Acronyches Hermann, 1921 (original description)
Actigia Stechow, 1921 accepted as Coryne Gaertner in Pallas, 1774 (original description)
Agaporomorphus Zimmermann, 1921 (original description)
Anga Stechow, 1921 (original description)
Branchiaria Stechow, 1921 accepted as Branchiocerianthus Mark, 1898 (original description)
Carta Stechow, 1921 † (original description)
Caulitheca Stechow, 1921 accepted as Bonneviella Broch, 1909 (original description)
Chlorella Stechow, 1921 accepted as Haeckelia Carus in Carus & Gerstaecker, 1863 (original description)
Clathrozoella Stechow, 1921 (original description)
Eucalix Stechow, 1921 accepted as Campanularia Lamarck, 1816 (original description)
Galetta Stechow, 1921 accepted as Sulculeolaria Blainville, 1830 (original description)
Gastra Stechow, 1921 accepted as Lampea Stechow, 1921 (original description)
Hebomma Stechow, 1921 accepted as Bonneviella Broch, 1909 (original description)
Hemibidessus Zimmermann, 1921 (original description)
Heterotheca Stechow, 1921 accepted as Halopteris Allman, 1877 (original description)
Hydractomma Stechow, 1921 accepted as Podocoryna M. Sars, 1846 (original description)
Hydrissa Stechow, 1922 (original description)
Hydronema Stechow, 1921 accepted as Hydractinia van Beneden, 1844 (original description)
Lagenitheca Stechow, 1921 accepted as Sertularia Linnaeus, 1758 (original description)
Lampea Stechow, 1921 (original description)
Melittoides Friese, 1921 (original description)
Nigella Stechow, 1921 accepted as Dictyocladium Lamouroux, 1812 (original description)
Pareutima Stechow, 1921 accepted as Campanopsis Claus, 1881 accepted as Eirene Eschscholtz, 1829 (original description)
Polya Stechow, 1921 accepted as Lophocalyx Schulze, 1887 (original description)
Rivalisia Strand, 1921 (original description)
Stephomma Stechow, 1921 (original description)
Styla Stechow, 1921 (original description)
Stylactaria Stechow, 1921 accepted as Stylactis Allman, 1864 (original description)
Suphisellus Zimmermann, 1921 (original description)
Tulpa Stechow, 1921 accepted as Campanularia Lamarck, 1816 (original description)
Undotheca Stechow, 1921 accepted as Sertularia Linnaeus, 1758 (original description)