Reported from Paraíba and the offshore islands of Atol das Rocas and Trindade Island (Ref. 57756); common in St. Paul's Rocks (Ref. 13121). At Fernando de Noronha Archipelago, groups of about 100 individuals join groups of spinner dolphins to feed on feces and vomits of the cetaceans when they congregate in a shallow bay for rest and social interactions. The postures a dolphin adopts prior to defecating or vomiting are recognized, and the fish begin to converge to the dolphin shortly before the actual voiding. Offal feeding may be regarded as a simple behavioral shift from plankton feeding to drifting offal picking (Ref. 48727). Also Ref. 7251, 33499, 126840.