Anthemiphyllia patella Gerth, 1921 † (original description)
Anthemiphyllia verbeeki Gerth, 1921 † accepted as Pattalophyllia verbeeki (Gerth, 1921) † (original description)
Antillia grandiflora Gerth, 1921 † accepted as Cynarina lacrymalis (Milne Edwards & Haime, 1849) (original description)
Antillia infundibuliformis Gerth, 1921 † accepted as Trachyphyllia geoffroyi (Audouin, 1826) (original description)
Antillia orientalis Gerth, 1921 † accepted as Trachyphyllia geoffroyi (Audouin, 1826) (original description)
Astrocoenia minutissima Gerth, 1921 † accepted as Actinastrea minutissima (Gerth, 1921) † (original description)
Balanophyllia complanata Gerth, 1921 † (original description)
Balanophyllia variabilis Gerth, 1921 † accepted as Balanophyllia (Balanophyllia) javaensis Cairns, 2001 † (original description)
Bathyactis eocaenica Gerth, 1921 † accepted as Fungiacyathus (Bathyactis) eocaenica (Gerth, 1921) † (original description)
Caryophyllia clavus var. javana Gerth, 1921 † (original description)
Comoseris javana Gerth, 1921 † accepted as Pachyseris javana (Gerth, 1921) † (original description)
Confusastrea obsoleta Gerth, 1921 † accepted as Confusastraraea obsoleta (Gerth, 1921) † (original description)
Conosmilia sundaiana Gerth, 1921 † accepted as Indosmilia sundaiana (Gerth, 1921) † (original description)
Cyphastraea gemmulifera Gerth, 1921 † accepted as Cyphastrea gemmulifera Gerth, 1921 † (original description)
Deltocyathus australis Gerth, 1921 † accepted as Peponocyathus australiensis (Duncan, 1870) (original description)
Dendrophyllia rutteni Gerth, 1921 † (original description)
Dictyaraea micrantha var. spinosa Gerth, 1921 † accepted as Dictyaraea micrantha Reuss, 1866 † (original description)
Diplohelia malayica Gerth, 1921 † accepted as Enallopsammia malayica (Gerth, 1921) † (original description)
Echinopora crassatina Gerth, 1921 † (original description)
Flabellum variabile f. alta Gerth, 1921 † (original description)
Fungia (Cycloseris) Milne Edwards & Haime, 1849 accepted as Cycloseris Milne Edwards & Haime, 1849 (new combination reference)
Fungia (Cycloseris) patella (Ellis & Solander, 1786) accepted as Cycloseris fragilis (Alcock, 1893) (additional source)
Fungia (Cycloseris) patella f. hemispherica Gerth, 1921 † accepted as Cycloseris fragilis (Alcock, 1893) (original description)
Fungia decipiens (Martin, 1880) † accepted as Cycloseris decipiens Martin, 1880 † (new combination reference)
Fungia patella f. hemispherica Gerth, 1921 † accepted as Cycloseris fragilis (Alcock, 1893) (original description)
Galaxea junghuhni Gerth, 1921 † (original description)
Goniastraea progoensis Gerth, 1921 † accepted as Goniastrea progoensis (Gerth, 1921) † (original description)
Heterocyathus rembangensis Gerth, 1921 † accepted as Heterocyathus aequicostatus Milne Edwards & Haime, 1848 (original description)
Heterocyathus rousseaui (Milne Edwards & Haime, 1857) accepted as Heterocyathus aequicostatus Milne Edwards & Haime, 1848 (new combination reference)
Heterocyathus sandalinus Gerth, 1921 † accepted as Heterocyathus aequicostatus Milne Edwards & Haime, 1848 (original description)
Hydnophyllia martini Gerth, 1921 † (original description)
Indophyllia Gerth, 1921 † (original description)
Indophyllia cylindrica Gerth, 1921 † (original description)
Javanoseris Gerth, 1921 † accepted as Cycloseris Milne Edwards & Haime, 1849 (original description)
Javanoseris sinuata Gerth, 1921 † accepted as Cycloseris sinuata (Gerth, 1921) † (original description)
Lithophyllia explanata Gerth, 1921 † accepted as Fungophyllia explanata (Gerth, 1921) † (original description)
Lithophyllia spinosa Gerth, 1921 † accepted as Scolymia spinosa (Gerth, 1921) † (original description)
Lithophyllia verbeeki Gerth, 1921 † accepted as Cynarina lacrymalis (Milne Edwards & Haime, 1849) (original description)
Madrepora fennemai Gerth, 1921 † accepted as Acropora fennemai (Gerth, 1921) † (original description)
Montipora dubiosa Gerth, 1921 † (original description)
Montlivaultia javana Gerth, 1921 † accepted as Petrophylliella javana (Gerth, 1921) † (original description)
Notocyathus venustus (Alcock, 1902) (additional source)
Pachyseris vandijki Gerth, 1921 † (original description)
Placosmilia panovani Gerth, 1921 † (original description)
Polysolenia Reuss, 1866 † accepted as Octotremacis Gregory, 1900 † (additional source)
Polysolenia hochstetteri Reuss, 1866 † accepted as Octotremacis hochstetteri (Reuss, 1866) † (basis of record)
Prionastraea borneensis Gerth, 1921 † accepted as Favites borneensis (Gerth, 1923) † (original description (unavailable nomenclaturally))
Prionastraea inaequiseptata Gerth, 1921 † accepted as Platygyra inaequiseptata (Gerth, 1921) † (original description)
Seriatopora irregularis Gerth, 1921 † (original description)
Solenastrea semarangensis Gerth, 1921 † (original description)
Sphenotrochus viola (Duncan, 1864) accepted as Notocyathus conicus (Alcock, 1902) (new combination reference)
Stylophora sokkohensis Gerth, 1921 † (original description)
Synaraea javana Gerth, 1921 † accepted as Porites amplectans Felix, 1921 † (original description)