Actigia Stechow, 1921 accepted as Coryne Gaertner, 1774 (original description)
Aglaophenia zelandica Stechow, 1921 accepted as Gymnangium longirostre (Kirchenpauer, 1872) (original description)
Astya Stechow, 1921 (original description)
Branchiaria Stechow, 1921 accepted as Branchiocerianthus Mark, 1898 (original description)
Branchiaria mirabilis Stechow, 1921 accepted as Branchiocerianthus mirabilis (Stechow, 1921) (original description)
Branchiocerianthus italicus Stechow, 1921 (original description)
Campomma Stechow, 1921 accepted as Eucheilota McCrady, 1859 (original description)
Candelabridae Stechow, 1921 (original description)
Candelabrinae Stechow, 1921 accepted as Candelabridae Stechow, 1921 (original description)
Carta Stechow, 1921 † (original description)
Carta pyramidata (Waagen & Wentzel, 1887) † (new combination reference)
Carterina Waagen & Wentzel, 1887 † accepted as Carta Stechow, 1921 † (basis of record)
Carterina pyramidata Waagen & Wentzel, 1887 † accepted as Carta pyramidata (Waagen & Wentzel, 1887) † (basis of record)
Clathrozoella Stechow, 1921 (original description)
Clathrozoidae Stechow, 1921 (original description)
Clathrozoinae Stechow, 1921 accepted as Clathrozoidae Stechow, 1921 (original description)
Coryne epizoica Stechow, 1921 (original description)
Distichoporinae Stechow, 1921 accepted as Stylasteridae Gray, 1847 (original description)
Errininae Stechow, 1921 accepted as Stylasteridae Gray, 1847 (original description)
Eucalix Stechow, 1921 accepted as Campanularia Lamarck, 1816 (original description)
Eudendrium elsae-oswaldae Stechow, 1921 accepted as Eudendrium elsaeoswaldae Stechow, 1921 accepted as Eudendrium ramosum (Linnaeus, 1758) (original description)
Galetta Stechow, 1921 accepted as Sulculeolaria Blainville, 1830 (original description)
Galetta australis (Quoy & Gaimard, 1833) accepted as Sulculeolaria biloba (Sars, 1846) (new combination reference)
Galettinae Stechow, 1921 accepted as Sulculeolariinae Totton, 1954 (original description)
Halocordylidae Stechow, 1921 accepted as Pennariidae McCrady, 1859 (original description)
Hydractomma Stechow, 1921 accepted as Podocoryna M. Sars, 1846 (original description)
Hydrissa Stechow, 1921 (original description)
Hydronema Stechow, 1921 accepted as Hydractinia Van Beneden, 1844 (original description)
Hydronema dendritica (Hickson & Gravely, 1907) accepted as Hydractinia dendritica Hickson & Gravely, 1907 (new combination reference)
Nemella minima (Thompson, 1879) accepted as Amphisbetia minima (Thompson, 1879) (basis of record)
Phylactothecidae Stechow, 1921 (original description)
Podocorella Stechow, 1921 accepted as Hydractinia Van Beneden, 1844 (original description)
Stylactaria Stechow, 1921 accepted as Stylactis Allman, 1864 (original description)
Stylactella (Hydractinia) accepted as Perarella Stechow, 1922 (basis of record)
Stylactella (Hydractinia) elseoswaldae Stechow, 1921 accepted as Perarella schneideri (Motz-Kossowska, 1905) (original description)
Sulculeolariinae Totton, 1954 (additional source)
Tulpa Stechow, 1921 accepted as Campanularia Lamarck, 1816 (original description)
Zyzzyzus Stechow, 1921 (original description)

Japanese Exclusive Economic Zone for Branchiocerianthus mirabilis (Stechow, 1921) 
Mediterranean Sea for Eudendrium elsae-oswaldae Stechow, 1921 
Mediterranean Sea for Stylactella (Hydractinia) elseoswaldae Stechow, 1921