Acrorhynchides Strand, 1928 (basis of record)
Acrorhynchides caledonicus (Claperede, 1861) Strand, 1928 (basis of record)
Acrorhynchides robustus (Karling, 1931) Strand, 1928 (basis of record)
Actinoposthia An der Lan, 1936 (basis of record)
Actinoposthia beklemishevi Mamkaev, 1965 accepted as Actinoposthia beklemischevi Mamkaev, 1965 (basis of record)
Alaurina Busch, 1851 accepted as Microstomum Schmidt, 1848 (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)
Anaperus biaculeatus Boguta, 1970 accepted as Thalassoanaperus biaculeatus (Boguta, 1970) (basis of record)
Anaperus tvaerminnensis (Luther, 1912) accepted as Thalassoanaperus tvaerminnensis (Luther, 1912) (basis of record)
Anoplodium Schneider, 1858 (basis of record)
Anoplodium chirodotae Sabussow, 1900 (basis of record)
Aphanostoma Ørsted, 1845 (basis of record)
Aphanostoma virescens Ørsted, 1845 (basis of record)
Archaphanostoma Dörjes, 1968 accepted as Baltalimania Ax, 1959 (basis of record)
Archaphanostoma agile (Jensen, 1878) accepted as Baltalimania agile (Jensen, 1878) (basis of record)
Archilopsis Meixner, 1938 (basis of record)
Archilopsis spinosa (Jensen, 1878) Martens, Curini-Galletti & Puccinelli, 1989 (basis of record)
Archilopsis unipunctata (Fabricius, 1826) (basis of record)
Astrotorhynchus Graff, 1905 (basis of record)
Astrotorhynchus bifidus (McIntosh, 1874) Graff, 1905 (basis of record)
Baicalellia Nasonov, 1930 (basis of record)
Baicalellia brevituba (Luther, 1918) Nasonov, 1930 (basis of record)
Baltalimania Ax, 1959 (basis of record)
Bdellouridae Diesing, 1862 (basis of record)
Brinkmanniella Luther, 1943 (basis of record)
Brinkmanniella macrostomoides Luther, 1948 (basis of record)
Byrsophlebidae Graff, 1882 (basis of record)
Byrsophlebs Jensen, 1878 (basis of record)
Byrsophlebs graffi Jensen, 1878 (basis of record)
Ceratopera Den Hartog, 1964 (basis of record)
Cheliplana de Beauchamp, 1927 (basis of record)
Cheliplana mamkaevi Evdonin, 1977 (basis of record)
Cheliplana stylifera Karling, 1949 (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)
Cicerinidae Meixner, 1928 (basis of record)
Coelogynopora Steinböck, 1924 (basis of record)
Coelogynopora gynocotyla Steinböck, 1924 (basis of record)
Coelogynoporidae Karling, 1966 (basis of record)
Collastoma Dörler, 1900 (basis of record)
Collastoma eremitae Beklemischev, 1916 (basis of record)
Conaperta Antonius, 1968 (basis of record)
Convoluta Ørsted, 1843 (basis of record)
Convoluta convoluta (Abildgaard, 1806) (basis of record)
Convolutidae Graff, 1905 (basis of record)
Cylindrostoma Ørsted, 1845 (basis of record)
Cylindrostomidae Reisinger, 1924 accepted as Pseudostomidae Graff, 1904-08 (basis of record)
Dalyelliida accepted as Dalytyphloplanida (basis of record)
Dalyelliidae Graff, 1905 (additional source)
Desmote Beklemischev, 1916 (basis of record)
Desmote vorax Beklemischev, 1916 (basis of record)
Diascorhynchidae Meixner, 1928 (basis of record)
Diascorhynchus Meixner, 1928 (basis of record)
Diascorhynchus borealis Meixner, 1928 (basis of record)
Dolichomacrostomidae Rieger, 1971 (basis of record)
Dolichomacrostomum Luther, 1947 (basis of record)
Dolichomacrostomum uniporum Luther, 1947 (basis of record)
Eumecynostomum Faubel & Regier, 1983 (basis of record)
Eumecynostomum pallidum (Beklemischev, 1915) (basis of record)
Foviella Bock, 1925 (basis of record)
Foviella affinis (Ørsted, 1843) (basis of record)
Gnathorhynchidae Meixner, 1929 (basis of record)
Gnathorhynchus Meixner, 1929 (basis of record)
Gnathorhynchus conocaudatus Meixner, 1929 (basis of record)
Graffilla Ihering, 1880 (basis of record)
Graffilla buccinicola Jameson, 1897 (basis of record)
Graffilla graffi Mitin, 1970 (basis of record)
Graffillidae Graff, 1905 (additional source)
Halammovortex Karling, 1943 (basis of record)
Halammovortex macropharynx (Meixner, 1938) Karling, 1943 (basis of record)
Halammovortex nigrifrons (Karling, 1935) Karling, 1943 (basis of record)
Hallangiidae Westblad, 1946 (basis of record)
Haploposthia An der Lan, 1936 (basis of record)
Haploposthiidae Westblad, 1948 accepted as Proporidae Graff, 1882 (basis of record)
Itaipusa Marcus, 1949 (basis of record)
Itaipusa scotica (Karling, 1954) Karling, 1978 accepted as Reinhardorhynchus scoticus (Karling, 1954) Diez, Monnens & Artois, 2021 (basis of record)
Itaspiella Ax, 1956 (basis of record)
Itaspiella helgolandica (Meixner, 1938) (basis of record)
Jensenia Graff, 1882 (basis of record)
Jensenia angulata (Jensen, 1878) Graff, 1882 (basis of record)
Kalyptorhynchia (basis of record)
Karkinorhynchidae Meixner, 1928 (basis of record)
Koinocystididae Meixner, 1924 (basis of record)
Leptoplanidae Stimpson, 1857 (basis of record)
Listea Ax & Heller, 1970 (basis of record)
Listea simplex Ax & Heller, 1970 (basis of record)
Macrostomidae Beneden E., 1870 (basis of record)
Macrostomum Schmidt, 1848 (basis of record)
Macrostomum curvituba Luther, 1947 (basis of record)
Maehrenthalia Graff, 1905 (basis of record)
Maehrenthalia agilis (Levinsen, 1879) Graff, 1905 (basis of record)
Mecynostomidae Dörjes, 1968 (basis of record)
Mecynostomum Beneden E., 1870 (basis of record)
Mecynostomum auritum (Schultze, 1851) (basis of record)
Messoplana Den Hartog, 1966 accepted as Ceratopera Den Hartog, 1964 (basis of record)
Messoplana elegans (Luther, 1948) Den Hartog, 1966 accepted as Ceratopera elegans (Luther, 1948) Van Steenkiste & Leander, 2018 (basis of record)
Microstomidae Luther, 1907 (basis of record)
Microstomum Schmidt, 1848 (basis of record)