| Vertigo arctica | |
|---|---|
| Shell of Vertigo arctica | |
| Conservation status | |
|
NE[1]
|
|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superfamily: | Pupilloidea |
| Family: | Vertiginidae |
| Subfamily: | Vertigininae |
| Tribe: | Vertiginini |
| Genus: | Vertigo |
| Subgenus: | Vertigo |
| Species: | V. arctica |
| Binomial name | |
| Vertigo arctica (Wallenberg, 1858)[2] |
|
| Synonyms | |
|
Pupa arctica Wallenberg, 1858 |
|
Vertigo arctica (Wallenberg, 1858) is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae.
Shell is dextral, rimate, ovate, thin, smoothish, somewhat glossy, pellucid, brownish-tawny. The shell has 5 to 5 ½ whorls, convex, the last nearly two-fifths the altitude, rounded at base, anteriorly having a somewhat swollen crest.[4]
Aperture is slightly oblique, semiovate or piriform, obstructed by 3 teeth: in the middle of the parietal wall, on the columella, and a smaller one in the palate (frequently wanting). Peristome is spreading, slightly labiate, the margins joined by a callus, the right margin very strongly curved above, columellar margin is somewhat dilated, spreading.[4]
The width of the adult shell varies is 2.5 mm, the height from 1.5 mm.[4]
This article incorporates public domain text from reference [4].