• Acanthopharyngoides bidentatus Jensen, 1985
• Acanthopharyngoides chitwoodi Wieser, 1954
• Acanthopharyngoides duplex Gerlach, 1963
• Acanthopharyngoides quintus
• Acanthopharyngoides scleratus Chitwood, 1936
• Acanthopharyngoides tyrrhenicus Wieser, 1954
• Acanthopharynx affinis Marion, 1870
• Acanthopharynx brachyapitata (Allgén, 1947)
• Acanthopharynx brachycapitata (Allgén, 1947)
• Acanthopharynx denticulata Wieser, 1954
• Acanthopharynx distechei Decraemer & Coomans, 1978
• Acanthopharynx japonica Steiner & Hoeppli, 1926
• Acanthopharynx marioni Schuurmans Stekhoven, 1942 accepted as Acanthopharynx micans Eberth, 1863
• Acanthopharynx merostomacha (Steiner, 1921)
• Acanthopharynx micans Eberth, 1863
• Acanthopharynx micramphis Schuurmans Stekhoven, 1942
• Acanthopharynx nuda (Cobb, 1920)
• Acanthopharynx oculata Marion, 1870
• Acanthopharynx perarmata Marion, 1870
• Acanthopharynx rigida Schuurmans Stekhoven, 1950
• Acanthopharynx seticauda Schuurmans Stekhoven, 1950 accepted as Acanthopharynx micans Eberth, 1863
• Acanthopharynx setosissima Schuurmans Stekhoven, 1943
• Acanthopharynx similis (Allgén, 1932)
• Acanthopharynx striatipunctata Marion, 1870 accepted as Cyatholaimus striatipunctatus Bastian, 1865
• Aculeonchus sphaericus Kreis, 1928 accepted as Croconema sphaericum (Kreis, 1928) accepted as Croconema sphaerica
• Adelphos rolandi Ott, 1997
• Alaimonema multicinctum Cobb, 1920
• Amphispira rotundicephala Cobb, 1920
• Bla nini Inglis, 1963 accepted as Croconema nini (Inglis, 1963)
• Bolbonema brevicolle Cobb, 1920 accepted as Bolbonema brevicollis Cobb, 1920
• Bolbonema brevicollis Cobb, 1920
• Bolbonema longisetosa
• Bolbonema longisetosum (Jensen, 1985)
• Bradylaimus gerlachi (Wieser & Hopper, 1967)
• Bradylaimus nyalii (Verschelde & Vincx, 1996)
• Bradylaimus onyxoides (Chitwood, 1936)
• Bradylaimus parvus Stekhoven, 1931 accepted as Bradylaimus suecica Allgén, 1929
• Bradylaimus pneumatica (Gerlach, 1956)
• Bradylaimus setosa (Hopper, 1961)
• Bradylaimus spectans (Gerlach, 1957)
• Bradylaimus suecica Allgén, 1929
• Catanema caelestis (Gerlach, 1956)
• Catanema cobbi Inglis, 1967 accepted as Laxus cobbi (Inglis, 1967)
• Catanema exile Cobb, 1920 accepted as Eubostrichus exilis Cobb, 1920
• Catanema macintyrei Platt & Zhang, 1982
• Catanema smo Platt & Zhang, 1982
• Catanema tenax
• Chromadoropsis dissoluta Wieser, 1954
• Chromadoropsis granulosus Furstenberg & Vincx, 1988 accepted as Atrochromadora granulosus (Furstenberg & Vincx, 1988)
• Chromadoropsis longispiculosa Furstenberg & Vincx, 1988 accepted as Atrochromadora longispiculosa (Furstenberg & Vincx, 1988)
• Chromadoropsis namibiensis Furstenberg & Vincx, 1988 accepted as Atrochromadora namibiensis (Furstenberg & Vincx, 1988)
• Chromadoropsis pacifica (Murphy, 1964)
• Chromadoropsis parva Wieser, 1954
• Chromadoropsis quadribula (Gerlach, 1956)
• Chromadoropsis quadribulba (Gerlach, 1956)
• Chromadoropsis vivipara de Man, 1907
• Chromaspirina amabilis (de Man, 1922)
• Chromaspirina chabaudi Boucher, 1975
• Chromaspirina cobbi Chitwood, 1938
• Chromaspirina crinita Gerlach, 1952
• Chromaspirina cylindricollis (Cobb, 1920)
• Chromaspirina cylindrocollis Cobb, 1920
• Chromaspirina denticulata (Gerlach, 1953)
• Chromaspirina dimorpha (Hopper, 1961)
• Chromaspirina dubia Inglis, 1968
• Chromaspirina gerlachi Blome, 1982
• Chromaspirina guanabarensis Maria, 2009
• Chromaspirina inaurita Wieser & Hopper, 1967
• Chromaspirina indica Gerlach, 1963
• Chromaspirina inflexa (Wieser, 1954)
• Chromaspirina inglisi Warwick, 1970
• Chromaspirina longisetosa Jensen, 1985
• Chromaspirina longisetosum Jensen, 1985 accepted as Bolbonema longisetosum (Jensen, 1985)
• Chromaspirina longosetosus Jensen, 1985 accepted as Bolbolaimus longosetosus (Jensen, 1985)
• Chromaspirina lunatica Gerlach, 1965
• Chromaspirina madagascarensis Gerlach, 1953
• Chromaspirina madagascariensis Gerlach, 1953
• Chromaspirina modesta Bussau, 1993
• Chromaspirina multipapillata Jayasree & Warwick, 1977
• Chromaspirina okemwai Muthumbi, Verschelde & Vincx, 1995
• Chromaspirina parapontica Luc & De Coninck, 1959
• Chromaspirina parma Ott, 1972
• Chromaspirina paucispira Schuurmans Stekhoven, 1950
• Chromaspirina pellita Gerlach, 1954
• Chromaspirina pellucida Cobb, 1920
• Chromaspirina pontica Filipjev, 1918
• Chromaspirina punctata Cobb, 1920
• Chromaspirina rabosa Gerlach, 1956
• Chromaspirina renaudae Boucher, 1975
• Chromaspirina robusta Wieser, 1954
• Chromaspirina spinulosa Wieser, 1959 accepted as Metadesmodora spinulosa (Wieser, 1959)
• Chromaspirina thieryi De Coninck, 1943
• Chromaspirina vanreuselae Verschelde & Vincx, 1996
• Chromaspirinia longisetosa Jensen, 1985 accepted as Chromaspirina longisetosa Jensen, 1985
• Croconema acrospiculum (Allgén, 1951)
• Croconema arcospiculum
• Croconema boucheri Ott, 1976
• Croconema cincta Cobb, 1920
• Croconema cinctum Cobb, 1920 accepted as Desmodora cincta (Cobb, 1920)
• Croconema floriani Verschelde, Nicholas & Vincx, 2006