Adenorhynchus Meixner, 1938 (original description)
Adenorhynchus balticus Meixner, 1938 (original description)
Archilopsis Meixner, 1938 (original description)
Archilopsis unipunctata (Fabricius, 1826) (new combination reference)
Archimonocelididae Meixner, 1938 (original description)
Archimonocelis Meixner, 1938 (original description)
Archimonocelis mediterranea Meixner, 1938 (original description)
Archimonotresis Meixner, 1938 (original description)
Archimonotresis limophila Meixner, 1938 (original description)
Avagina aurita Meixner, 1938 accepted as
Mecynostomum auritum (Schultze, 1851) (source of synonymy)
Blennorhynchus Meixner, 1938 accepted as
Paracicerina Meixner, 1928 (basis of record)
Blennorhynchus Meixner, 1938 accepted as
Paracicerina Meixner, 1928 (original description)
Blennorhynchus egregius Meixner, 1938 accepted as
Paracicerina maristoi Karling, 1952 (original description)
Bothriomolus balticus Meixner, 1938 (original description)
Carcharodorhynchus Meixner, 1938 (original description)
Carcharodorhynchus subterraneus Meixner, 1938 (original description)
Cheliplana caeca Meixner, 1938 (basis of record)
Cheliplanilla Meixner, 1938 (original description)
Cheliplanilla caudata Meixner, 1938 (original description)
Coelogynopora gigantea Meixner, 1938 (original description)
Coelogynopora schultzii Meixner, 1938 accepted as
Coelogynopora schulzii Meixner, 1938 (original description)
Coelogynopora schulzii Meixner, 1938 (original description)
Coelogynopora tenuis Meixner, 1938 (original description)
Dalyellia armigera (Schmidt, 1861) Graff, 1905 accepted as
Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 (additional source)
Dalyellia cuspidata (Schmidt, 1861) Hofsten, 1907 accepted as
Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 (additional source)
Dalyellia ornata Hofsten, 1907 accepted as
Microdalyellia (Gieysztoria) ornata (Hofsten, 1907) Gieysztor, 1938 accepted as
Gieysztoria ornata (Hofsten, 1907) Ruebush & Hayes, 1939 (additional source)
Dalyellia pallida Hofsten, 1907 accepted as
Dalyellia virgulifera (Plotnikow, 1906) Graff, 1905 accepted as
Microdalyellia virgulifera (Plotnikow, 1905) Gieysztor, 1938 accepted as
Microdalyellia (Gieysztoria) virgulifera (Plotnikow, 1906) Gieysztor, 1938 accepted as
Gieysztoria virgulifera (Plotnikow, 1906) Ruebush & Hayes, 1939 (additional source)
Dalyellia picta (Schmidt, 1848) Graff, 1905 accepted as
Microdalyellia picta (Schmidt, 1848) Gieysztor, 1938 (additional source)
Ethmorhynchus Meixner, 1938 (original description)
Ethmorhynchus anophthalmus Meixner, 1938 (original description)
Euxinia baltica Meixner, 1938 (original description)
Gastropharynx Meixner, 1938 accepted as
Ulianinia Levinsen, 1879 (original description)
Gastropharynx contractilis Meixner, 1938 accepted as
Ulianinia contractilis (Meixner, 1938) (original description)
Gyratrix attemsi Graff, 1913 accepted as
Gyratricella attemsi (Graff, 1913) Karling, 1955 (additional source)
Gyratrix proavus Meixner, 1929 (additional source)
Haplopharyngidae Meixner, 1938 (original description)
Haplopharynx Meixner, 1938 (original description)
Haplopharynx rostratus Meixner, 1938 (original description)
Jensenia macropharynx Meixner, 1938 accepted as
Halammovortex macropharynx (Meixner, 1938) Karling, 1943 (original description)
Jensenia oculifera Beauchamp, 1927 accepted as
Beauchampiella oculifera (Beauchamp, 1927) Luther, 1955 accepted as
Beauchampiola oculifera (Beauchamp, 1927) Luther, 1957 (additional source)
Karkinorhynchus coecus Meixner, 1938 (original description)
Koinocystis heinckei (Attems, 1897) Meixner, 1938 accepted as
Utelga heinckei (Attems, 1897) Karling, 1954 (new combination reference)
Lekanorhynchus Meixner, 1938 (original description)
Lekanorhynchus remanei Meixner, 1938 (original description)
Monocelis balanocephala (Bohmig, 1902) (additional source)
Monocelis fuhrmanni Midelburg, 1908 (additional source)
Monotocelis Meixner, 1938 accepted as
Monocelis Ehrenberg, 1831 (original description)
Monotocelis gracilis Meixner, 1938 accepted as
Monocelis gracilis (Meixner, 1938) (original description)
Monotoplana Meixner, 1938 (original description)
Monotoplana diorchis Meixner, 1938 (original description)
Nematoplana Meixner, 1938 (original description)
Nematoplana coelogynoporoides Meixner, 1938 (original description)
Nematoplanidae Meixner, 1938 (original description)
Neopolycystis tridentata Karling, 1955 (taxonomy source)
Orthoplana foliacea (Meixner, 1938) accepted as
Pseudorthoplana foliacea (Meixner, 1938) (original description)
Otoplana baltica Meixner, 1938 accepted as
Otoplanella baltica (Meixner, 1938) (original description)
Otoplana filum Meixner, 1938 accepted as
Monostichoplana filum (Meixner, 1938) (original description)
Otoplana foliacea Meixner, 1938 accepted as
Pseudorthoplana foliacea (Meixner, 1938) (original description)
Otoplana helgolandica Meixner, 1938 accepted as
Itaspiella helgolandica (Meixner, 1938) (original description)
Otoplanidia Meixner, 1938 (original description)
Otoplanidia endocystis Meixner, 1938 (original description)
Paragnathorhynchus Meixner, 1938 (original description)
Paragnathorhynchus subterraneus Meixner, 1938 (original description)
Paramonotus Meixner, 1938 (original description)
Paramonotus hamatus (Jensen, 1878) Meixner, 1938 (new combination reference)
Paraschizorhynchus Meixner, 1938 accepted as
Proschizorhynchus Meixner, 1928 (basis of record)
Paratoplana capitata Meixner, 1938 accepted as
Parotoplana capitata Meixner, 1938 (original description)
Parotoplana Meixner, 1938 (original description)
Parotoplana capitata Meixner, 1938 (original description)
Philosyrtis germanica Meixner, 1938 accepted as
Kataplana germanica (Meixner in Ax, 1951) (original description)
Phonorhynchus bitubatus Meixner, 1938 (original description)
Phonorhynchus helgolandicus (Mecznikow, 1865) Graff, 1905 (additional source)
Placorhynchidae Meixner, 1938 (original description)
Plagiostomum cinctum Meixner, 1938 accepted as
Plagiostomum album Hyman, 1938 (original description)
Polycystis (Acrorhynchus) caledonica (Claparède, 1861) Meixner, 1924 accepted as
Acrorhynchides caledonicus (Claperede, 1861) Strand, 1928 (additional source)
Polycystis (Acrorhynchus) robusta (Karling, 1931) Meixner, 1938 accepted as
Acrorhynchides robustus (Karling, 1931) Strand, 1928 (new combination reference)
Polycystis crocea (Fabricius, 1826) Graff, 1905 accepted as
Graffiellus croceus (Fabricius, 1826) Hornung, 2016 (additional source)
Polycystis naegelii Kölliker, 1845 (additional source)
Polycystis robusta (Karling, 1931) Meixner, 1938 accepted as
Acrorhynchides robustus (Karling, 1931) Strand, 1928 (new combination reference)
Procheliplana Meixner, 1938 accepted as
Baltoplana Karling, 1949 (original description)
Procheliplana magnifica Meixner, 1938 accepted as
Baltoplana magna Karling, 1949 (original description)
Promesostoma excellens Meixner, 1938 (basis of record)
Promesostoma hamiferum Meixner, 1938 (basis of record)
Promesostoma lugubre Meixner, 1938 (basis of record)
Provortex psammophilus Ax, 1951 (basis of record)
Proxenetes arenarius Meixner, 1938 (original description)
Proxenetes filum Meixner, 1938 accepted as
Proxenetes karlingi Luther, 1943 (original description)
Psammopolycystis Meixner, 1938 (original description)
Psammopolycystis bidens Meixner, 1938 (original description)
Psammorhynchus Meixner, 1938 (original description)
Psammorhynchus tubulipenis Meixner, 1938 (original description)
Pseudograffilla Meixner, 1938 (original description)
Pseudograffilla arenicola Meixner, 1938 (original description)
Pseudograffillinae Meixner, 1938 (original description)
Pseudogyratrix Meixner, 1938 (original description)
Pseudogyratrix helgolandicum Meixner, 1938 (original description)
Pseudostomum arenarium Meixner, 1938 (original description)
Solenopharynx balticus Meixner, 1938 accepted as
Proceropharynx anophthalmus (Meixner, 1929) Ehlers, 1972 (original description)
Typhlopolycystis coeca Karling, 1956 (additional source)
Belt Sea for
Proxenetes arenarius Meixner, 1938
Germany for
Adenorhynchus balticus Meixner, 1938
Germany for
Cheliplanilla caudata Meixner, 1938
Germany for
Cicerina brevicirrus Meixner, 1928
Germany for
Cicerina remanei Meixner, 1928
Germany for
Ethmorhynchus anophthalmus Meixner, 1938
Germany for
Ethmorhynchus anophthalmus Meixner, 1938
Germany for
Euxinia baltica Meixner, 1938
Germany for
Gyratricella attemsi (Graff, 1913) Karling, 1955
Germany for
Gyratrix hermaphroditus Ehrenberg, 1831
Germany for
Neopolycystis tridentata Karling, 1955
Germany for
Paragnathorhynchus subterraneus Meixner, 1938
Germany for
Phonorhynchus bitubatus Meixner, 1938
Germany for
Phonorhynchus bitubatus Meixner, 1938
Germany for
Placorhynchus octaculeatus octaculeatus Karling, 1931
Germany for
Planaria torva (Müller OF, 1773)
Germany for
Proschizorhynchus helgolandicus Karling & L'Hardy, 1965
Germany for
Provortex tubiferus Luther, 1948
Germany for
Psammorhynchus tubulipenis Meixner, 1938
Germany for
Pseudorthoplana foliacea (Meixner, 1938)
Germany for
Typhlopolycystis coeca Karling, 1956
Italy for
Archimonocelis mediterranea Meixner, 1938
North Sea for
Aphanostoma cavernosum Meixner, 1938
North Sea for
Cicerina brevicirrus Meixner, 1928
North Sea for
Placorhynchus octaculeatus octaculeatus Karling, 1931