Monadeniidae

Epiphragmophoridae（英语：Epiphragmophoridae）, Humboldtianidae（英语：Humboldtianidae）, Monadeniidae（英语：Monadeniidae）, and Xanthonychidae. Tribes in the subfamily Helminthoglyptinae

Helminthoglyptidae Family Humboldtianidae Family Hygromiidae Family Monadeniidae Family Pleurodontidae Family Polygyridae Family Sphincterochilidae Family

Helminthoglyptidae Family Humboldtianidae Family Hygromiidae Family Monadeniidae Family Pleurodontidae Family Polygyridae Family Sphincterochilidae Family

Humboldtianidae（英语：Humboldtianidae） Family Hygromiidae（英语：Hygromiidae） Family Monadeniidae（英语：Monadeniidae） 高腰蝸牛科 Pleurodontidae Family Polygyridae（英语：Polygyridae） Family

Helicodontidae 扁雕蜗牛科（Helminthoglyptidae） Humboldtianidae 嗜石螺科（Hygromiidae） Monadeniidae 肋齿螺科（Pleurodontidae） 多圆螺科（Polygyridae） Sphincterochilidae Thysanophoridae