Vertigo gouldii
Vertigo gouldii, common name the variable vertigo, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails.
;Subspecies:Vertigo gouldii arizonensis Pilsbry & Vanatta, 1900Vertigo gouldii coloradoensis Vertigo gouldii inserta Pilsbry, 1919