New species of parasitic copepods of the genus Acusicola (Poecilostomatoida: Ergasilidae) from gill filaments of coastal and freshwater Brazilian fishes, and proposition of Acusicola rogeri n. sp. for A. tenax sensu Cressey & Collette (1970). Hydrobiologia, 324(3), may 24 1996: 183-193. 187 [Zoological Record Volume 133]