schneideri, we found eight species of nematodes from six families: Rhabdiasidae: Rhabdias fuelleborni Travassos, 1926 and Rhabdias elegans Gutierrez, 1945; Molineidae: Oswaldocruzia proencai Ben Slimane & Durette-Desset, 1995; Cosmocercidae: Cosmocerca podicipinus Baker & vaucher, 1984 and Cosmocerca parva Travassos, 1925; Kathlaniidae: Falcaustra mascula (Rudolphi, 1819) Freitas & Lent, 1941; Ascarididae: Porrocaecum sp.
Family Cosmocercidae Travassos, 1925 Genus Cosmocerca Diesing, 1861 Cosmocerca podicipinus Baker & vaucher, 1984 The caudal portion of the males of this species was extensively detailed for Gonzalez and Hamann (2004), those that provided new morphologic information related to the structure of the plectanas and the adanal papillae.
To date, only two records of parasitism in the genus Pleurodema are available, all of these by nematodes of the family
Cosmocercidae: Aplectana meriodionalis Lent and Freitas, 1948 infecting Pleurodema borellii Peracca, 1895 (Baker, 1980) and Oxyascaris oxyascaris Travassos, 1920 in P.