Mehra 1966. Revision of AUocreadioidea Nicoll, 1934. Part II. Families: Opecoelidae Ozaki, 1925, Opistho-lebetidae Fukui, 1929, Allocreadiidae Stossich, 1903, Bunoderidae Nicoll, 1914, Acanthocolpidae Luhe,1909 and Pleorchiidae Poche, 1925. Part III. Families Monor-chiidae Odhner, 1911, Asymphyiodoridae Mehra, 1962 and Zoogonidae Odhner, 1911. Published by Author, Allahabad, 1966: 58 pp.