| Narrow-mouthed whorl snail | |
|---|---|
| |
| Six shells of Vertigo angustior, scale bar in mm | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Stylommatophora |
| Family: | Vertiginidae |
| Subfamily: | Vertigininae |
| Genus: | Vertigo |
| Species: |
V. angustior
|
| Binomial name | |
| Vertigo angustior | |
| Synonyms | |
| |
Vertigo angustior, the narrow-mouthed whorl snail, is a species of minute land snail, a terrestrial pulmonate gastropod molluskormicromollusk in the family Vertiginidae, the whorl snails.[3]
The shell measures 1.6 to 2.0 mm (mean: 1.8 mm) in height and 0.9 1.05 mm (mean: 1 mm) in width. It is oblong ovoid with 4.5 to 5.35 whorls (mean 5). The aperture is sinistral and relatively small. The aperture edge is bent (indented) and slightly thickened and the aperture is slightly notched, the notch continuing outside as a spiral groove. The aperture bears 5-6 mainly short denticles: 2 parietal; 2 columellar; 1 palatal, the latter relatively long. The shell is brown to yellowish brown or horn coloured and has a fine growth striation.
The species occurs in many countries in Europe and in Asia:[1]
Western Europe:
Central Europe:
Northern Europe: Denmark, Finland, Norway, Sweden
Eastern Europe: Belarus, Estonia, Latvia, Lithuania, Russian Federation, Ukraine
Southern Europe: Italy, Romania
Asia: Armenia, Azerbaijan, Georgia.
| Vertigo angustior |
|
|---|---|
