Vertigo pygmaea (*)
Vertigo pygmaea, common name the "crested vertigo", is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae.
Aperture is scarcely longer than wide, and nearly round, furnished with 4 teeth, of which the superior is acute, two deeply placed inferior, and finally one on the columellar margin. A fifth tooth is often found in the base of the aperture. The lateral margin is slightly angular in the middle. Peristome is reflected below. Umbilical crevice quite pronounced.
This snail lives under hedges.
* Czech Republic
* Michigan - special concern, see List of threatened fauna of Michigan
This article incorporates public domain text from reference .
1. ^ IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 26 August 2008.
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