| Nominal Species (n = 139) | Present allocation (n = 138) | Ref. |
|---|---|---|
| Krampia acropora Ditlevsen, 1921 | Krampia acropora | 19 |
| Oncholaimus aegypticus Steiner, 1921 | Oncholaimus aegypticus | 19 |
| Metoncholaimus amplus Hopper, 1967 | Metoncholaimus amplus | 19 |
| Pelagonema anoplum Kreis, 1932 | Pelagonema anoplum | 19 |
| Viscosia antarctica Allgen, 1959 | Viscosia antarctica | 19 |
| Oncholaimus apostematus Wieser, 1959 | Oncholaimus apostematus | 19 |
| Oncholaimus aquaedulcis Schneider, 1937 | Oncholaimus aquaedulcis | 19 |
| Adoncholaimus aralensis Filipjev, 1924 | Adoncholaimus aralensis | 19 |
| Prooncholaimus aransas Chitwood, 1951 | Prooncholaimus aransas | 19 |
| Oncholaimellus arcticus Allgen, 1957 | Oncholaimellus arcticus | 19 |
| Pontonema ardens Gerlach, 1957 | Pontonema ardens | 19 |
| Oncholaimus attenuatus Dujardin, 1845 | Oncholaimus attenuatus | 19 |
| Oncholaimus bajulus Paramonov, 1937 | Oncholaimus bajulus | 19 |
| Mononcholaimus bandaensis Kreis, 1932 | Mononcholaimus bandaensis | 19 |
| Viscosia brachydonta Allgen, 1959 | Viscosia brachydonta | 19 |
| Viscosia brachylaimoides Chitwood, 1937 | Viscosia brachylaimoides | 19 |
| Oncholaimellus brevicauda Timm, 1969 | Oncholaimellus brevicauda | 19 |
| Oncholaimus brevicaudatus Filipjev, 1918 | Oncholaimus brevicaudatus | 19 |
| Oncholaimus brevicaudiculatus Rachor, 1970 | Oncholaimus brevicaudiculatus | 19 |
| Viscosia brevilaima Allgen, 1959 | Viscosia brevilaima | 19 |
| Oncholaimus brevisetosus Kreis, 1932 | Oncholaimus brevisetosus | 19 |
| Enoplus caeruleum Eberth, 1863 | Vasculonema caeruleum | 75097 |
| Pontonema californicum Allgen, 1947 | Pontonema californicum | 19 |
| Oncholaimellus calvadosicus De Man, 1890 | Oncholaimellus calvadosicus | 19 |
| Oncholaimus campbelli Allgen, 1929 | Oncholaimus campbelli | 19 |
| Oncholaimus campylocercoides De Coninck & Stekhoven, 1933 | Oncholaimus campylocercoides | 19 |
| Pontonema cobbi Mawson, 1956 | Pontonema cobbi | 19 |
| Viscosia cobbi Filipjev, 1918 | Viscosia cobbi | 19 |
| Vasculonema conicaudatum Kreis, 1928 | Vasculonema conicaudatum | 19 |
| Mononcholaimus conicaudatus Kreis, 1932 | Mononcholaimus conicaudatus | 19 |
| Viscosia crassa Kreis, 1932 | Viscosia crassa | 19 |
| Adoncholaimus crassicaudatus Wieser, 1953 | Adoncholaimus crassicaudus | 2378 |
| Adoncholaimus crassicaudus Wieser, 1953 | Adoncholaimus crassicaudus | 19 |
| Viscosia cryptodentata Allgen, 1947 | Viscosia cryptodentata | 19 |
| Oncholaimus curvicauda Allgen, 1957 | Oncholaimus curvicauda | 19 |
| Curvolaimus decipiens Wieser, 1953 | Curvolaimus decipiens | 19 |
| Oncholaimus demani Zur Strassen, 1894 | Metoncholaimus demani | 75097 |
| Viscosia dubiosa Kreis, 1932 | Viscosia dubiosa | 19 |
| Oncholaimus dujardinii De Man, 1876 | Oncholaimus dujardinii | 19 |
| Oncholaimus dujardinioides Chitwood, 1960 | Oncholaimus dujardinioides | 19 |
| Mononcholaimus elegans Kreis, 1924 | Mononcholaimus elegans | 19 |
| Pseudopelagonema elegans Kreis, 1932 | Pseudopelagonema elegans | 19 |
| Viscosia elongata Filipjev, 1922 | Viscosia elongata | 19 |
| Oncholaimoides elongatus Hopper, 1961 | Oncholaimoides elongatus | 19 |
| Viscosia falklandiae Allgen, 1959 | Viscosia falklandiae | 19 |
| Convexolaimus filicaudatus Kreis, 1928 | Convexolaimus filicaudatus | 19 |
| Oncholaimus filicaudatus Ditlevsen, 1926 | Filoncholaimus filicaudatus | 75097 |
| Pseudopelagonema filiforme Kreis, 1932 | Pseudopelagonema filiforme | 19 |
| Mononcholaimus gabriolae Allgen, 1951 | Mononcholaimus gabriolae | 19 |
| Asymmetrella glabra Cobb, 1920 | Asymmetrella glabra | 19 |
| Viscosia grahami Allgen, 1959 | Viscosia grahami | 19 |
| Pontonema hackingi Mawson, 1953 | Pontonema hackingi | 19 |
| Metoncholaimus haplotretos Mawson, 1958 | Metoncholaimus haplotretos | 3477 |
| Prooncholaimus hastatus Wieser & Hopper, 1967 | Prooncholaimus hastatus | 19 |
| Metaparoncholaimus heterocytous Chitwood & Chitwood, 1938 | Metaparoncholaimus heterocytous | 19 |
| Oncholaimellus heterurus Cobb, 1914 | Oncholaimellus heterurus | 19 |
| Adoncholaimus islandicus Kreis, 1963 | Adoncholaimus islandicus | 19 |
| Viscosia isotonchula Kreis, 1932 | Viscosia isotonchula | 19 |
| Mononcholaimus klatti Allgen, 1941 | Mononcholaimus klatti | 19 |
| Viscosia leptolaima Kreis, 1932 | Viscosia leptolaima | 19 |
| Adoncholaimus longicaudatus Paramonov, 1929 | Adoncholaimus longicaudatus | 19 |
| Pelagonema longicaudum Allgen, 1953 | Pelagonema longicaudum | 19 |
| Krampia longicollis Allgen, 1939 | Krampia longicollis | 19 |
| Metoncholaimus longiovum Chitwood, 1960 | Metoncholaimus longiovum | 19 |
| Viscosia longissima Filipjev, 1946 | Viscosia longissima | 19 |
| Pseudoparoncholaimus longissimecaudatus Kreis, 1932 | Filoncholaimus longissimecaudatus | 75097 |
| Viscosia macramphida Chitwood, 1951 | Viscosia macramphida | 19 |
| Viscosia macrorhopalocerca Kreis, 1932 | Viscosia macrorhopalocerca | 19 |
| Meyersia major Hopper, 1967 | Meyersia major | 19 |
| Oncholaimus martini Wieser, 1959 | Oncholaimus martini | 19 |
| Prooncholaimus mawsonae Inglis, 1971 | Prooncholaimus mawsonae | 19 |
| Wiesoncholaimus mawsonae Inglis, 1966 | Wiesoncholaimus mawsonae | 19 |
| Oncholaimellus mediterraneus Stekhoven, 1942 | Oncholaimellus mediterraneus | 19 |
| Viscosia meridionalis Kreis, 1932 | Viscosia meridionalis | 19 |
| Oncholaimellus meteori Gerlach, 1967 | Oncholaimellus meteori | 19 |
| Oncholaimus microdon Ditlevsen, 1930 | Oncholaimus microdon | 19 |
| Meyersia minor Hopper, 1967 | Meyersia minor | 19 |
| Viscosia minor Filipjev, 1918 | Viscosia minor | 19 |
| Anoncholaimus mobilis Cobb, 1920 | Anoncholaimus mobilis | 19 |
| Pontonema muelleri Diesing, 1861 | Pontonema muelleri | 19 |
| Oncholaimus nigrocephalatus Cobb, 1930 | Oncholaimus nigrocephalatus | 19 |
| Viscosia nona Filipjev, 1946 | Viscosia nona | 19 |
| Oncholaimus notolangrunensis Allgen, 1959 | Oncholaimus notolangrunensis | 19 |
| Oncholaimus notoxyuris Allgen, 1959 | Oncholaimus notoxyuris | 19 |
| Viscosia nuda Kreis, 1932 | Viscosia nuda | 19 |
| Adoncholaimus nudus Kreis, 1932 | Kreisoncholaimus nudus | 75097 |
| Pelagonema obtusicauda Filipjev, 1918 | Pelagonema obtusicauda | 19 |
| Viscosia oncholaimelloides Wieser & Hopper, 1967 | Viscosia oncholaimelloides | 19 |
| Oncholaimus opisthonchus Filipjev, 1927 | Oncholaimus opisthonchus | 19 |
| Prooncholaimus ornatus Kreis, 1932 | Prooncholaimus ornatus | 19 |
| Oncholaimus oxyuris Ditlevsen, 1911 | Oncholaimus oxyuris | 19 |
| Viscosia palmae Stekhoven, 1942 | Viscosia palmae | 19 |
| Adoncholaimus panicus Cobb, 1930 | Adoncholaimus panicus | 19 |
| Viscosia papillata Chitwood, 1951 | Viscosia papillata | 19 |
| Viscosia papillatoides Chitwood, 1960 | Viscosia papillatoides | 19 |
| Pelagonema papillatum Allgen, 1957 | Pelagonema papillatum | 19 |
| Adoncholaimus papillatus Kreis, 1932 | Adoncholaimus papillatus | 19 |
| Cacolaimus papillatus Kreis, 1932 | Cacolaimus papillatus | 19 |
| Oncholaimus paraegypticus Mawson, 1956 | Oncholaimus paraegypticus | 19 |
| Viscosia paralinstowi Chitwood, 1937 | Viscosia paralinstowi | 19 |
| Viscosia parapedroensis Allgen, 1947 | Viscosia parapedroensis | 19 |
| Viscosia pedroensis Allgen, 1947 | Viscosia pedroensis | 19 |
| Metoncholaimus pelor Hopper, 1967 | Metoncholaimus pelor | 19 |
| Oncholaimus priapulus Wieser, 1959 | Oncholaimus priapulus | 19 |
| Pontonema problematicum Chitwood, 1960 | Pontonema problematicum | 19 |
| Filoncholaimus prolatus Hopper, 1967 | Filoncholaimus prolatus | 19 |
| Viscosia pseudoglabra Kreis, 1932 | Viscosia pseudoglabra | 19 |
| Viscosia pseudosegmentata Allgen, 1947 | Viscosia pseudosegmentata | 19 |
| Oncholaimus punctatus Cobb, 1914 | Adoncholaimus punctatus | 75097 |
| Anoncholaimus rhopalura Stekhoven, 1950 | Bradybucca rhopalura | 75097 |
| Oncholaimoides rugosus Chitwood, 1937 | Oncholaimoides rugosus | 19 |
| Mononcholaimus rusticus Kreis, 1929 | Mononcholaimus rusticus | 19 |
| Metoncholaimus scissus Wieser & Hopper, 1967 | Metoncholaimus scissus | 19 |
| Pontonema serratodentatum Mawson, 1956 | Pontonema serratodentatum | 19 |
| Mononcholaimus setosus Kreis, 1932 | Mononcholaimus setosus | 19 |
| Viscosia similis Allgen, 1959 | Viscosia similis | 19 |
| Metoncholaimus simplex Wieser & Hopper, 1967 | Metoncholaimus simplex | 19 |
| Pelagonema simplex Cobb, 1894 | Pelagonema simplex | 19 |
| Oncholaimus skawensis Ditlevsen, 1921 | Oncholaimus skawensis | 19 |
| Oncholaimus spissus Allgen, 1935 | Oncholaimus spissus | 19 |
| Metoncholaimoides squalus Wieser, 1953 | Metoncholaimoides squalus | 19 |
| Oncholaimus steinboecki Ditlevsen, 1928 | Oncholaimus steinboecki | 19 |
| Oncholaimus steineri Ditlevsen, 1928 | Oncholaimus steineri | 19 |
| Oncholaimoides striatus Chitwood, 1937 | Oncholaimoides striatus | 19 |
| Pelagonema tenue Kreis, 1928 | Pelagonema tenue | 19 |
| Fimbria tenuis Cobb, 1894 | Fimbrilla tenuis | 75097 |
| Viscosia tenuissima Allgen, 1959 | Viscosia tenuissima | 19 |
| Oncholaimus tobagoensis Allgen, 1947 | Oncholaimus tobagoensis | 19 |
| Oncholaimus trichospiculum Allgen, 1947 | Metoncholaimus trichospiculum | 75097 |
| Viscosia tumidula Wieser, 1959 | Viscosia tumidula | 19 |
| Oncholaimus ushakovi Filipjev, 1927 | Oncholaimus ushakovi | 19 |
| Curvolaimus uteratus Viutiello, 1970 | Curvolaimus uteratus | 19 |
| Metoncholaimus uvifer Wieser, 1959 | Metoncholaimus uvifer | 19 |
| Pontonema vacillatum Leidy, 1855 | Pontonema vacillatum | 19 |
| Pontonema valviferum Chitwood, 1951 | Pontonema valviferum | 19 |
| Oncholaimus viridis Bastian, 1865 | Oncholaimus viridis | 19 |
| Mononcholaimus viscosus Allgen, 1930 | Mononcholaimus viscosus | 19 |
| Curvolaimus wieseri Timm, 1961 | Curvolaimus wieseri | 19 |
| Pontonema yaenae Inglis, 1964 | Pontonema yaenae | 19 |