Acuariidae Railliet, Henry & Sisoff, 1912 (basis of record)
Acuarioidea Railliet, Henry & Sisoff, 1912 (basis of record)
Anisakidae Railliet & Henry, 1912 (basis of record)
Anisakinae Railliet & Henry, 1912 (basis of record)
Anisakinea Railliet & Henry, 1912 accepted as Anisakinae Railliet & Henry, 1912 (basis of record)
Anisakis Dujardin, 1845 (basis of record)
Ascarididae Baird, 1853 (basis of record)
Ascaridinae Baird, 1853 (basis of record)
Ascaridoidea Baird, 1853 (basis of record)
Ascaris Linnaeus, 1758 (basis of record)
Ascarophis van Beneden, 1871 (basis of record)
Contracaecinae Mozgovoi & Shakhmatova, 1971 (basis of record)
Contracaecum Railliet & Henry, 1912 (basis of record)
Cucullanidae Cobbold, 1864 (basis of record)
Cucullaninae Cobbold, 1864 (basis of record)
Cucullanus Müller, 1777 (basis of record)
Cystidicola Fisher, 1798 (basis of record)
Cystidicolidae Skrjabin, 1946 (basis of record)
Dichelyne Jägerskiöld, 1902 (basis of record)
Filaroididae Schulz, 1951 (basis of record)
Habronematoidea Ivaschkin, 1961 (basis of record)
Paranisakinea Andersen, Chabaud & Willmott, 1974 (basis of record)
Paranisakiopsis Yamaguti, 1941 (basis of record)
Phocascaris Höst, 1932 (basis of record)
Raphidascaridinea Hartwich, 1954 (basis of record)
Rhabdochona Railliet, 1916 (basis of record)
Rhabdochonidae Skrjabin, 1946 (basis of record)
Seuratiinae Chitwood & Wehr, 1932 (basis of record)
Seuratoidea Hall, 1916 (basis of record)
Spirurina (basis of record)
Spiruroidea Oerley, 1885 (basis of record)