Alaurina Busch, 1851 accepted as Microstomum Schmidt, 1848 (basis of record)
Alaurina composita Metschnikoff, 1861 accepted as Microstomum compositum (Metschnikoff, 1861) (basis of record)
Anaperidae Dörjes, 1968 accepted as Convolutidae Graff, 1905 (basis of record)
Anaperus Graff, 1911 accepted as Thalassoanaperus Hernandez, 2018 (basis of record)
Aphanostoma Ørsted, 1845 (basis of record)
Astrotorhynchus Graff, 1905 (basis of record)
Astrotorhynchus bifidus (McIntosh, 1874) Graff, 1905 (basis of record)
Bdellouridae Diesing, 1862 (basis of record)
Bothriomolus Hallez, 1909 (basis of record)
Bothriomolus balticus Meixner, 1938 (basis of record)
Callioplanidae Hyman, 1953 (basis of record)
Cercyridae Bohmig, 1906 (basis of record)
Childia Graff, 1910 (basis of record)
Childia groenlandica (Levinsen, 1879) (basis of record)
Childiidae Dörjes, 1968 accepted as Mecynostomidae Dörjes, 1968 (basis of record)
Cirrifera Sopott, 1972 (basis of record)
Cirrifera cirrifera Sopott, 1972 (basis of record)
Coelogynopora Steinböck, 1924 (basis of record)
Coelogynopora schultzii Meixner, 1938 accepted as Coelogynopora schulzii Meixner, 1938 (basis of record)
Coelogynoporidae Karling, 1966 (basis of record)
Conaperta Antonius, 1968 (basis of record)
Convolutidae Graff, 1905 (basis of record)
Cylindrostomidae Reisinger, 1924 accepted as Pseudostomidae Graff, 1904-08 (basis of record)
Dalyelliida accepted as Dalytyphloplanida (basis of record)
Discocelides Bergendal, 1893 (basis of record)
Dolichomacrostomidae Rieger, 1971 (basis of record)
Ectocotyla Hyman, 1944 (basis of record)
Ectocotyla hirudo Levinsen, 1879 (basis of record)
Foviella Bock, 1925 (basis of record)
Foviella affinis (Ørsted, 1843) (basis of record)
Gnesiocerotidae Marcus & Marcus, 1966 (basis of record)
Graffillidae Graff, 1905 (additional source)
Itaspiella Ax, 1956 (basis of record)
Itaspiella helgolandica (Meixner, 1938) (basis of record)
Leptoplana Ehrenberg, 1831 (basis of record)
Leptoplanidae Stimpson, 1857 (basis of record)
Macrostomidae Beneden E., 1870 (basis of record)
Macrostomum Schmidt, 1848 (basis of record)
Mecynostomidae Dörjes, 1968 (basis of record)
Microstomidae Luther, 1907 (basis of record)
Microstomum Schmidt, 1848 (basis of record)
Monocelididae Hofsten, 1907 (basis of record)
Monocelis Ehrenberg, 1831 (basis of record)
Monoophorum Bohmig, 1890 (basis of record)
Notoplana Laidlaw, 1903 (additional source)
Notoplanidae Marcus & Marcus, 1966 (basis of record)
Otocelididae Westblad, 1948 (basis of record)
Otocelis Diesing, 1862 (basis of record)
Otoplanidae Hallez, 1892 (basis of record)
Paedomecynostomum Dörjes, 1968 (basis of record)
Paedomecynostomum bruneum Dörjes, 1968 (basis of record)
Paravortex Wahl, 1906 (basis of record)
Paravortex gemellipara (Linton, 1910) Ball, 1916 (basis of record)
Philocelis Dörjes, 1968 (basis of record)
Plagiostomidae (basis of record)
Plagiostomum Schmidt, 1852 (basis of record)
Planoceridae Lang, 1884 (basis of record)
Plehnia Bock, 1913 (basis of record)
Plehniidae Bock, 1913 (basis of record)
Pleioplana Faubel, 1983 (basis of record)
Pleioplana atomata (Müller OF, 1776) accepted as Notoplana atomata (Müller OF, 1776) (basis of record)
Pleioplanidae Faubel, 1983 (basis of record)
Praeaphanostoma Dörjes, 1968 (basis of record)
Praeconvoluta Dörjes, 1968 (basis of record)
Procerodes Girard, 1850 (basis of record)
Procerodes littoralis (Strøm, 1768) (basis of record)
Procerodidae Diesing, 1862 (basis of record)
Promesostomidae Graff, 1882 (basis of record)
Proseriata (basis of record)
Pseudactinoposthia Dörjes, 1968 (basis of record)
Pseudostomidae Graff, 1904-08 (basis of record)
Sabussowia Bohmig, 1906 (basis of record)
Solenofilomorphidae Dörjes, 1968 (basis of record)
Stylochidae Stimpson, 1857 (basis of record)
Stylochus Ehrenberg, 1831 (basis of record)
Tricladida (basis of record)
Trigonoporus Lang, 1884 (basis of record)
Trigonostomidae Graff, 1905 (basis of record)
Typhloplanida accepted as Dalytyphloplanida (basis of record)
Urastoma Dörler, 1900 (basis of record)
Urastoma cyprinae (Graff, 1882) (basis of record)
Urastomidae Dörler, 1900 (basis of record)
Uteriporidae Böhmig, 1906 (basis of record)
Uteriporus Bergendal, 1890 (basis of record)
Uteriporus vulgaris Bergendal, 1890 (basis of record)

Baltic sea for Bothriomolus balticus Meixner, 1938 
Baltic sea for Childia groenlandica (Levinsen, 1879) 
Baltic sea for Coelogynopora schultzii Meixner, 1938 
Baltic sea for Pleioplana atomata (Müller OF, 1776) 
Baltic sea for Procerodes littoralis (Strøm, 1768) 
Baltic sea for Urastoma cyprinae (Graff, 1882) 
Baltic sea for Uteriporus vulgaris Bergendal, 1890 
Black Sea for Urastoma cyprinae (Graff, 1882) 
European waters (ERMS scope) for Alaurina composita Metschnikoff, 1861 
European waters (ERMS scope) for Astrotorhynchus bifidus (McIntosh, 1874) Graff, 1905 
European waters (ERMS scope) for Bothriomolus balticus Meixner, 1938 
European waters (ERMS scope) for Childia groenlandica (Levinsen, 1879) 
European waters (ERMS scope) for Cirrifera cirrifera Sopott, 1972 
European waters (ERMS scope) for Coelogynopora schultzii Meixner, 1938 
European waters (ERMS scope) for Ectocotyla hirudo Levinsen, 1879 
European waters (ERMS scope) for Foviella affinis (Ørsted, 1843) 
European waters (ERMS scope) for Paedomecynostomum bruneum Dörjes, 1968 
European waters (ERMS scope) for Paravortex gemellipara (Linton, 1910) Ball, 1916 
European waters (ERMS scope) for Pleioplana atomata (Müller OF, 1776) 
European waters (ERMS scope) for Procerodes littoralis (Strøm, 1768) 
European waters (ERMS scope) for Urastoma cyprinae (Graff, 1882) 
European waters (ERMS scope) for Uteriporus vulgaris Bergendal, 1890 
Mediterranean Sea for Childia groenlandica (Levinsen, 1879) 
Mediterranean Sea for Pleioplana atomata (Müller OF, 1776) 
Mediterranean Sea for Urastoma cyprinae (Graff, 1882) 

 Taxonomy

 for Lagenorhynchus Brunet, 1965

Also in database as valid genus in Delphinidae, (Chordata) - needs checking [details]