Vertigo columbiana (Pilsbry and Vanatta 1900) Columbia Vertigo
Vertiginidae, ,Gastropoda, Mollusca, Animalia
Range: Common throughout most of western Washington; ranges from near sea level up to 1070 m.
Description: Columellar tooth not ascending inwardly; outer lip teeth not on a callus ridge; behind lip on outer surface no constriction between lip and crest; umbilicus minute.
Natural History: Found in deciduous leaf litter and red cedar litter, on the smooth bark of young bigleaf maples, and the underside of sword fern fronds.
Etymology: vertigo – whirling; from Columbian province.