Gastropoda class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
The Narrow-mouthed Whorl Snail faces severe threats from habitat loss and degradation of its specialized wetland environments. Agricultural intensification, drainage of fens and marshes, and changes in water management practices have dramatically reduced suitable habitat across its range, while climate change poses additional risks through altered precipitation patterns and temperature regimes.
Key Facts
Habitat & Distribution
Inhabits calcareous fens, wet meadows, marshes, and other permanently moist grassland habitats with high calcium content. Requires specific microhabitats with consistent moisture levels and alkaline conditions, typically found in areas with groundwater seepage or near springs.
Threats
IUCN Red List: Critically Endangered
The Narrow-mouthed Whorl Snail faces severe threats from habitat loss and degradation of its specialized wetland environments. Agricultural intensification, drainage of fens and marshes, and changes in water management practices have dramatically reduced suitable habitat across its range, while climate change poses additional risks through altered precipitation patterns and temperature regimes.
Agricultural intensification and pesticide use
Climate change impacts on moisture regimes
Habitat loss from agricultural conversion
Wetland drainage and water management changes
Habitat fragmentation
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | VUVulnerable | CRCritically Endangered | Lower local risk |
| EU | VUVulnerable | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Narrow-mouthed Whorl Snail (Vertigo angustior). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/narrow-mouthed-whorl-snail