Vertigo arctica facts for kids

Quick facts for kids Vertigo arctica
Apertural view of a shell of Vertigo arctica
Conservation status
Near Threatened (IUCN 3.1)
Scientific classification
Synonyms
Pupa (Vertigo) eggeri Gredler, 1890 (junior synonym) Pupa arctica Wallenberg, 1858 Vertigo (Boreovertigo) arctica (Wallenberg, 1858) · alternate representation Vertigo (Boreovertigo) modesta arctica (Wallenberg, 1858) (superseded rank) Vertigo (Vertigo) arctica (Wallenberg, 1858) (incorrect subgeneric placement) Vertigo modesta arctica (Wallenberg, 1858) (superseded rank)

Vertigo arctica is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails.

Distribution

This species occurs in:

• Poland - critically endangered

Drawing of aperture of Vertigo arctica

Shell description

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.

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.

The width of the adult shell is about 2.5 mm, the height about 1.5 mm.