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)
Blennorhynchus Meixner, 1938 accepted as Paracicerina Meixner, 1928 (basis of record)
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)
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)
Convoluta baltica Meixner, 1938 (original description)
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)
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)
Lekanorhynchus Meixner, 1938 (original description)
Lekanorhynchus remanei Meixner, 1938 (original description)
Monocelis fuhrmanni Midelburg, 1908 (additional source)
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 foliacea Meixner, 1938 accepted as Pseudorthoplana foliacea (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)
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)
Provortex psammophilus Ax, 1951 (basis of record)
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)
Pseudostomum arenarium Meixner, 1938 (original description)
Typhlopolycystis coeca Karling, 1956 (additional source)