The gastrointestinal tracts, lungs and urinary bladders of 35 Bufo quercicus from Florida (U.S.A.) were examined for helminths. Four genera of nematods (Ascarops, Cosmocercoides, Filariidae gen. indet. and Physaloptera) and one genus of acanthocephalan (Polymorphus) were found. The highest prevalence was 11 % for Cosmocercoides, and the greatest mean intensity was 4.5 for Ascarops sp. Bufo quercicus is a new host record for each of these genera of helminths.