Acanthomyites Cockerell, 1921 † (original description)
Amonophadnus Rohwer, 1921 (original description)
Blakeanus Wilson, 1921 accepted as Botryllophilus Hesse, 1864 (original description)
Ceratostizus Rohwer, 1921 (original description)
Characilepis Cockerell, 1921 † (original description)
Chasmaporthetes Hay, 1921 † (original description)
Coeloidina Viereck, 1921 (original description)
Crematoxenus Mann, 1921 (original description)
Cromaphya Rohwer, 1921 (original description)
Dinidorites Cockerell, 1921 † (original description)
Hyostrongylus Hall, 1921 (original description)
Loa Jordan, 1921 accepted as Chaetodon Linnaeus, 1758 (original description)
Nyctimaster Jordan, 1921 accepted as Lampanyctus Bonaparte, 1840 (original description)
Oslerus Hall, 1921 (original description)
Rhechias Jordan, 1921 accepted as Bathycongrus Ogilby, 1898 (original description)
Rhyacanthias Jordan, 1921 accepted as Symphysanodon Bleeker, 1878 (original description)
Thaumastocladius Cockerell & Sandhouse, 1921 † (original description)
Tilgidopsis Cockerell, 1921 † (original description)
Trichiogorytes Rohwer, 1921 (original description)
Vesposus Jordan, 1921 accepted as Grammicolepis Poey, 1873 (original description)
Zasenoclia Rohwer, 1921 (original description)