Lenis, C.; Vélez, I. Digeneans in Trachemys Callirrostris Callirostris and Podocnemis lewyana (Testudinata) from the Magdalena River, Colombia: Description of Pseudonematophila n. Gen. and Amendment of Nematophila Travassos, 1934 (Cladorchiidae: Schizamphistominae). Zootaxa 2011, 3095, 49–62.