Boeger, Martins & Thatcher 1993. Ergasilus hypophthalmi n. sp. (Copepoda, Poecilostomatoida, Ergasilidae) from the gill rakers of the Amazonian catfishes, Hypophthalmus edentatus Spix and H. fimbriatus Kner. Revista Brasileira de Biologia, 53(3), agosto 1993: 421-424