Caballero-Deloya 1977. [Helminthological study on the wild animals at the Tropical Biological Station "Los Tuxtlas", Veracruz. Nematoda 2. Description of Spirocamallanus neocaballeroi sp. nov. (Nematoda: Camallanidae), from the intestine of Astyanax fasciatus (Cuvier).] Universidad Nacional Autonoma de Mexico Instituto de Biologia Publicaciones Especiales, 4 1977: 409-414