Species of gastropod
Vertigo lilljeborgi is a species of small land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.[2]
- Subspecies
- Vertigo lilljeborgi lilljeborgi (Westerlund, 1871)
- Vertigo lilljeborgi vinlandica Nekola, Chiba, Coles, Drost, Proschwitz & Horsák, 2018
Distribution
The type locality for this species is on the southern shore of Tresjön Lake, near Ronneby, Blekinge province, in Sweden.[3]
This species is known to occur in a number of countries and islands in Northern Europe including:
Shell description
The shell is ventricose, ovate, strongly glossy, very finely striate, chestnut horn-color. The shell has 5 whorls, rather rapidly increasing, convex, the last but little higher than the penult, double as high as the next earlier whorl, a little ascending in front. Suture is slightly oblique.[3]
Aperture is quite piriform, or obliquely cordate, with 1 parietal tooth (sometimes with another punctiform one), 2 columellar teeth, the lower very small, often wanting; 2 short, high, equal, immersed teeth
in the palate, bounded by a reddish-brown streak in front. Peristome is weak, expanded, the margins delicately united; outer margin not impressed, scarcely produced angularly forward.[3]
The width of the adult shell varies from 1.25 to 1.5 mm, the height from 2-2.25 mm.[3]
Vertigo lilljeborgi, compared with Vertigo moulinsiana, is much smaller, more glossy, its whorls are more tumid, and its thinner lip lacks the broad, almost colorless margin of the latter.[3]
References
This article incorporates public domain text from reference.[3]
- ^ Westerlund C. A. 1871. Exposé critique des mollusques de terre et d'eau douce de la Suède et de la Norvége. pp. [1-2], 1-200. Upsal. (Berling).
- ^ MolluscaBase eds. (2023). MolluscaBase. Vertigo lilljeborgi (Westerlund, 1871). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1050668 on 2023-02-10
- ^ a b c d e f Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 167–168.
- Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017.
External links
