Family Heligmosomidae
Citellinema sp.
Phyllotis darwinii, Lima, Perú, Sarmiento & Pacheco (1993) in Sarmiento et al. (1999).
Heligmosomoides polygyrus
Myocastor coypus, Unspecified locality, Lorber (1932); Gebauer (1932); Heidegger (1931) and Schmid (1933) in Babero & Lee (1961).
Heligmosomoides sp.
Abrothrix longipilis, Reserva Nacional Lago Peñuelas, Chile, Cattan et al. (1992) in Landaeta-Aquevete et al. (2007).
Heligmosomum alpha
Myocastor coypus, Unspecified locality, Henry (1931) in Babero & Lee (1961).
Heligmosomum sprehni
Myocastor coypus, Unspecified locality, Enigk (1933).
Viannella viscaciae
Lagidium viscacia, South America, Goodey (1925).
Lagostomus maximus, La Pampa, Argentina, Foster et al. (2002).
Lagostomus maximus, San Luis, Argentina, Rossanigo et al. (1986).