Monoecocestus myopotami Sutton, 1973
Type host. Myocastor coypus (Molina) (cited as M. c. bonariensis Commerson) (Mammalia: Myocastoridae). Site of infection. Small intestine.
Type locality. Argentina, Buenos Aires Province, Magdalena. Holotype: MLP 5978. Paratypes: MLP 5979 (2 specimens). Reference. Sutton (1973).