First record of Grapsus grapsus (Linnaeus, 1758) (Brachyura: Decapoda: Grapsidae) in freshwater habitat

Abstract The sally lightfoot crab, Grapsus grapsus (Linnaeus, 1758), has been recorded from the oceanic islands off Brazil, as well as from the Caribbean, in coastal rocky shores in the Eastern Pacific, and in Galapagos. We report the first observation of G. grapsus in freshwater habitat, registered in a stream at Trindade Island, Brazil.