. . "E. overstreeti sp. nov. infects T. melanospilos Bleeker from the Marquesas Islands. It differs from all known species of Echinocephalus by possessing 3 preanal, 1 adanal and 3 postanal pairs of papillae, E. overstreeti is most similar to E. sinensis by virtue of possessing a rugose area near the cloaca of the male. The holotype of E. sinensis possesses 3, rather than 2, pairs of preanal papillae and modified annules on the ventral surface of posterior extremity. Scanning electron photomicrographs of both species are included." . "Deardorff, T. & Ko, R. 1983. Echinocephalus overstreeti sp. n. (Nematoda: Gnathostomatidae) in the stingray Taeniura melanopilos Bleeker, from the Marquesas Islands, with comments on E. sinensis Ko, 1975. Proceedings of the Helminthological Society of Washington, 50(2): 285-293." . "E. overstreeti sp. nov. infects T. melanospilos Bleeker from the Marquesas Islands. It differs from all known species of Echinocephalus by possessing 3 preanal, 1 adanal and 3 postanal pairs of papillae, E. overstreeti is most similar to E. sinensis by virtue of possessing a rugose area near the cloaca of the male. The holotype of E. sinensis possesses 3, rather than 2, pairs of preanal papillae and modified annules on the ventral surface of posterior extremity. Scanning electron photomicrographs of both species are included." . "1983"^^ . . "1983"^^ . "Deardorff (1983)" . "Deardorff (1983)" .