| Convolutidae Achoerus Beklemischev, 1914 | [with synonyms] | w | other taxonomic work | |
| Achoerus caspius Beklemischev, 1914 | | w | latest taxonomic authority | |
| Achoerus ferox Beklemischev, 1937 | | w | latest taxonomic authority | |
| Convolutidae Anaperus Graff, 1911 | | w | other taxonomic work | |
| Anaperus balticus Meixner, 1938 | | w | latest taxonomic authority | |
| Anaperus gardineri (Graff, 1911) | | w | other taxonomic work | |
| Anaperus sulcatus Beklemischev, 1914 | | w | other taxonomic work | |
| Anaperus tvaerminnensis (Luther, 1912) | | w | other taxonomic work | |
| Anaperidae Paranaperus Westblad, 1942 | | w | latest taxonomic authority | |
| Haploposthia pellucidus (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Pseudanaperus tinctus (Marcus, 1952) | [with synonyms] | w | other taxonomic work | |
| Actinoposthia beklemischevi Mamkaev, 1965 | | w | latest taxonomic authority | |
| Actinoposthia caudata An der Lan, 1936 | | w | latest taxonomic authority | |
| Adeloposthia elegans An der Lan, 1936 | | w | latest taxonomic authority | |
| Childia brachyposthium (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia crassum (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia cycloposthium (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia dubium (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia leptoposthium (Riedl, 1956) | [with synonyms] | w | other taxonomic work | |
| Childia macroposthium (Steinböck, 1931) | [with synonyms] | w | other taxonomic work | |
| Childia submaculatum (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia trianguliferum (Westblad, 1942) | [with synonyms] | w | other taxonomic work | |
| Childia westbladi (Marcus, 1950) | [with synonyms] | w | other taxonomic work | |
| Paraproporus elegans (An der Lan, 1936) | [with synonyms] | w | latest taxonomic authority | |
| Paraproporus tinctus Marcus, 1952 | | w | latest taxonomic authority | |
| Paraproporus xanthus Marcus, 1950 | | w | latest taxonomic authority | |
| Philactinoposthia pusilla (Westblad, 1946) | [with synonyms] | w | latest taxonomic authority | |
| Philactinoposthia rhammifera (Westblad, 1946) | [with synonyms] | w | latest taxonomic authority | |
| Pseudactinoposthia daena (Marcus, 1954) | [with synonyms] | w | latest taxonomic authority | |
| Tetraposthia colymbetes An der Lan, 1936 | [with synonyms] | w | latest taxonomic authority | |
| Childiidae Tetraposthia Steinböck, 1931 | | w | latest taxonomic authority | |
| Aberrantospermata Convolutidae Graff, 1905 | [with synonyms] | w | other taxonomic work | |
| Convolutidae Amphiscolops Graff, 1904 | [with synonyms] | w | latest taxonomic authority | |
| Amphiscolops bermudensis Hyman, 1939 | | w | latest taxonomic authority | |
| Amphiscolops cinereus (Graff, 1874) | [with synonyms] | w | latest taxonomic authority | |
| Amphiscolops japonicus Kato, 1947 | [with synonyms] | w | latest taxonomic authority | |
| Amphiscolops zeii Riedl, 1956 | | w | latest taxonomic authority | |
| Isodiametridae Aphanostoma Ørsted, 1845 | [with synonyms] | w | latest taxonomic authority | |
| Aphanostoma armatum Steinböck & Lanser, 1932 | | w | latest taxonomic authority | 77 |
| Aphanostoma auritum Westblad, 1946 | | w | latest taxonomic authority | |
| Aphanostoma bimaculata Steinböck & Lanser, 1932 | | w | latest taxonomic authority | 77 |
| Aphanostoma divaceum Verrill, 1893 | | w | latest taxonomic authority | 77 |
| Aphanostoma diversicolor Ørsted, 1845 | | w | latest taxonomic authority | |
| Aphanostoma elegans Jensen, 1878 | | w | latest taxonomic authority | |
| Aphanostoma macrospiriferum Westblad, 1946 | | w | latest taxonomic authority | |
| Aphanostoma macrobursalium Westblad, 1946 | | w | latest taxonomic authority | |
| Aphanostoma pulchella Pereyaslawzewa, 1892 | | w | latest taxonomic authority | |
| Aphanostoma rhomboides Jensen, 1878 | [with synonyms] | w | latest taxonomic authority | |
| Aphanostoma rhomboides Westblad, 1946 | | w | latest taxonomic authority | |
| Aphanostoma virescens (Ørsted, 1845) | [with synonyms] | w | latest taxonomic authority | |
| Archaphanostoma agile (Jensen, 1878) | | w | latest taxonomic authority | |
| Archaphanostoma macrospiriferum (Westblad, 1946) | | w | latest taxonomic authority | |
| Isodiametridae Avagina Leiper, 1902 | [with synonyms] | w | other taxonomic work | 86 |
| Baltalimania agile (Jensen, 1878) | [with synonyms] | w | latest taxonomic authority | |
| Baltalimania kosswigi Ax, 1959 | [with synonyms] | w | latest taxonomic authority | |
| Baltalimania macrospiriferum (Westblad, 1946) | [with synonyms] | w | latest taxonomic authority | |
| Convolutidae Bohmigia Sabussow, 1899 | | w | latest taxonomic authority | |
| Bohmigia maris-alba Sabussow, 1899 | | w | latest taxonomic authority | |
| Convoluta agilis An der Lan, 1936 | | w | latest taxonomic authority | 77 |
| Convoluta albomaculata (Pereyaslawzewa, 1892) | [with synonyms] | w | latest taxonomic authority | |
| Convoluta armata Graff, 1874 | | w | latest taxonomic authority | |
| Convoluta bimaculata Graff, 1882 | | w | latest taxonomic authority | 77 |
| Convoluta boehmigi (Brauner, 1920) | [with synonyms] | w | latest taxonomic authority | |
| Convoluta confusa Graff, 1904 | | w | latest taxonomic authority | |
| Convoluta convoluta (Abildgaard, 1806) | [with synonyms] | w | latest taxonomic authority | |
| Convoluta diesingii Schmidt, 1852 | | w | latest taxonomic authority | |
| Convoluta dubia Brauner, 1926 | | w | latest taxonomic authority | 77 |
| Convoluta elegans Pereyaslawzewa, 1892 | | w | other taxonomic work | |
| Convoluta festiva Uljanin, 1870 | | w | latest taxonomic authority | 77 |
| Convoluta hamata An der Lan, 1936 | | w | latest taxonomic authority | 77 |
| Convoluta henseni Bohmig, 1895 | | w | latest taxonomic authority | |
| Convoluta infundibulum Schmidt, 1861 | | w | latest taxonomic authority | |
| Convoluta karlingi Westblad, 1946 | | w | latest taxonomic authority | |
| Convoluta lacazii Graff, 1891 | | w | latest taxonomic authority | |
| Convoluta macnaei Du Bois-Reymond Marcus, 1957 | | w | latest taxonomic authority | |
| Convoluta paradoxa Ørsted, 1843 | | w | latest taxonomic authority | |
| Convoluta punctata Riedl, 1959 | | w | latest taxonomic authority | 77 |
| Convoluta pusilla Westblad, 1946 | | w | latest taxonomic authority | |
| Convoluta rhammifera Westblad, 1946 | | w | latest taxonomic authority | |
| Convoluta saliens (Graff, 1882) | | w | latest taxonomic authority | |
| Convoluta semperi Graff, 1882 | | w | latest taxonomic authority | 77 |
| Convoluta sordida Graff, 1882 | [with synonyms] | w | latest taxonomic authority | |
| Convoluta subsalina Ax, 1959 | | w | latest taxonomic authority | |
| Convoluta sutcliffei Hanson, 1961 | [with synonyms] | w | other taxonomic work | |
| Convoluta thauma Marcus, 1952 | | w | latest taxonomic authority | |
| Convoluta uljanini Graff, 1904 | | w | latest taxonomic authority | 77 |
| Convoluta viridipunctata Westblad, 1946 | | w | latest taxonomic authority | |
| Isodiametridae Diatomovora Kozloff, 1965 | [with synonyms] | w | latest taxonomic authority | |
| Diatomovora amoena Kozloff, 1965 | | w | latest taxonomic authority | |
| Isodiametridae Faerlea Westblad, 1945 | | w | latest taxonomic authority | |
| Haplodiscus agilis Beklemischev, 1927 | | w | latest taxonomic authority | |
| Convolutidae Oligochoerus Beklemischev, 1963 | | w | latest taxonomic authority | |
| Oligochoerus bakuensis Beklemischev, 1963 | | w | latest taxonomic authority | |
| Oligochoerus conops Beklemischev, 1963 | | w | latest taxonomic authority | |
| Convolutidae Oxyposthia Ivanov, 1952 | [with synonyms] | w | other taxonomic work | |
| Convolutidae Polychoerus Mark, 1892 | [with synonyms] | w | latest taxonomic authority | |
| Polychoerus caudatus Mark, 1892 | | w | latest taxonomic authority | |
| Polychoerus virescens Lohner, 1913 | | w | latest taxonomic authority | |
| Praeaphanostoma sizilianum (Riedl, 1954) | [with synonyms] | w | latest taxonomic authority | |
| Convolutidae Proantropora Mamkaev, 1967 | | w | latest taxonomic authority | |
| Proantropora murmanicus Mamkaev, 1967 | | w | latest taxonomic authority | |
| Proaphanostoma variabile Steinböck & Lanser, 1932 | | w | latest taxonomic authority | 77 |
| Isodiametridae Pseudaphanostoma Westblad, 1946 | [with synonyms] | w | latest taxonomic authority | |
| Pseudaphanostoma murmanicus (Mamkaev, 1967) | [with synonyms] | w | latest taxonomic authority | |
| Pseudaphanostoma variabilis Westblad, 1946 | | w | latest taxonomic authority | |
| Isodiametridae Pseudoposthia Westblad, 1946 | | w | latest taxonomic authority | |
| Pseudoconvoluta aurantiaca Beklemischev, 1929 | | w | latest taxonomic authority | 77 |
| Isodiametridae Rimicola Bohmig, 1908 | | w | latest taxonomic authority | |
| Rimicola glacialis Bohmig, 1908 | | w | latest taxonomic authority | |
| Acoela Diopisthoporidae Westblad, 1940 | | w | latest taxonomic authority | |
| Diopisthoporidae Diopisthoporus Westblad, 1940 | | w | latest taxonomic authority | |
| Prosopharyngida Hallangiidae Westblad, 1946 | | w | latest taxonomic authority | |
| Hallangiidae Aechmalotus Beklemischev, 1915 | | w | latest taxonomic authority | |
| Aechmalotus pyrula Beklemischev, 1915 | [with synonyms] | w | latest taxonomic authority | |
| Hallangiidae Hallangia Westblad, 1946 | | w | latest taxonomic authority | |
| Hallangia evelinae Marcus, 1952 | | w | latest taxonomic authority | |
| Hallangia proporoides Westblad, 1946 | | w | latest taxonomic authority | |
| Acoela Haploposthiidae Westblad, 1948 | | w | latest taxonomic authority | |
| Deuterogonaria thauma (Marcus, 1952) | [with synonyms] | w | latest taxonomic authority | |
| Haploposthia brunea An der Lan, 1936 | | w | latest taxonomic authority | |
| Haploposthia microphoca Marcus, 1950 | | w | latest taxonomic authority | |
| Pseudaphanostoma opisthorchis (Mamkaev, 1967) | [with synonyms] | w | latest taxonomic authority | 67 |
| Haploposthia rubra (An der Lan, 1936) | [with synonyms] | w | latest taxonomic authority | |
| Haploposthia rubropunctata Westblad, 1945 | | w | latest taxonomic authority | |
| Haplogonaria arenaria (Ax, 1959) | [with synonyms] | w | latest taxonomic authority | |
| Haplogonaria idia (Marcus, 1954) | [with synonyms] | w | latest taxonomic authority | |
| Haplogonaria pellita (Marcus, 1951) | [with synonyms] | w | latest taxonomic authority | |
| Pseudohaplogonaria macnaei (Du Bois-Reymond Marcus, 1957) | | w | latest taxonomic authority | |
| Pseudohaplogonaria stylifera (Westblad, 1946) | | w | latest taxonomic authority | |
| Pseudohaplogonaria sutcliffei (Hanson, 1961) | | w | latest taxonomic authority | |
| Pseudohaplogonaria viridipunctata (Westblad, 1946) | [with synonyms] | w | latest taxonomic authority | |
| Prosopharyngida Hofsteniidae Bock, 1923 | | w | latest taxonomic authority | |
| Hofsteniidae Hofstenia Bock, 1923 | | w | latest taxonomic authority | |
| Hofstenia atroviridis Bock, 1923 | [with synonyms] | w | latest taxonomic authority | |
| Hofstenia beltagii Steinböck, 1966 | | w | latest taxonomic authority | |
| Hofstenia giselae Steinböck, 1966 | | w | latest taxonomic authority | |
| Hofstenia miamia Correa, 1960 | [with synonyms] | w | other taxonomic work | |
| Hofstenia minuta Palombi, 1928 | | w | latest taxonomic authority | 77 |
| Hofsteniidae Hofsteniola Papi, 1957 | | w | latest taxonomic authority | |
| Hofsteniidae Marcusiola Steinböck, 1966 | | w | latest taxonomic authority | 105 |
| Mecynostomidae Mecynostomum Beneden E, 1870 | | w | latest taxonomic authority | |
| Mecynostomum agile Jensen, 1878 | | w | latest taxonomic authority | |
| Mecynostomum arenarium Ax, 1959 | | w | latest taxonomic authority | |
| Mecynostomum auritum (Schultze, 1851) | [with synonyms] | w | latest taxonomic authority | |
| Mecynostomum auritum flavescens (Westblad, 1946) | | w | latest taxonomic authority | |
| Mecynostomum auritum glandulosum (Westblad, 1946) | | w | latest taxonomic authority | |
| Mecynostomum bathycola Westblad, 1948 | | w | latest taxonomic authority | |
| Mecynostomum daenum Marcus, 1954 | | w | latest taxonomic authority | |
| Mecynostomum evelinae Marcus, 1948 | | w | latest taxonomic authority | |
| Mecynostomum idium Marcus, 1954 | | w | latest taxonomic authority | |
| Mecynostomum macrospiriferum (Westblad, 1946) | | w | latest taxonomic authority | |
| Mecynostomum pellitum Marcus, 1951 | | w | latest taxonomic authority | |
| Mecynostomum sanguineum (Beklemischev, 1915) | | w | latest taxonomic authority | |
| Mecynostomum sizilianum Riedl, 1954 | | w | latest taxonomic authority | |
| Paedomecynostomum psammophilum (Beklemischev, 1957) | | w | latest taxonomic authority | |
| Paramecynostomum diversicolor (Ørsted, 1845) | [with synonyms] | w | latest taxonomic authority | |
| Acoela Myostomellidae Riedl, 1954 | | w | latest taxonomic authority | |
| Myostomellidae Myostomella Riedl, 1954 | | w | latest taxonomic authority | |
| Myostomella pulchella Riedl, 1954 | | w | latest taxonomic authority | |
| Nadinidae Nadina Uljanin, 1870 | [with synonyms] | w | latest taxonomic authority | |
| Nadina evelinae (Marcus, 1952) | [with synonyms] | w | latest taxonomic authority | |
| Nadina minuta Claparede, 1863 | [with synonyms] | w | latest taxonomic authority | |
| Nadina pulchella Uljanin, 1870 | [with synonyms] | w | latest taxonomic authority | |
| Nadina sensitiva Uljanin, 1870 | [with synonyms] | w | latest taxonomic authority | |
| Crucimusculata Otocelididae Westblad, 1948 | | w | other taxonomic work | |
| Haplocelis dichona (Marcus, 1954) | [with synonyms] | w | other taxonomic work | |
| Notocelis gullmarensis (Westblad, 1946) | [with synonyms] | w | other taxonomic work | |
| Notocelis subsalina (Ax, 1959) | [with synonyms] | w | latest taxonomic authority | |
| Otocelididae Otocelis Diesing, 1862 | [with synonyms] | w | other taxonomic work | |
| Otocelis chiridotae Beklemischev, 1915 | | w | latest taxonomic authority | 77 |
| Otocelis dichona Marcus, 1954 | | w | latest taxonomic authority | |
| Otocelis gullmarensis Westblad, 1946 | | w | latest taxonomic authority | |
| Otocelis luteola (Kozloff, 1965) | [with synonyms] | w | latest taxonomic authority | |
| Otocelis westbladi Ax, 1959 | | w | latest taxonomic authority | |
| Philocelis karlingi (Westblad, 1946) | [with synonyms] | w | latest taxonomic authority | |
| Paratomellidae Paratomella Dörjes, 1966 | | w | other taxonomic work | |
| Paratomella unichaeta Dörjes, 1966 | | w | latest taxonomic authority | |
| Crucimusculata Proporidae Graff, 1882 | [with synonyms] | w | latest taxonomic authority | |
| Proporidae Proporus Schmidt, 1848 | [with synonyms] | w | latest taxonomic authority | |
| Proporus rubropunctata Schmidt, 1852 | | w | latest taxonomic authority | |
| Cyrtomorpha saliens Graff L, 1882 | | w | latest taxonomic authority | |
| Cyrtomorpha subtilis Graff L, 1882 | | w | latest taxonomic authority | |
| Darwinia albomaculata Pereyaslawzewa, 1892 | | w | latest taxonomic authority | |
| Darwinia variabilis Pereyaslawzewa, 1892 | | w | latest taxonomic authority | |
| incertae sedis Lamelliposthia Steinbock, 1932 | | w | latest taxonomic authority | |
| Lamelliposthia rubropunctata Steinbock, 1932 | | w | latest taxonomic authority | 77 |
| Monochoerus boehmigi Brauner, 1920 | | w | latest taxonomic authority | |
| incertae sedis Polysolenoposthia Steinbock, 1932 | | w | latest taxonomic authority | |
| Polysolenoposthia bathycola Steinböck & Lanser, 1932 | | w | latest taxonomic authority | 77 |
| Polysolenoposthia porsildi Steinböck & Lanser, 1932 | | w | latest taxonomic authority | 77 |
| Tetraposthia colymbetes Steinböck, 1931 | | w | latest taxonomic authority | |
| Acoela Anaperidae Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Achoerus pachycaudatus Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Convolutidae Philachoerus Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Philachoerus johanni Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Convolutidae Pseudanaperus Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Acoela Antigonariidae Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Antigonariidae Antigonaria Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Antigonaria arenaria Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Acoela Childiidae Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Childia haplovata (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Actinoposthiidae Archactinoposthia Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Archactinoposthia pelophila Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Actinoposthiidae Atriofronta Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Atriofronta polyvacuola Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Paraproporus diovatus Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Actinoposthiidae Pelophila Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pelophila cavernosa Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pelochildia pachymorpha (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Dakuidae Philactinoposthia Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Philactinoposthia adenogonaria Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philactinoposthia diploposthia Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philactinoposthia helgolandica Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philactinoposthia viridis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philactinoposthia viridorhabditis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Childiidae Proactinoposthia Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proactinoposthia pelophila Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Actinoposthiidae Pseudactinoposthia Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Pseudactinoposthia granaria Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudactinoposthia saltans Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Aphanostoma album Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Aphanostoma auratiacum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Archaphanostoma Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Archaphanostoma histobursalium Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Bursosaphia Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Bursosaphia baltalimaniaformis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametra helgolandica (Dörjes, 1968) | | w | primary taxonomic authority (describer) | |
| Convoluta variomorpha Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametra variomorpha (Dörjes, 1968) | | w | primary taxonomic authority (describer) | |
| Mecynostomidae Postaphanostoma Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Postaphanostoma atriomagnum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Postaphanostoma filum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Postaphanostoma glandulosum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Praeconvoluta Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Praeconvoluta karinae Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Praeaphanostoma Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Praeaphanostoma brevifrons Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Praeaphanostoma chaetocaudatum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Praeaphanostoma longum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Praeaphanostoma rubrum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Proconvoluta Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proconvoluta primitiva Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudaphanostoma brevicaudatum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudaphanostoma pelophilum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudaphanostoma psammophilum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Diopisthoporus brachypharyngeus Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Diopisthoporus psammophilus Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proporidae Adenocauda Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Adenocauda helgolandica Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proporidae Deuterogonaria Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Proporidae Haplogonaria Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Haplogonaria glandulifera Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplogonaria macrobursalia Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplogonaria simplex Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplogonaria sinubursalia Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudaphanostoma syltensis (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Simplicomorpha viridis (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Proporidae Parahaplogonaria Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Parahaplogonaria maxima Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proporidae Parahaploposthia Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Parahaploposthia avesicula Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Parahaploposthia cerebroepitheliata Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proporidae Pseudohaplogonaria Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Pseudohaplogonaria vacua Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Proporidae Pseudokuma Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Proporidae Simplicomorpha Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Simplicomorpha gigantorhabditis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Aberrantospermata Mecynostomidae Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Eumecynostomum flavescens (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Eumecynostomum fragilis (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Eumecynostomum juistensis (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Eumecynostomum maritimum (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Eumecynostomum westbladi (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Mecynostomum haplovarium Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Neomecynostomum granulum (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Mecynostomidae Paedomecynostomum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Paedomecynostomum bruneum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Mecynostomidae Paramecynostomum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Mecynostomidae Philomecynostomum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philomecynostomum lapillum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Mecynostomidae Postmecynostomum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Postmecynostomum pictum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Mecynostomidae Pseudmecynostomum Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum bruneum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum flavescens (Dörjes, 1968) | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum fragilis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum granulum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum juistensis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum maritimum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum pelophilum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pseudmecynostomum westbladi Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Acoela Nadinidae Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Otocelididae Archocelis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Archocelis macrorhabditis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Isodiametridae Haplocelis Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Otocelididae Haplotestis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplotestis curvitubus Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Dakuidae Notocelis Dörjes, 1968 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Otocelididae Philocelis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Philocelis cellata Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Prosopharyngida Solenofilomorphidae Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Solenofilomorphidae Solenofilomorpha Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Solenofilomorpha longissima Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Aechmalotus pyrola Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Childiidae Archactinoposthia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Childiidae Atriofronta Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Childiidae Pelophila (Dörjes, 1968) | | - | primary taxonomic authority (describer) | |
| Childiidae Philactinoposthia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Childiidae Pseudactinoposthia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Mecynostomidae Pseudomecynostomum Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Convoluta actuosa (Kozloff, 1965) | | w | other taxonomic work | |
| Monochoerus chuni Brauner, 1920 | | w | other taxonomic work | |
| Convoluta chiridotae (Beklemischev, 1915) | [with synonyms] | w | latest taxonomic authority | 77 |
| Xenacoela Acoela Uljanin, 1870 | | w | other taxonomic work | |
| Bitesticulata Paratomellidae Dörjes, 1966 | | w | other taxonomic work | |
| Convolutidae Archaphanostoma Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Convolutidae Bursosaphia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Convolutidae Postaphanostoma Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Convolutidae Praeaphanostoma Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Convolutidae Praeconvoluta Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Convolutidae Proconvoluta Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Conaperta variomorpha (Dörjes, 1968) | | w | primary taxonomic authority (describer) | |
| Convoluta helgolandica Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Mecynostomum cordiforme Levinsen, 1879 | | w | latest taxonomic authority | 77 |
| Convoluta maris-alba (Sabussow, 1899) | [with synonyms] | w | latest taxonomic authority | 77 |
| Aphanostoma aurantiacum Verrill, 1893 | [with synonyms] | w | latest taxonomic authority | 77 |
| Mecynostomum filiferum Ax, 1963 | | w | latest taxonomic authority | 77 |
| Otocelididae Haplocelis Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Actinoposthiidae Philactinoposthia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Actinoposthiidae Philactinoposthia Dörjes, 1968 | | - | latest taxonomic authority | |
| Actinoposthia haplovata Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Actinoposthia haplovata Dörjes, 1968 | | w | latest taxonomic authority | |
| Anaperidae Philachoerus Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Anaperidae Philachoerus Dörjes, 1968 | | - | latest taxonomic authority | |
| Anaperidae Pseudanaperus Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Anaperidae Pseudanaperus Dörjes, 1968 | | - | latest taxonomic authority | |
| Otocelididae Notocelis Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Otocelididae Notocelis Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Adenocauda Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Adenocauda Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Deuterogonaria Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Deuterogonaria Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Haplogonaria Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Haplogonaria Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Parahaplogonaria Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Parahaplogonaria Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Parahaploposthia Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Parahaploposthia Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Pseudohaplogonaria Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Pseudohaplogonaria Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Pseudokuma Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Pseudokuma Dörjes, 1968 | | - | latest taxonomic authority | |
| Haploposthiidae Simplicomorpha Dörjes, 1968 | | - | primary taxonomic authority (describer) | |
| Haploposthiidae Simplicomorpha Dörjes, 1968 | | - | latest taxonomic authority | |
| Haplogonaria syltensis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplogonaria syltensis Dörjes, 1968 | | w | latest taxonomic authority | |
| Haplogonaria viridis Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Haplogonaria viridis Dörjes, 1968 | | w | latest taxonomic authority | |
| Dakuidae Philocelis Dörjes, 1968 | [with synonyms] | - | primary taxonomic authority (describer) | 867, Table 8 |
| Convolutidae Pelophila Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Convolutidae Pelophila Dörjes, 1968 | | w | other taxonomic work | |
| Pelophila pachymorpha Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Pelophila pachymorpha Dörjes, 1968 | | w | primary taxonomic authority (describer) | |
| Faerlea primitiva (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | 6 |
| Aphanostoma helgolandica (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | 16 |
| Baltalimania histobursalium (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | 10-11, 19 |
| Praeaphanostoma baltalimaniaformis (Dörjes, 1968) | [with synonyms] | - | primary taxonomic authority (describer) | 20 |
| Praeconvoluta variomorpha (Dörjes, 1968) | [with synonyms] | w | primary taxonomic authority (describer) | 20 |
| Mecynostomum lentiferum Levinsen, 1879 | | w | latest taxonomic authority | 77 |
| Proporus cyclops Schmidt, 1848 | | w | other taxonomic work | 77 |
| Actinoposthiidae Acoelopelophila Ceccolini & Cianferoni, 2022 | [with synonyms] | w | other taxonomic work | |
| Convolutidae Pseudoconvoluta Beklemischev, 1929 | | w | latest taxonomic authority | 77 |
| Aphanostoma chromocephalum Steinböck, 1933 | | w | latest taxonomic authority | 77 |
