Aplectana adaechevarriae Ramallo, Bursey & Goldberg, 2008 (basis of record)
Aplectana delirae (Fabio, 1971) Baker, 1980 (basis of record)
Aplectana fusiforme Savazzini, 1928 (status source)
Aplectana hylambatis (Baylis, 1927) Travassos, 1931 (basis of record)
Aplectana mexicana (Caballero, 1933) Ballesteros-Marquez, 1945 (basis of record)
Aplectana tarija Ramallo, Bursey & Goldberg, 2007 (basis of record)
Borrellostrongylus platensis Gutiérrez, 1945 (basis of record)
Bufonerakis andersoni Baker, 1980 (basis of record)
Cosmocerca cruzi Rodrigues & Fabio, 1970 (additional source)
Cosmocerca parva Travassos, 1925 (additional source)
Cosmocerca podicipinus Baker & Vaucher, 1984 (additional source)
Cosmocerca rara Freitas & Vicente, 1966 (basis of record)
Cosmocercella minor (Freitas & Dobbin, 1961) Baker & Adamson, 1977 (basis of record)
Falcaustra mascula (Rudolphi, 1819) Freitas & Lent, 1941 (additional source)
Falcaustra sanjuanensis Gonzalez, Sanabria & Quiroga, 2013 (additional source)
Gyrinicola chabaudi Araujo & Artigas, 1982 (additional source)
Hedruris mucronifer Schuurmans Stekhoven, 1952 (basis of record)
Icosiella neglecta (Diesing, 1851) Seurat, 1917 (additional source)
Oswaldocruzia mazzai Travassos, 1935 (basis of record)
Oswaldocruzia proencai Ben Slimane & Durette-Desset, 1995 (basis of record)
Oswaldocruzia subauricularis (Rudolphi, 1819) (basis of record)
Oxyascaris caudacutus (Freitas, 1958) Baker & Vaucher, 1984 (basis of record)
Rhabdias elegans Gutierrez, 1945 (additional source)
Rhabdias fuelleborni Travassos, 1926 (basis of record)
Rhabdias mucronata Schuurmans Stekhoven, 1952 (additional source)
Rhabdias sphaerocephala Goodey, 1924 (basis of record)
Rhabdias truncata Schuurmans Stekhoven, 1952 (additional source)
Schrankiana Strand, 1942 (additional source)
Schrankiana chacoensis Gonzalez & Hamann, 2014 (additional source)
Schrankiana schranki (Travassos, 1925) Strand, 1942 (basis of record)
Serpinema trispinosum (Leidy, 1852) (basis of record)