In the present work the authors propose a new species under the subgenus P. (Plagioporus) Stafford, 1904, which is enclosed in the second group of Travassos & cols. (1966) distribution, nearest to p. (P.) multilobatus Travassos & cols., 1966 differing from it mainly by possessing the vitelaria level at the acetabulum, genital pore level with intestinal bifurcation and smaller eggs. They present for Enenterum pimelopteri Nagaty, 1942 and Pseudopecoelus priacanthi (Mac Callum, 1921) Manter, 1947 new geographical distributions. For P. priacanthi they add Garrupa sp. as new host record. They refer Hysterolecitha elongata Manter, 1940, Metadena spectanda Travassos, Freitas & Bührnheim, 1967 and an imature acanthocephalan female under Echinorhynchideae Southwell & Macfie, 1925.