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Dwivedi, M.P. 1966. On a new species of <i>Haplocaecum</i> Simha, 1958, (Trematoda, Digenea) from a water snake <i>Tropidonotus piscator</i>. Revista de Biología Tropical. 14, 1 (Jul. 1966), 87–91. DOI:https://doi.org/10.15517/rev.biol.trop.1966.28566.