Vertigo lilljeborgi

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Vertigo lilljeborgi
Vertigo lilljeborgi shell.jpg
A damaged shell of Vertigo lilljeborgi
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Vertiginidae
Subfamily: Vertigininae
Genus: Vertigo
Species:
V. lilljeborgi
Binomial name
Vertigo lilljeborgi
(Westerlund, 1871) [1]
Synonyms
  • Pupa lilljeborgiWesterlund, 1871
  • Vertigo (Alaea) lilljeborgi(Westerlund, 1871) · alternate representation
  • Vertigo (Vertigo) lilljeborgi(Westerlund, 1871)

Vertigo lilljeborgi is a species of minute land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails. [2]

Contents

Subspecies

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]

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References

This article incorporates public domain text from reference. [3]

  1. ↑ 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).
  2. ↑ 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
  3. 1 2 3 4 5 6 Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 167–168.
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