Varella, A. Gamidactylus bryconis sp.n. (Copepoda, Poecilostomatoida, Valgamidae)das fossas nasais de peixes, Brycon pellegrini Holly, 1929 e B. melanopterus (Cope, 1872)da Amazonia brasileira Subjects--Topical Terms: MatrinxaCopepodaParasitoAmazonia