Stylommatophora
Allogona Pilsbry, 1939
Appalachina Pilsbry, 1940
Ashmunella Pilsbry & Cockerell, 1899
Cryptomastix Pilsbry, 1939
Daedalochila Beck, 1837
Euchemotrema Archer, 1939
Fumonelix Emberton, 1991
Giffordius Pilsbry, 1930
Hochbergellus Roth & W. B. Miller, 1992
Inflectarius Pilsbry, 1940
Linisa Pilsbry, 1930
Lobosculum Pilsbry, 1930
Mesodon Rafinesque, 1831
Millerelix Pratt, 1981
Neohelix Ihering, 1892
Patera Albers, 1850
Polygyra Say, 1818
Praticolella von Martens, 1892
Prattelix Emberton, 1995
Stenosema Paetel, 1875
Stenotrema Rafinesque, 1819
Tredopsis Paetel, 1875
Trilobopsis Pilsbry, 1939
Triodopsis Rafinesque, 1819
Vespericola Pilsbry, 1939
Webbhelix Emberton, 1988
Xolotrema Rafinesque, 1819
