Pionidae
Hydrochoreutes intermedius Cook, 1956
Hydrochoreutes krameri Piersig, 1896
Hydrochoreutes michiganensis Cook
Hydrochoreutes microporus Cook
Hydrochoreutes schizopetiolatus Cook
Hydrochoreutes ungulatus (Koch, 1836)
Hydrochoreutes virens Tuzovskij, 1977
Hydrochoreutes wolgaensis Tuzovskij, 2001
