Vertigo (Vertigo) substriata (JEFFREYS, 1833)

Shell: Dextrous, whorls 4.0-4.7, most often 4.5. Shape short ovate, spire rounded. Whorls mostly strongly convex, suture deep. Aperture nearly semicircular. Teeth 5-7: columellar, on shape of a short fold or a knob; parietal and angular. bot lamellate; upper and lower palatal; suprapalatal and basal. Umbilicus shallow, closed. Surface sculpture of strong, regular, rib-like striae. Colour light: horny-yellow to yellowish-brown, crest lighter, teeth white or whitish.
Dimensions: Height 1.48-1.98 mm, breadth 0.95-1.17 mm, aperture height 0.40-0.47 mm, aperture breadth 0.50-0.70, body whorl height 0.90-1.10.
Ecology: A species living in humid places in mixed, deciduous (Central Europe) and also coniferous (Northern Europe) forests; sometimes found also in humid, half-open or open habitats (stream banks, with rich herb vegetation, meadows, marshy grassland, fens).
Distribution: A European species, its numerous locatities are scattered over a large part of Europe. In Scandinavia to 68°, in Finland to 65°, recorded also from Denmark and the British Isles, reaching to Ireland in the west; Germany, Netherlands, Belgium, France, Switzerland, Austria, Czechoslovakia, northern part of Hungary; in the east to northern Caucasus and an isolated fragment of the range in Altai. In the mountains of Central Europe the species reaches ca. 1000 m a.s.l., on the other hand in the mountains of northern Scandinavia it was found up to 690 m a.s.l. Not rare in any of the studied regions of Poland but never very abundand.