Arawakina Hebard, 1926 (original description)
Architeconica Stewart, 1926 accepted as Architectonica Röding, 1798 (original description)
Aulocofusus Stewart, 1926 accepted as Aulacofusus Dall, 1918 (original description)
Chiliborus Pilsbry, 1926 (original description)
Chosenelix Pilsbry, 1927 (original description)
Cophocara Stewart, 1926 † (original description)
Dasyostoma Stewart, 1927 † (original description)
Eulissosoma Hebard, 1926 (original description)
Eupsadara Pilsbry, 1926 (original description)
Galibia Hebard, 1926 accepted as Cahita Hebard, 1922 (original description)
Galiblatta Hebard, 1926 (original description)
Gonionenia Pilsbry, 1926 (original description)
Lithophysema Stewart, 1927 † (original description)
Maraca Hebard, 1926 (original description)
Metadrymaeus Pilsbry, 1926 (original description)
Mexicodiscus Pilsbry, 1926 (original description)
Microborus Pilsbry, 1926 accepted as Austroborus Parodiz, 1949 (original description)
Mirascapha Stewart, 1927 † (original description)
Nekewis Stewart, 1927 † (original description)
Neniatracta Pilsbry, 1926 (original description)
Neniops Pilsbry, 1926 (original description)
Noetca Stewart, 1927 † (original description)
Occultator Pilsbry, 1926 (original description)
Olequahia Stewart, 1927 † (original description)
Orodrymaeus Pilsbry, 1926 (original description)
Palaeorhaphis Stewart, 1927 † accepted as Exilia Conrad, 1860 (original description)
Perissitys Stewart, 1927 † (original description)
Plectocion Stewart, 1927 † (original description)
Rotadiscus Pilsbry, 1926 (original description)
Steatonenia Pilsbry, 1926 (original description)
Tairella Hebard, 1926 (original description)
Whitneyella Stewart, 1927 † (original description)