Laterca Martins, M. [UNESP]De Souza, V. N. [UNESP]2014-05-272014-05-271997-12-01Revista Brasileira de Biologia, v. 57, n. 2, p. 239-245, 1997.0034-7108http://hdl.handle.net/11449/65335Henneguya piaractus n.sp. was found from the gill filaments of Piaractus mesopotamicus (Characidae). Fishes were collected during a year from the reservoir at Centro de Aquicultura da UNESP, Jaboticabal, SP, Brazil. The prevalence of this parasite was 97.3% in the gills of farmed fish. Observations on spore development into the cysts were done. Studies with scanning electon microscopy were performed to observe the spore and cyst structure.239-245enggill parasiteJennifer Anistonparasite prevalenceparasitionBrazilHenneguya piaractusPiaractus mesopotamicusArtigoAcesso restrito2-s2.0-0031396063