Gyraulus (Gyraulus) trochiformis (Stahl, 1824) † represented as Gyraulus trochiformis (Stahl, 1824) † (status source)
Gyraulus distortus (Hyatt, 1880) † (additional source)
Gyraulus trochiformis elegantulus Wenz, 1930 † accepted as Gyraulus trochiformis (Stahl, 1824) † (source of synonymy)
Helicites trochiformis Stahl, 1824 † accepted as Gyraulus trochiformis (Stahl, 1824) † (new combination reference)
Paludina multiformis var. turbiniformis Zieten, 1832 † accepted as Gyraulus trochiformis (Stahl, 1824) † (source of synonymy)
Planorbis costatus Klein, 1846 † accepted as Gyraulus costatus (Klein, 1846) † (new combination reference)
Planorbis costatus var. distortus Hyatt, 1880 † accepted as Gyraulus distortus (Hyatt, 1880) † (status source)
Planorbis multiformis var. aequeumbilicatus Hilgendorf, 1867 † (source of synonymy)
Planorbis multiformis var. crescens Hilgendorf, 1867 † accepted as Gyraulus crescens (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. denudatus Hilgendorf, 1867 † accepted as Gyraulus denudatus (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. elegans Hilgendorf, 1867 † accepted as Gyraulus trochiformis (Stahl, 1824) † (source of synonymy)
Planorbis multiformis var. minutus Hilgendorf, 1867 † accepted as Gyraulus subhemistoma (A. d'Orbigny, 1852) † (additional source)
Planorbis multiformis var. parvus Hilgendorf, 1867 † accepted as Gyraulus steinheimensis (Hilgendorf, 1867) † (source of synonymy)
Planorbis multiformis var. pseudotenuis Hilgendorf, 1867 † accepted as Gyraulus pseudotenuis (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. revertens Hilgendorf, 1867 † accepted as Gyraulus revertens (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. steinheimensis Hilgendorf, 1867 † accepted as Gyraulus steinheimensis (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. sulcatus Hilgendorf, 1867 † accepted as Gyraulus planorbiformis (Zieten, 1832) † (source of synonymy)
Planorbis multiformis var. supremus Hilgendorf, 1867 † accepted as Gyraulus supremus (Hilgendorf, 1867) † (status source)
Planorbis multiformis var. tenuis Hilgendorf, 1867 † accepted as Gyraulus steinheimensis (Hilgendorf, 1867) † (source of synonymy)
Planorbis multiformis var. triquetrus Hilgendorf, 1867 † accepted as Gyraulus triquetrus (Hilgendorf, 1867) † (status source)
Planorbis oxystoma Klein, 1846 † accepted as Gyraulus oxystoma (Klein, 1846) † (new combination reference)
Valvata multiformis var. rotundata Klein, 1846 † accepted as Gyraulus trochiformis (Stahl, 1824) † (source of synonymy)