Adoncholaimus lepidus (de Man, 1889) Filipjev, 1918 (additional source)
Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 (additional source)
Anticoma limalis Bastian, 1865 accepted as Anticoma acuminata (Eberth, 1863) Bastian, 1865 (additional source)
Axonolaimus demani De Coninck & Schuurmans Stekhoven, 1933 (additional source)
Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 (additional source)
Bathylaimus assimilis de Man, 1922 accepted as Bathylaimus australis Cobb, 1894 (additional source)
Bathylaimus parafilicaudatus Allgén, 1935 accepted as Bathylaimus chesapeakensis Timm, 1952 (ecology source)
Camacolaimus propinquus Allgén, 1929 (additional source)
Chromadoropsis Filipjev, 1918 (additional source)
Diplolaimella punicea Timm, 1952 (additional source)
Eleutherolaimus stenosoma de Man, 1907 (additional source)
Euchromadora de Man, 1886 (additional source)
Halalaimus gracilis de Man, 1888 (additional source)
Innocuonema tentabunda (de Man, 1890) Inglis, 1969 (additional source)
Leptolaimus papilliger de Man, 1876 (additional source)
Metachromadora Filipjev, 1918 (taxonomy source)
Monhystera elegantula Schuurmans Stekhoven, 1935 (additional source)
Monhystera filicaudata Allgén, 1929 (additional source)
Monhystera luisae Schuurmans Stekhoven, 1935 accepted as Thalassomonhystera luisae (Bresslau & Schuurmans Stekhoven in Schuurmans Stekhoven, 1935) (additional source)
Monhystera microphthalma de Man, 1880 accepted as Monhystrella microphthalma (de Man, 1880) Jacobs, 1987 (additional source)
Nemella ocellata Cobb, 1920 (additional source)
Odontophora setosa (Allgén, 1929) (additional source)
Oncholaimus oxyuris Ditlevsen, 1911 (additional source)
Oxystomina elongata (Bütschli, 1874) Filipjev, 1921 (additional source)
Paracanthonchus caecus (Bastian, 1865) Micoletzky, 1924 (additional source)
Paralinhomoeus conicaudatus (Allgén, 1930) accepted as Linhomoeus conicaudatus (Allgén, 1930) (additional source)
Pseudometachromadora Timm, 1954 (original description)
Pseudometachromadora longilaima (Schuurmans Stekhoven, 1950) Timm, 1954 (new combination reference)
Sabatieria americana Timm, 1952 accepted as Sabatieria punctata (Kreis, 1924) (original description)
Sabatieria punctata (Kreis, 1924) (additional source)
Sphaerolaimus balticus Schneider, 1906 (additional source)
Terschellingia communis de Man, 1888 (additional source)
Terschellingia longicaudata de Man, 1907 (additional source)
Theristus normandicus (de Man, 1890) accepted as Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (additional source)
Tripyloides gracilis (Ditlevsen, 1918) Filipjev, 1927 (additional source)