| Nominal Species (n = 62) | Present allocation (n = 54) | Ref. |
|---|---|---|
| Paraeuchaeta abyssalis Brodsky, 1950 | Paraeuchaeta abyssalis | 19 |
| Euchaeta acuta Giesbrecht, 1892 | Euchaeta acuta | 19 |
| Euchaeta antarctica Giesbrecht, 1902 | Paraeuchaeta antarctica | 75097 |
| Euchaeta barbata Brady, 1883 | Paraeuchaeta barbata | 75097 |
| Paraeuchaeta biloba Farran, 1929 | Paraeuchaeta biloba | 19 |
| Paraeuchaeta birostrata Brodsky, 1950 | Paraeuchaeta birostrata | 19 |
| Euchaeta bisinuata Sars, 1907 | Paraeuchaeta bisinuata | 75097 |
| Euchaeta bradyi With, 1915 | Paraeuchaeta bradyi | 75097 |
| Paraeuchaeta brevirostris Brodsky, 1950 | Paraeuchaeta brevirostris | 19 |
| Euchaeta californica Esterly, 1906 | Paraeuchaeta californica | 75097 |
| Euchaeta concinna Dana, 1849 | Euchaeta concinna | 19 |
| Euchaeta dactylifera Park, 1978 | Paraeuchaeta dactylifera | 3477 |
| Euchaeta diegensis Esterly, 1911 | Euchaeta media | 75097 |
| Euchaeta dubia Esterly, 1906 | Paraeuchaeta californica | 75097 |
| Euchaeta elongata Esterly, 1913 | Paraeuchaeta elongata | 75097 |
| Euchaeta eltaninae Park, 1978 | Paraeuchaeta eltaninae | 3477 |
| Paraeuchaeta erebi Farran, 1929 | Paraeuchaeta erebi | 19 |
| Euchaeta farrani With, 1915 | Paraeuchaeta barbata | 3477 |
| Euchaeta glacialis Hansen, 1886 | Paraeuchaeta glacialis | 75097 |
| Euchaeta gracilis Sars, 1905 | Paraeuchaeta gracilis | 75097 |
| Euchaeta hansenii With, 1915 | Paraeuchaeta hansenii | 75097 |
| Euchaeta hebes Giesbrecht, 1888 | Paraeuchaeta hebes | 75097 |
| Euchaeta incisa Sars, 1905 | Paraeuchaeta incisa | 75097 |
| Euchaeta indica Wolfenden, 1905 | Euchaeta indica | 19 |
| Euchaeta japonica Marukawa, 1921 | Paraeuchaeta elongata | 75097 |
| Paraeuchaeta kurilensis Heptner, 1971 | Paraeuchaeta kurilensis | 3477 |
| Euchaeta longgisima Park, 1978 | Paraeuchaeta kurilensis | 3477 |
| Euchaeta longicornis Giesbrecht, 1888 | Euchaeta longicornis | 19 |
| Paraeuchaeta malayensis Sewell, 1929 | Paraeuchaeta malayensis | 19 |
| Euchaeta media Giesbrecht, 1888 | Euchaeta media | 19 |
| Paraeuchaeta megaloba Park, 1995 | Paraeuchaeta megaloba | 19 |
| Paraeuchaeta modesta Brodsky, 1950 | Paraeuchaeta modesta | 19 |
| Euchaeta norvegica Boeck, 1872 | Paraeuchaeta norvegica | 75097 |
| Paraeuchaeta orientalis Brodsky, 1950 | Paraeuchaeta orientalis | 19 |
| Euchaeta paraconcinna Fleminger, 1957 | Euchaeta paraconcinna | 19 |
| Paraeuchaeta paraprudens Park, 1995 | Paraeuchaeta paraprudens | 19 |
| Euchaeta parvula Park, 1978 | Paraeuchaeta parvula | 3477 |
| Euchaeta plana Mori, 1937 | Euchaeta plana | 19 |
| Paraeuchaeta plaxiphora Park, 1995 | Paraeuchaeta plaxiphora | 19 |
| Paraeuchaeta polaris Brodsky, 1950 | Paraeuchaeta polaris | 19 |
| Euchaeta prestandreae Philippi, 1843 | Euchaeta marina | 3477 |
| Euchaeta propinqua Esterly, 1906 | Paraeuchaeta propinqua | 75097 |
| Paraeuchaeta prudens Tanaka & Omori, 1968 | Paraeuchaeta prudens | 19 |
| Euchaeta pseudotonsa Fontaine, 1967 | Paraeuchaeta pseudotonsa | 75097 |
| Euchaeta pubera Sars, 1907 | Paraeuchaeta pubera | 75097 |
| Paraeuchaeta rasa Farran, 1929 | Paraeuchaeta rasa | 3477 |
| Euchaeta regalis Grice & Hulsemann, 1968 | Paraeuchaeta regalis | 3477 |
| Euchaeta rimana Bradford, 1974 | Euchaeta rimana | 19 |
| Paraeuchaeta rubra Brodsky, 1950 | Paraeuchaeta rubra | 19 |
| Euchaeta sarsi Farran, 1908 | Paraeuchaeta sarsi | 75097 |
| Paraeuchaeta scopaeorhina Park, 1995 | Paraeuchaeta scopaeorhina | 19 |
| Euchaeta scotti Farran, 1908 | Paraeuchaeta scotti | 75097 |
| Paraeuchaeta sesquipedalis Park, 1995 | Paraeuchaeta sesquipedalis | 19 |
| Euchaeta solida Esterly, 1911 | Euchaeta tenuis | 75097 |
| Euchaeta spinifera Esterly, 1906 | Paraeuchaeta tonsa | 75097 |
| Euchaeta spinosa Giesbrecht, 1892 | Euchaeta spinosa | 19 |
| Euchaeta tenuis Esterly, 1906 | Euchaeta tenuis | 19 |
| Euchaeta tonsa Giesbrecht, 1895 | Paraeuchaeta tonsa | 75097 |
| Paraeuchaeta triloba Park, 1995 | Paraeuchaeta triloba | 19 |
| Paraeuchaeta tuberculata Scott, 1909 | Paraeuchaeta tuberculata | 19 |
| Euchaeta wilsoni Jespersen, 1934 | Euchaeta wilsoni | 19 |
| Euchaeta wolfendeni Scott, 1909 | Euchaeta indica | 75097 |