| Nominal Species (n = 92) | Present allocation (n = 92) | Ref. |
|---|---|---|
| Thalassoalaimus aceratus Vitiello, 1970 | Thalassoalaimus aceratus | 19 |
| Halalaimoides acuminatus Cobb, 1933 | Halalaimus acuminatus | 75097 |
| Oxystomina acuta Gerlach, 1957 | Oxystomina acuta | 19 |
| Litinium aequale Cobb, 1920 | Litinium aequale | 19 |
| Oxystomina affinis Gerlach, 1956 | Oxystomina affinis | 19 |
| Halalaimus alatus Timm, 1952 | Halalaimus alatus | 19 |
| Oxystomina alpha Chitwood, 1937 | Oxystomina alpha | 19 |
| Halalaimus amphistrius Vitiello, 1970 | Halalaimus amphistrius | 19 |
| Thalassoalaimus aquaedulcis Schneider, 1940 | Thalassoalaimus aquaedulcis | 19 |
| Paroxystomina asymmetrica Micoletzky, 1924 | Paroxystomina asymmetrica | 19 |
| Litinium bananum Gerlach, 1957 | Litinium bananum | 19 |
| Acoma borealis Steiner, 1916 | Nemacoma borealis | 75097 |
| Halalaimus brachyaulax Mawson, 1958 | Halalaimus brachyaulax | 19 |
| Thalassoalaimus brasiliensis Gerlach, 1956 | Thalassoalaimus brasiliensis | 19 |
| Thalassoalaimus brevicaudatus Vitiello, 1970 | Thalassoalaimus brevicaudatus | 19 |
| Oxystomina chitwoodi Timm, 1967 | Oxystomina chitwoodi | 19 |
| Halalaimus ciliocaudatus Allgen, 1932 | Halalaimus ciliocaudatus | 19 |
| Oxystomina circulosa Gerlach, 1967 | Nemanema circulosum | 75097 |
| Halalaimus cirrhatus Gerlach, 1953 | Halalaimus cirrhatus | 19 |
| Halalaimus climactericus Wieser, 1953 | Halalaimus climactericus | 19 |
| Halalaimus comatus Wieser, 1953 | Halalaimus comatus | 19 |
| Oxystomina cylindraticaudatum De Man, 1922 | Nemanema cylindraticaudatum | 75097 |
| Halalaimus delamarei Vitiello, 1970 | Halalaimus delamarei | 19 |
| Halalaimus diacros Mawson, 1958 | Halalaimus diacros | 19 |
| Halalaimus diplocephalus Filipjev, 1927 | Halalaimus diplocephalus | 19 |
| Thalassoalaimus egregius Steiner, 1916 | Thalassoalaimus egregius | 19 |
| Halalaimus filicaudatus Allgen, 1959 | Halalaimus filicaudatus | 19 |
| Halalaimus filicollis Timm, 1961 | Halalaimus filicollis | 19 |
| Halalaimus filicorpus Vitiello, 1970 | Halalaimus filicorpus | 19 |
| Acoma filiformis Allgen, 1929 | Halalaimus filiformis | 75097 |
| Thalassoalaimus filiformis Allgen, 1933 | Thalassoalaimus filiformis | 19 |
| Halalaimus filum Gerlach, 1962 | Halalaimus filum | 19 |
| Halalaimus fletcheri Mawson, 1958 | Halalaimus fletcheri | 19 |
| Halalaimus florescens Gerlach, 1967 | Halalaimus florescens | 19 |
| Halalaimus gracilis De Man, 1888 | Halalaimus gracilis | 19 |
| Halalaimus horridus Gerlach, 1956 | Halalaimus horridus | 19 |
| Thalassoalaimus impar Gerlach, 1962 | Thalassoalaimus impar | 19 |
| Oxystomina insulaealbae Filipjev, 1927 | Oxystomina insulaealbae | 19 |
| Halalaimus leptoderma Platonova, 1971 | Halalaimus leptoderma | 19 |
| Halalaimus lineatoides Timm, 1961 | Halalaimus lineatoides | 19 |
| Halalaimus lineatus Timm, 1961 | Halalaimus lineatus | 19 |
| Thalassoalaimus longicaudatus Vitiello, 1970 | Thalassoalaimus longicaudatus | 19 |
| Halalaimus longicollis Allgen, 1932 | Halalaimus longicollis | 19 |
| Halalaimus longisetosus Hopper, 1963 | Halalaimus longisetosus | 19 |
| Halalaimus longistriatus Timm, 1961 | Halalaimus longistriatus | 19 |
| Halalaimus lutarus Vitiello, 1970 | Halalaimus lutarus | 19 |
| Halalaimus luticolus Timm, 1961 | Halalaimus luticolus | 19 |
| Halalaimus macquariensis Mawson, 1958 | Halalaimus macquariensis | 19 |
| Thalassoalaimus macrosmaticus Wieser, 1953 | Thalassoalaimus macrosmaticus | 19 |
| Halalaimus marri Mawson, 1958 | Halalaimus marri | 19 |
| Thalassoalaimus mediterraneus Vitiello, 1970 | Thalassoalaimus mediterraneus | 19 |
| Halalaimus meyersi Wieser & Hopper, 1967 | Halalaimus meyersi | 19 |
| Paroxystomina micoletzkyi Wieser, 1953 | Paroxystomina micoletzkyi | 19 |
| Halalaimus monstrocaudatus Vitiello, 1970 | Halalaimus monstrocaudatus | 19 |
| Thalassoalaimus montemari Wieser, 1953 | Thalassoalaimus montemari | 19 |
| Angustinema nudum Cobb, 1933 | Angustinema nudum | 19 |
| Nemanema obtusicaudatum Allgen, 1947 | Nemanema obtusicaudatum | 19 |
| Thalassoalaimus oxycauda Filipjev, 1927 | Thalassoalaimus oxycauda | 19 |
| Thalassoalaimus pacificus Murphy, 1965 | Thalassoalaimus pacificus | 19 |
| Halalaimus papillifer Gerlach, 1956 | Halalaimus papillifer | 19 |
| Thalassoalaimus paramontemari Vitiello, 1970 | Thalassoalaimus paramontemari | 19 |
| Litinium parmatum Wieser, 1954 | Litinium parmatum | 19 |
| Halalaimus parvus Chitwood, 1936 | Halalaimus parvus | 19 |
| Thalassoalaimus pirum Lorenzen, 1969 | Thalassoalaimus pirum | 19 |
| Halalaimus ponticus Filipjev, 1922 | Halalaimus ponticus | 19 |
| Oxystomina pulchella Vitiello, 1970 | Oxystomina pulchella | 19 |
| Nemanema rectoresectum Kreis, 1928 | Nemanema rectoresectum | 19 |
| Halalaimus relatus Gerlach, 1967 | Halalaimus relatus | 19 |
| Thalassoalaimus rotundicaudatus Filipjev, 1927 | Thalassoalaimus rotundicaudatus | 19 |
| Halalaimus sarsi Gerlach, 1967 | Halalaimus sarsi | 19 |
| Halalaimus scleratus Timm, 1952 | Halalaimus scleratus | 19 |
| Halalaimus setosus Timm, 1961 | Halalaimus setosus | 19 |
| Thalassoalaimus setosus Timm, 1967 | Thalassoalaimus setosus | 19 |
| Halalaimus similis Allgen, 1930 | Halalaimus similis | 19 |
| Nemanema simplex Cobb, 1920 | Nemanema simplex | 19 |
| Halalaimus southerni Allgen, 1953 | Halalaimus southerni | 19 |
| Thalassoalaimus spissus Allgen, 1932 | Thalassoalaimus spissus | 19 |
| Halalaimus stammeri Schneidwer, 1940 | Halalaimus stammeri | 19 |
| Halalaimus strandi Allgen, 1934 | Halalaimus strandi | 19 |
| Porocoma striata Cobb, 1920 | Porocoma striata | 19 |
| Halalaimus striatus Gerlach, 1956 | Halalaimus striatus | 19 |
| Halalaimus supercirrhatus Gerlach, 1955 | Halalaimus supercirrhatus | 19 |
| Thalassoalaimus tardus De Man, 1893 | Thalassoalaimus tardus | 19 |
| Halalaimus tenuicapitatus Filipjev, 1946 | Halalaimus tenuicapitatus | 19 |
| Thalassoalaimus tenuis Allgen, 1935 | Thalassoalaimus tenuis | 19 |
| Halalaimus terrestris Gerlach, 1959 | Halalaimus terrestris | 19 |
| Halalaimus turbidus Vitiello, 1970 | Halalaimus turbidus | 19 |
| Oxystomina unguiculata Stekhoven, 1935 | Oxystomina unguiculata | 19 |
| Oxystomina vespertilio Wieser, 1953 | Oxystomina vespertilio | 19 |
| Litinium volutum Gerlach, 1962 | Litinium volutum | 19 |
| Maldivea xarifae Gerlach, 1962 | Maldivea xarifae | 19 |
| Halalaimus zenkevitshi Filipjev, 1927 | Halalaimus zenkevitshi | 19 |