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Species of gastropod From Wikipedia, the free encyclopedia
Vertigo genesii, common name the round-mouthed whorl snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails.[3]
| Vertigo genesii | |
|---|---|
| |
| Drawing of the shell of Vertigo genesii. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Vertiginidae |
| Genus: | Vertigo |
| Species: | V. genesii |
| Binomial name | |
| Vertigo genesii | |
| Synonyms | |
| |
The shell is very small, ovate, obtuse, indistinctly, spaced striate, glossy purplish brown. The shell has 4½ whorls, that are rather convex, high, rapidly increasing, joined by a somewhat impressed suture, the penult large, almost ventricose. Umbilical opening is moderate.[4]
The aperture is semirotund, nearly quadratic, without any folds. Peristome is scarcely expanded, thickened liplike, bordered with bluish black, the margins are connected by a very weak callus, the right margin is arched at the insertion.[4]
The width of the adult shell is 1.03–1.20 mm, the height is 1.63–2.00 mm.[5]
The animal body color is raven-black. The tentacles are short, contracted in the middle.[4]
This species occurs in:
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