| Nominal Species (n = 102) | Present allocation (n = 101) | Ref. |
|---|---|---|
| Bradyidius abyssalis Markhaseva & Renz, 2021 | Bradyidius abyssalis | 3477 |
| Chiridiella abyssalis Brodsky, 1950 | Chiridiella abyssalis | 3477 |
| Aetideus acutus Farran, 1929 | Aetideus acutus | 19 |
| Gaidius affinis Sars, 1905 | Gaidius affinis | 19 |
| Euchirella amoena Giesbrecht, 1888 | Euchirella amoena | 19 |
| Euchirella areata Tanaka, 1957 | Euchirella areata | 77982 |
| Pseudocalanus armatus Boeck, 1872 | Aetideus armatus | 3477 |
| Undinopsis armatus Sars, 1903 | Undinopsis armatus | 78023 |
| Gaetanus armiger Giesbrecht, 1888 | Gaetanus armiger | 19 |
| Bradyidius arnoldi Fleminger, 1957 | Bradyidius arnoldi | 19 |
| Gaetanus ascendens Esterly, 1913 | Gaetanus ascendens | 19 |
| Pseudochirella batillipa Park, 1978 | Pseudochirella batillipa | 3477 |
| Euchirella bella Giesbrecht, 1888 | Euchirella bella | 8292 |
| Chiridiella bispinosa Park, 1970 | Chiridiella bispinosa | 19 |
| Undeuchaeta bispinosa Esterly, 1911 | Undeuchaeta bispinosa | 19 |
| Euchirella bitumida With, 1915 | Euchirella bitumida | 19 |
| Aetideus bradyi Scott, 1909 | Aetideus bradyi | 19 |
| Bradyidius bradyi Sars, 1903 | Bradyidius bradyi | 19 |
| Undinopsis bradyi Sars | Undinopsis bradyi | 19 |
| Pseudeuchaeta brevicauda Sars, 1905 | Pseudeuchaeta brevicauda | 19 |
| Bryaxis brevicornis Sars, 1902 | Comantenna brevicornis | 75097 |
| Gaetanus brevicornis Esterly, 1906 | Gaetanus brevicornis | 19 |
| Valdiviella brevicornis Sars, 1905 | Valdiviella brevicornis | 19 |
| Gaidius brevirostris Brodsky, 1950 | Gaidius brevirostris | 19 |
| Euchirella brevis Sars, 1905 | Euchirella brevis | 19 |
| Senecella calanoides Juday, 1923 | Senecella calanoides | 19 |
| Gaetanus campbellae Park, 1975 | Gaetanus campbellae | 19 |
| Gaetanus caudani Canu, 1896 | Gaetanus caudani | 19 |
| Gaetanus clarus Esterly, 1906 | Gaetanus clarus | 19 |
| Azygokeras columbiae Koeller & Littlepage, 1976 | Azygokeras columbiae | 19 |
| Gaidius columbiae Park, 1967 | Gaetanus columbiae | 75097 |
| Euchirella curticauda Giesbrecht, 1888 | Euchirella curticauda | 19 |
| Gaetanus curvicornis Sars, 1905 | Gaetanus curvicornis | 19 |
| Aetideopsis divaricata Esterly, 1911 | Aetideopsis divaricata | 19 |
| Aetideus divergens Bradford, 1971 | Aetideus divergens | 19 |
| Euchirella formosa Vervoort, 1949 | Euchirella formosa | 19 |
| Euchirella galeata Giesbrecht, 1888 | Euchirella galeata | 19 |
| Aetideus giesbrechti Cleve, 1904 | Aetideus giesbrechti | 19 |
| Chiridius gracilis Farran, 1908 | Chiridius gracilis | 19 |
| Paivella inaciae Vervoort, 1965 | Paivella inaciae | 19 |
| Undeuchaeta incisa Esterly, 1911 | Undeuchaeta incisa | 19 |
| Euchirella indica Vervoort, 1949 | Euchirella indica | 77983 |
| Bradyetes inermis Farran, 1905 | Bradyetes inermis | 19 |
| Valdiviella insignis Farran, 1908 | Valdiviella insignis | 19 |
| Euchirella intermedia With, 1915 | Euchirella intermedia | 19 |
| Undeuchaeta intermedia Scott, 1909 | Undeuchaeta intermedia | 19 |
| Gaetanus kruppii Giesbrecht, 1903 | Gaetanus kruppii | 19 |
| Bradyidius kurilokamchaticus Markhaseva & Renz, 2021 | Bradyidius kurilokamchaticus | 3477 |
| Batheuchaeta lamellata Brodsky, 1950 | Batheuchaeta lamellata | 19 |
| Gaetanus latifrons Sars, 1905 | Gaetanus latifrons | 19 |
| Bradyidius luluae Grice, 1973 | Bradyidius luluae | 19 |
| Chiridiella macrodactyla Sars, 1907 | Chiridiella macrodactyla | 19 |
| Aetideopsis magna Grice & Hülsemann, 1970 | Aetideopsis magna | 19 |
| Undeuchaeta major Giesbrecht, 1888 | Undeuchaeta major | 19 |
| Pseudochirella mawsoni Vervoort, 1957 | Pseudochirella mawsoni | 19 |
| Euchirella maxima Wolfenden, 1905 | Euchirella maxima | 19 |
| Chiridius mexicanus Park, 1975 | Chiridius mexicanus | 19 |
| Gaetanus miles Giesbrecht, 1888 | Gaetanus miles | 19 |
| Bryaxis minor Farran, 1904 | Paracomantenna minor | 75097 |
| Gaetanus minor Farran, 1905 | Gaetanus minor | 19 |
| Undeuchaeta minor Giesbrecht, 1888 | Undeuchaeta minor | 19 |
| Gaidius minutus Sars, 1907 | Gaidius minutus | 19 |
| Pseudochirella obesa Sars, 1920 | Pseudochirella obesa | 19 |
| Chiridius obtusifrons Sars, 1902 | Chiridius obtusifrons | 19 |
| Valdiviella oligarthra Steuer, 1904 | Valdiviella oligarthra | 19 |
| Aetideopsis pacifica Esterly, 1911 | Aetideopsis multiserrata | 75097 |
| Aetideus pacificus Brodsky, 1950 | Aetideus pacificus | 19 |
| Undinopsis pacificus Brodsky, 1950 | Bradyidius pacificus | 75097 |
| Bradyidius parabyssalis Markhaseva & Renz, 2021 | Bradyidius parabyssalis | 3477 |
| Gaetanus pileatus Farran, 1903 | Gaetanus pileatus | 19 |
| Chiridius polaris Wolfenden, 1911 | Chiridius polaris | 19 |
| Pseudochirella polyspina Brodsky, 1950 | Pseudochirella polyspina | 19 |
| Chiridius poppei Giesbrecht, 1892 | Chiridius poppei | 19 |
| Euchirella propria Esterly, 1911 | Euchirella propria | 19 |
| Euchirella pseudopulchra Park, 1976 | Euchirella pseudopulchra | 19 |
| Euchirella pseudotruncata Park, 1975 | Euchirella pseudotruncata | 19 |
| Gaidius pungens Giesbrecht, 1895 | Gaetanus pungens | 75097 |
| Comantenna recurvata Grice & Hülsemann, 1970 | Comantenna recurvata | 19 |
| Chiridiella reducta Brodsky, 1950 | Chiridiella abyssalis | 3477 |
| Chiridiella reductella Markhaseva, 1996 | Chiridiella reductella | 3477 |
| Gaetanus robustus Sars, 1905 | Gaetanus robustus | 19 |
| Aetideopsis rostrata Sars, 1903 | Aetideopsis rostrata | 19 |
| Sursamucro rostratus Markhaseva, Bradford-Grieve & Renz, 2021 | Sursamucro rostratus | 3477 |
| Euchirella rostromagna Wolfenden, 1905 | Euchirella rostromagna | 3477 |
| Bradyidius saanichi Park, 1966 | Bradyidius saanichi | 19 |
| Chiridiella sarsi Markhaseva, 1983 | Chiridiella sarsi | 3477 |
| Gaetanus secundus Esterly, 1911 | Gaetanus secundus | 19 |
| Undinopsis similis Sars, 1902 | Bradyidius similis | 75097 |
| Euchirella simplex Esterly, 1911 | Euchirella simplex | 19 |
| Gaetanus simplex Brodsky, 1950 | Gaetanus simplex | 19 |
| Euchirella speciosa Grice & Hulsemann, 1968 | Euchirella speciosa | 3477 |
| Euchirella splendens Vervoort, 1963 | Euchirella splendens | 19 |
| Pseudochirella squalida Grice & Hülsemann, 1967 | Pseudochirella squalida | 19 |
| Chirundina streetsi Giesbrecht, 1895 | Chirundina streetsi | 19 |
| Chirundina streetsii Giesbrecht, 1895 | Chirundina streetsii | 19 |
| Chiridius subgracilis Park, 1975 | Chiridius subgracilis | 19 |
| Chiridius tenuispinus Sars, 1900 | Gaetanus tenuispinus | 3477 |
| Euchirella truncata Esterly, 1911 | Euchirella truncata | 19 |
| Gaetanus unicornis Esterlt, 1906 | Gaetanus unicornis | 19 |
| Euchirella unispina Park, 1968 | Euchirella unispina | 78016 |
| Gaidius variabilis Brodsky, 1950 | Gaetanus variabilis | 75097 |
| Euchirella venusta Giesbrecht, 1888 | Euchirella venusta | 19 |