Cephaloceroidea Diesing, 1850 (original description)
Distigma helluo (Müller, 1773) Diesing, 1850 accepted as Turbella helluo (Müller, 1773) Diesing, 1862 accepted as Dalyellia helluo (Müller, 1773) Johnston, 1865 accepted as Vortex helluo (Müller, 1773) Hallez, 1894 accepted as Dalyellia viridis (Shaw, 1791) Graff, 1905 (new combination reference)
Gnesioceros mertens (Diesing, 1850) accepted as Gnesioceros sargassicola (Mertens, 1833) (original description)
Gyrator croceus (Fabricius, 1826) Diesing, 1850 accepted as Graffiellus croceus (Fabricius, 1826) Hornung, 2016 (new combination reference)
Gyrator leucophraeus (Fabricius, 1826) Diesing, 1850 accepted as Macrorhynchus leucophraeus (Fabricius, 1826) Graff, 1882 accepted as Polycystis leucophraeus (Fabricius, 1826) Graff, 1905 (new combination reference)
Gyrator littoralis (Örsted, 1843) Diesing, 1850 accepted as Provortex littoralis (Örsted, 1843) Graff, 1882 (new combination reference)
Gyrator suboviformis (Ørsted, 1843) Diesing, 1850 accepted as Graffiellus croceus (Fabricius, 1826) Hornung, 2016 (new combination reference)
Gyrator vittatus (Frey & Leuckart, 1847) Diesing, 1862 accepted as Vortex vittatus Frey & Leuckart, 1847 accepted as Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 (new combination reference)
Hypostomum viride (Shaw, 1791) Schmidt, 1848 accepted as Vortex viridis (Shaw, 1791) Schultze, 1851 accepted as Vortex helluo (Müller, 1773) Hallez, 1894 accepted as Dalyellia viridis (Shaw, 1791) Graff, 1905 (additional source)
Mesostoma bistrigatum (Fabricius, 1826) Diesing, 1850 (new combination reference)
Mesostomum lingua (Abildgaard, 1789) Schmidt, 1848 accepted as Mesostoma lingua (Abildgaard, 1789) Schmidt, 1848 (additional source)
Mesostomum radiatum (Müller, 1773) Diesing, 1850 accepted as Turbella radiata (Müller, 1773) Diesing, 1862 accepted as Strongylostoma radiatum (Müller, 1773) Örsted, 1843 (new combination reference)
Planaria emarginata Fabricius, 1826 accepted as Vortex cavifrons Jensen, 1878 accepted as Provortex balticus (Schultze, 1851) Graff, 1882 (additional source)
Schizostomum productum Schmidt, 1848 accepted as Mesostomum productum (Schmidt, 1848) Leuckart, 1854 accepted as Mesostoma productum (Schmidt, 1848) Leuckart, 1854 (additional source)
Temnocephala chilensis (Moquin-Tandon, 1846) Blanchard, 1849 (additional source)
Tetracelis fontana (Schrank, 1803) Diesing, 1850 accepted as Vortex fontanus (Schrank, 1803) Diesing, 1862 accepted as Planaria fontana Schrank, 1803 (new combination reference)
Tetracelis marmorata accepted as Tetracelis marmorosa (Müller, 1774) Ehrenberg, 1831 (additional source)
Tetracelis mytili (Ørsted, 1843) Diesing, 1850 accepted as Vortex mytili (Ørsted, 1843) Diesing, 1862 accepted as Enterostomum mytili (Ørsted, 1843) Graff, 1882 (new combination reference)
Turbella assimilis (Fabricius, 1826) Diesing, 1850 accepted as Cylindrostoma assimile (Fabricius, 1826) Jensen, 1878 accepted as Provortex affinis (Jensen, 1878) Graff, 1882 (new combination reference)
Turbella schmidtiana Diesing, 1850 accepted as Derostoma schmidtianum (Diesing, 1850) Schultze, 1851 accepted as Derostoma unipunctatum Ørsted, 1843 accepted as Phaenocora unipunctata (Ørsted, 1843) Bendl, 1908 (original description)
Turbella unipunctata (Ørsted, 1843) Diesing, 1850 accepted as Derostoma unipunctatum Ørsted, 1843 accepted as Phaenocora unipunctata (Ørsted, 1843) Bendl, 1908 (new combination reference)
Vertex represented as Vortex Ehrenberg, 1831 accepted as Dalyellia Fleming, 1822 (additional source)
Vortex emarginatus (Paula-Schrank, 1803) Diesing, 1850 accepted as Vortex truncatus (Abildgaard, 1879) Ehrenberg, 1831 accepted as Jensenia truncata (Abildgaard, 1879) Graff, 1904-08 accepted as Castrella (Castrella) truncata (Abildgaard, 1789) Sekera, 1906 (new combination reference)
Vortex marginatus (Leidy, 1847) Diesing, 1850 accepted as Prostomum marginatum Leidy, 1847 accepted as Castrella (Castrella) marginata (Leidy, 1847) Hyman, 1951 accepted as Castrella (Castrella) pinguis (Silliman, 1884) Fuhrmann, 1900 (new combination reference)