• Ancyracanthus impar Schneider, 1866 accepted as Cystidicola farionis Fischer, 1798
• Ascarophis (Ascarophis) nasonis Machida, 1981
• Ascarophis (Dentiascarophis) adioryx Machida, 1981
• Ascarophis (Paraspinitectus) beaveri Overstreet, 1970
• Ascarophis (Similascarophis) ayalai (Caballero, 1975) Moravec et Justine, 2007
• Ascarophis (Similascarophis) chilensis (Muñoz, González & George-Nascimento, 2004) Moravec & Justine, 2007
• Ascarophis (Similascarophis) marina (Szidat, 1961) Ivanov, Navone & Martorelli, 1997
• Ascarophis (Similascarophis) maulensis (Muñoz, González & George-Nascimento, 2004) Moravec & Justine, 2007
• Ascarophis (Similascarophis) mexicana (Moravec, Salgado-Maldonado & Vivas-Rodriguez, 1995) Moravec & Justine, 2007
• Ascarophis (Similascarophis) nasonis Machida, 1981 accepted as Ascarophis (Ascarophis) nasonis Machida, 1981
• Ascarophis (Similascarophis) richeri Moravec & Justine, 2007
• Ascarophis adioryx Machida, 1981 represented as Ascarophis (Dentiascarophis) adioryx Machida, 1981
• Ascarophis arctica Polyansky, 1952
• Ascarophis argumentosa Skryabina, 1966 accepted as Capillospirura argumentosa (Skryabina, 1966) Appy & Anderson, 1982
• Ascarophis ayalai Caballero, 1975 accepted as Ascarophis (Similascarophis) ayalai (Caballero, 1975) Moravec et Justine, 2007
• Ascarophis beaveri Overstreet, 1970 represented as Ascarophis (Paraspinitectus) beaveri Overstreet, 1970
• Ascarophis beryx Kataitseva, 1979
• Ascarophis brasiliensis Pinto, Vicente & Noronha, 1984
• Ascarophis capelanus Nikolaeva & Naidenova, 1964
• Ascarophis carvajali Muñoz & George-Nascimento, 2007
• Ascarophis cestus Chitwood, 1934
• Ascarophis collaris Petter, 1970 accepted as Collarinema collaris (Petter, 1970) Moravec & Sobecka, 2012
• Ascarophis cooperi Johnston & Mawson, 1945
• Ascarophis crassicollis Dollfus & Campana-Rouget, 1956
• Ascarophis curvicauda Zhukov, 1960
• Ascarophis distorta Fusco & Overstreet, 1978
• Ascarophis draconi Muñoz & George-Nascimento, 2007
• Ascarophis epinepheli Wang, 1984
• Ascarophis erythrichthys Kataitseva, 1981
• Ascarophis extalicola Appy, 1981
• Ascarophis filiformis Poljansky, 1952
• Ascarophis girellae (Yamaguti, 1935)
• Ascarophis gymncranii (Yamaguti, 1935)
• Ascarophis holocentri Parukhin, 1984 accepted as Ascarophis adioryx Machida, 1981 represented as Ascarophis (Dentiascarophis) adioryx Machida, 1981
• Ascarophis jaenschi (Johnston & Mawson, 1940)
• Ascarophis japonica Zhukov, 1960
• Ascarophis litoralica Zhukov, 1960
• Ascarophis longiovata Moravec & Klimpel, 2009
• Ascarophis longispicula Zhukov, 1960
• Ascarophis malmae Dogiel & Achmerov, 1959
• Ascarophis marina (Szidat, 1961) Ivanov, Navone & Martorelli, 1997 represented as Similascarophis marina (Szidat, 1961) Muñoz, González & George-Nascimento, 2004 accepted as Ascarophis (Similascarophis) marina (Szidat, 1961) Ivanov, Navone & Martorelli, 1997
• Ascarophis mexicana Moravec, Salgado-Maldonado & Vivas-Rodriguez, 1995 accepted as Ascarophis (Similascarophis) mexicana (Moravec, Salgado-Maldonado & Vivas-Rodriguez, 1995) Moravec & Justine, 2007
• Ascarophis minuta Ko, 1985
• Ascarophis morrhuae van Beneden, 1871
• Ascarophis morronei Aguilar-Aguilar, Ruiz-Campos, Martorelli, Montes & Martínez-Aquino, 2019
• Ascarophis mullus Naidenova & Nikolaeva, 1968
• Ascarophis nasonis Machida, 1981 represented as Similascarophis nasonis (Machida, 1981) Muñoz, González & George-Nascimento, 2004 accepted as Ascarophis (Similascarophis) nasonis Machida, 1981 accepted as Ascarophis (Ascarophis) nasonis Machida, 1981
• Ascarophis nototheniae Johnston & Mawson, 1945
• Ascarophis orientalis Spasski & Rakova, 1958
• Ascarophis ovotrichiura (Skrjabin, 1924) accepted as Capillospirura ovotrichiurua Skrjabin, 1924
• Ascarophis pacifica Zhukov in Spassky & Rakova, 1960
• Ascarophis parupenei Moravec, Orecchia & Paggi, 1988
• Ascarophis patagonica Brugni & Viozzi, 2008
• Ascarophis pontica Nikolaeva, 1970
• Ascarophis prosper Naidenova, Dolgikh & Nikolaeva, 1970
• Ascarophis scatophagi Moravec, Yooyen & Sanprick, 2018
• Ascarophis sebastodis Olsen, 1952
• Ascarophis skrjabini (Layman, 1933) Polyanski, 1952
• Ascarophis slankisi Solov'eva, 1987
• Ascarophis sobolevi Parukhin, 1989
• Ascarophis tropica (Solov'eva, 1996) Pereira, Pereira, Timi & Luque, 2013
• Ascarophis upenei Parukhin, 1978
• Ascarophis upeneichthys Johnston & Mawson, 1945
• Ascarophis valentina Ferrer, Aznar, Balbuena, Kostadinova, Raga & Moravec, 2005
• Ascarophisnema gymnocranii (Yamaguti, 1935) Moravec & Justine, 2010 (uncertain > taxon inquirendum)
• Ascarophisnema gymocranius (Yamaguti, 1935) Moravec & Justine, 2010 accepted as Ascarophisnema gymnocranii (Yamaguti, 1935) Moravec & Justine, 2010
• Ascarophisnema hoiae Beveridge & Moravec, 2020
• Ascarophisnema tridentatum Moravec & Justine, 2010
• Caballeronema pseudoargumentosus Appy & Dadswell, 1978 accepted as Capillospirura pseudoargumentosa (Appy & Dadswell, 1978) Appy & Anderson, 1982
• Caballeronema wardlei (Smedley, 1934) Margolis, 1977
• Capillospirura argumentosa (Skryabina, 1966) Appy & Anderson, 1982
• Capillospirura ovotrichiurua Skrjabin, 1924
• Capillospirura pseudoargumentosa (Appy & Dadswell, 1978) Appy & Anderson, 1982
• Collarinema collaris (Petter, 1970) Moravec & Sobecka, 2012
• Collarinema eutriglae Moravec & Sobecka, 2012
• Collarinema triglae Sey, 1970
• Comephoronema beatriceinsleyae (Holloway & Klewer, 1969)
• Comephoronema johnsoni Arya, 1978 (uncertain > taxon inquirendum)
• Comephoronema mackiewiczi Malhotra & Rautela, 1985 accepted as Rhabdochona hospeti Thapar, 1950
• Comephoronema macrochiri Moravec & Klimpel, 2007
• Comephoronema multipapillatum Pereira, Pereira & Luque, 2014
• Comephoronema oschmarini Trofimenko, 1974
• Comephoronema trichiae Arya, 1991
• Comephoronema werestschagini Layman, 1933
• Crassicauda anthonyi Chabaud, 1962
• Crassicauda bennetti Spaul, 1926
• Crassicauda boopis Baylis, 1920
• Crassicauda carbonelli Raga & Balbuena, 1990
• Crassicauda costata Skrjabin, 1969
• Crassicauda crassicauda (Creplin, 1929) Leiper & Atkinson, 1914
• Crassicauda delamureana Skrjabin, 1966
• Crassicauda duguyi Dollfus, 1966
• Crassicauda fuelleborni (Hoeppli & Hsü, 1929) Baylis, 1932
• Crassicauda giliakiana Skrjabin & Andreeva, 1934
• Crassicauda grampicola Johnston & Mawson, 1941
• Crassicauda magna Johnston & Mawson, 1939
• Crassicauda pacifica Margolis & Pike, 1955 accepted as Crassicauda boopis Baylis, 1920
• Crassicauda tortilis Skrjabin, 1959
• Cristitectus congeri Petter, 1970
• Ctenascarophis gastricus Mamaev, 1968