Family Diplodiscidae Cohn, 1904
Catadiscus Cohn, 1904
Catadiscus freitaslenti Ruiz, 1943
Hosts and records: Waglerophis merremi (Wagler 1824) (Cba, SF, Ch), Lystrophis dorbignyi Duméril, Bibron & Duméril, 1854 (ER, C), Erythrolamprus aesculapii (Linnaeus, 1766) (M), Liophis almadensis (Wagler, 1824) (C), Liophis flavifrenatus (Cope 1862) (M), Bothrops alternatus Duméril, Bibron & Duméril, 1854 (SE), B. neuwedii diporus Cope 1862 (LR). Site of infection: large and small intestine.
Reference: Caubisens Poumarau (1968).
Catadiscus longicoecalis Caubisens Poumarau, 1965
Hosts and records: Bothrops neuwiedi diporus Cope 1862 (Ch), Waglerophis merremi (Wagler 1824) (ER, Ch), Lystrophis dorbignyi Duméril, Bibron & Duméril, 1854 (SF), Philodryas olfersii (Liechtenstein, 1823) (S).
Site of infection: small and large intestine.
Reference: Caubisens Poumarau (1965, 1968).
Catadiscus uruguayensis Freitas & Lent, 1939
Host and record: Liophis poecilogyrus (Wied, 1825) (BA). Site of infection: intestine.
Reference: Lunaschi & Drago (2002).