“…Species of Podocnemis are hosts for 4 species of amphistome digeneans, namely, Nematophila grandis (Diesing, 1836) Travassos, 1934, Nematophila venezuelensis (Cordero & Vogelsang, 1940) Yamaguti, 1958, Halltrema heteroxenus (Cordero & Vogelsang, 1940 Jones, 2005, and Halltrema avitellinum Lent & Freitas, 1939(Travassos, 1934Lent and Freitas, 1939;Yamaguti, 1971;Sey, 1991;Jones, 2005b).…”