| Vertigo lilljeborgi | |
|---|---|
| The shell of Vertigo lilljeborgi | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superfamily: | Pupilloidea |
| Family: | Vertiginidae |
| Subfamily: | Vertigininae |
| Tribe: | Vertiginini |
| Genus: | Vertigo |
| Subgenus: | Vertigo |
| Species: | V. lilljeborgi |
| Binomial name | |
| Vertigo lilljeborgi (Westerlund, 1871)[1] |
|
| Synonyms | |
|
Pupa lilljeborgi Westerlund, 1871 |
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Vertigo lilljeborgi is a species of minute land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the vertigo snails.
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The type locality is on the southern shore of Tresjön Lake, near Ronneby, Blekinge province, in Sweden.[2]
This species is known to occur in a number of countries and islands of Northern Europe including:
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.[2]
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.[2]
The width of the adult shell varies from 1.25 to 1.5 mm, the height from 2-2.25 mm.[2]
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.[2]
This article incorporates public domain text from reference [2].