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Sea lice are widespread copepods in marine teleost around the world. In this paper the first record of Caligus asperimanus Pearse, 1951 in the Western South Atlantic is documented parasitizing Lutjanus jocu and Lutjanus vivanus caught from coastal zones of Espírito Santo and Rio de Janeiro State, respectively.

Kisakiellus aweti Sousa and Elmoor-Loureiro, 2018 (Cladocera, Chydoridae) was described from first-order streams in Upper Xingu River basin. Here, we report a new occurrence of this species from Araguari river, Amapá, Brazil, extending its distribution range for more than 1,500 km in Amazon Hydrogeographic Region.