Vertigo ronnebyensis is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails.MolluscaBase eds. (2023). MolluscaBase. Vertigo ronnebyensis (Westerlund, 1871). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1050672 on 2023-02-11
Shell description The shell is deeply perforate, long-ovate, regularly finely striate, very glossy and reddish-brown in color. The shell has 5½ convex whorls. The last whorl is about equal to the penult, which is a third higher than the preceding whorl, which is double the height of the next earlier. Last whorl has a transverse callus of the same color near the aperture. Suture is very oblique, ascending to the aperture.
Aperture is quite obliquely piriform, excised by the very oblique parietal wall. Aperture has 4 teeth: 1 parietal lamella, 1 conic tooth at the lower end of the sharply emerging, dark-colored columella; 2 short, widely separated, deeply immersed palatal folds. Margins are delicately united, the outer margin is weakly arcuate, nearly straight, the columellar margin is broadly reflected.
The width of the adult shell is 1.15-1.35 mm, the height is 2.0-2.35 mm.Species summary for Vertigo ronnebyensis. AnimalBase, accessed 23 June 2009.
Distribution This species occurs in: Fennoscandia: Sweden, Norway, Denmark, and Finland Baltic states: Estonia, Latvia, and Lithuania Northwestern Russia: Kaliningrad Central Europe: Germany, Czech Republic, Poland
Habitat This species lives in forests, often in association with Vaccinium and preferably on acidic soils.
References This article incorporates public domain text from reference.Pilsbry H. A. & Cooke C. M. 1918–1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. pages 192–193.
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017
External links
Westerlund, C. A. (1871). Exposé critique des mollusques de terre et d'eau douce de la Suède et de la Norvége. Nova Acta Societatis Regiae Scientiarum Upsaliensis. series 3, 8, 1 (1): 1–200. Uppsala (BERLING)