clade Euthyneuraclade Panpulmonata clade Eupulmonata clade Stylommatophora The boreal top or boreal top snail (Zoogenetes harpa) is species of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Valloniidae, and the sole species in the genus Zoogenetes.

Z. harpa occurs in the northern United States, across Canada, as well as in Scandinavia, the Swiss Alps, Russia, and Japan.

[2][3] Z. harpa is most active during fall and spring, when temperatures are more mild and moisture levels are higher.

[4] Z. harpa occurs in the northern United States and across Canada,[8] and was discovered in the Uinta Mountains in northeastern Utah in April 2021, where it is now considered "likely native".

[2][3] Predators of Z. harpa include small mammals, insects, and birds such as wild turkeys and grouse.