Records of new localities and hosts for crustacean parasites in fish from the eastern Amazon in northern Brazil.

The aim of this study was to investigate parasites crustacean fauna in , , , , , , , , , , and of the State Amapá and Pará, in northern Brazil. A total of 242 parasites, including , , , , , , , and undetermined Lernaeidae, were collected from these hosts. The species had the greatest richness among the community of parasitic crustaceans. There was a low abundance of parasites among the hosts, other than , was most abundant in the integument of and . Finally, the present study reported nine new hosts for the crustacean parasite species and expanded knowledge of the occurrence of some parasite species in the Jari River basin, in eastern Amazon.