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2. Baker, A. D.: Check list of the nematode superfamilies Dorylaimoidea, Rhabditoidea, Tylenchoidea, and Aphelenchoidea. 261 pp. Leiden: E. J. Brill 1962.
3. Chitwood, B. G., and M. B. Chitwood: An introduction to nematology. Rev. Ed. pp. 213. Baltimore: Monumental Printing Co. 1950.
4. s'Jacob, J. J.: Hoplotylus femina n. g., n. sp. (Pratylenchinae: Tylenchida) associated with ornamental trees. Nematologica 4, 317?321 (1959).
5. Luc, M., and J. B. Goodey: Hirschmannia n. g. differentiated from Radopholus Thorne, 1949 (Nematoda: Tylenchoidea). Nematologica 7, 197?202 (1962).